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Mon Sep 3, 2012, 04:16 PM

Chess (September): So you thought the Olympics ended, eh?

Special Theme Music for September: Leo Arnaud, Buglar's Dream, John Williams conducting

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Chess Olympics Begin in Istanbul


Photo by Robster1983 (http://en.wikipedia.org/wiki/User:Robster1983) in Wikimedia Commons (http://en.wikipedia.org/wiki/File:%C4%B0stanbul-Ayasofya.JPG)
(Public Domain)

The fortieth Chess Olympiad began August 28 in the fabled city of Istanbul with 156 nations competing in general group and 125 in the women's group.

The sixth round round was played today. Russia, Armenia and Azerbaijan lead the general group with 11 match points each followed by China, Hungary, the Philippines and the defending champions from Ukraine, each with 10 match points. In the women's group, Russia and Poland are tied for the lead at 11 match points each, followed by five teams at 10 points apiece: China, France, Georgia, Ukraine and Vietnam.

In today's action, Russia and Armenia fought to a 2-2 tie with former world champion Vladimir Kramnik defeating Armenian GM Levon Aronian, the highest rated player at this Olympiad, on board one. On board two, Sergei Movsesian took down former Russian national champion Alexander Grischuk. Meanwhile, the Azerbaijanis, who are without the services of Vugar Gashimov in Istanbul, climbed into a tie for first play with a 3-1 win over Croatia behind wins by Teimour Radjabov and Shakhriyar Mamedyarov. Gahimov is sitting out this Olympiad due to illness.

In the women's group today, Russia and China played a tied match when Hou Yifan defeated Tatiana Kosintseva on board one, but Nadezhda Kosintseva took revenge for her sister's loss by beating Zhao Xue on board two. Poland moved into a first place tie with Russia by crushing Serbia, 3½-½.

Tomorrow in the general group, Russia will play against Azerbaijan and Armenia goes up against China. In the women's group, Russia will take on Poland.

The United States general squad enter the Olympics with hopes of a medal, but after starting with three match wins have played three straight ties and are in a seven-way tie for fifth place. The American women are tied for 18th place on 8 match points with 3 wins, a loss (to Vietnam) and two ties.

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Reply Chess (September): So you thought the Olympics ended, eh? (Original post)
Jack Rabbit Sep 2012 OP
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Response to Jack Rabbit (Original post)

Mon Sep 3, 2012, 04:31 PM

1. August Games


Your humble hare acknowledges the assistance of Rybka 4 and Fritz 13 on analysis.

Diagrams on the Jack Rabbit Chess Report are made with Aquarium, a commercially available interface for Rybka.

Diagrams and other images are hosted on .com.

BLACK



WHITE
White to move
(This position is a theoretical draw)


I would like to thank my impressive and loyal staff: Buccaneer, Spitfire, Desperado, Swashbuckler, Pancho and Robin Hood.

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Response to Jack Rabbit (Reply #1)

Mon Sep 3, 2012, 04:32 PM

2. Russian National Championships, General and Women's Groups




Red Square, Moscow
Photo by Adam Baker, flickr (Creative Commons License, Attribution/Share Alike)

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Response to Jack Rabbit (Reply #2)

Mon Sep 3, 2012, 04:36 PM

3. Andreikin - Sjugirov, Round 6

Former world junior champion Dmitry Andreikin, 22, won a six-way playoff to become the new Russian National Champion.



There is no photo of Dmitry Andreikin available with an internet-friendly copyright

Photo by Jon Sullivan from public-domain-photos.com (Public Domain)


Andreikin,Dmitry - Sanan Sjugirov
Russian National Championship, Round 6
Moscow, 9 August 2012

Open Caro-Kann Game: Karpov Defense


1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Ng5 e6 7.Qe2 Nb6 8.Bd3 h6 9.N5f3 c5 10.dxc5 Bxc5 11.Ne5 0-0 12.Ngf3 a6 (N)

  • For moves and variations up to here, see the blue notes to Black's fourth move in Kamsky-Seirawan, US Ch, St. Louis, 2012.
  • If 12...Nbd7 13.0-0 Qc7 14.Bf4 Bd6 then:
    • If 15.Rfe1 then:
      • If 15...Nc5 16.Rad1 b6 then:
        • 17.c3 Bb7 18.Bc2 Rfd8 19.Rd4 a5 20.b4 gives White a small advantage with the initiative and more space (Godena-Malakhov, Op, Montecatini Terme, 1997).
        • 17.Bb5 Nd5 18.Bg3 Bb7 19.c4 Nf6 20.Rxd6 Qxd6 is equal (Klovans-Vyzmanavin, Soviet Ch ½-final, Minsk, 1983).
      • If 15...Nxe5!? then:
        • If 16.Nxe5 b6 17.Rad1 Bb7 18.Bg3 then:
          • 18...Rad8 19.c3 Ba8 20.Bb1 Qb7 21.f3 Be7 22.Bf2 gives White a small advantage in space (Geller-Dlugy, Athens, 1984).
          • 18...Rfd8 19.c3 Bd5 20.Bb1 Rac8 21.Rd4 Qb7 22.Ng4 is equal (T. Horvath-Chandler, IT, Keszthely, Hungary, 1981).
        • 16.Bxe5 Bxe5 17.Qxe5 Qxe5 18.Nxe5 Rd8 19.Rad1 gives White the advantage in space (Godena-Papaioannou, Euro ChT, Plovdiv, 2003).
    • If 15.Nxd7 Bxd7 16.Bxd6 Qxd6 then:
      • 17.Ne5 Rfd8 18.Rad1 Qb6 19.Nxd7 Rxd7 20.c3 Rad8 gives Black a slight advantage with command of the d-file (Jansa-Kholmov, TT, Budapest, 1976).
      • 17.Rad1 Qc7 18.Qe5 Rac8 19.Qxc7 draw (Vladimirov-Kharitonov, Soviet Army Ch, Frunze, 1988).

13.g4

  • White has a small advantage in space.

13...Nbd5?!

  • The Knight a b6 covers weak light squares on the queenside. At d5, the Knight has little future.
  • If 13...Nfd7 14.Bd2 Nxe5 15.Nxe5 Qf6 16.0-0 continues to give White a small advantage in space.

14.Rg1!?

  • This isn't objectively the best, and may have been a calculated risk that paid off in spades.
  • If 14.g5! hxg5 15.Bxg5 Qa5+ 16.Bd2 Qb6 17.0-0-0 gives White command of the center and a safer King.
  • Also worth considering is 14.Bd2 when:
    • 14...Nd7 15.h4 Bd6 16.g5 Nxe5 17.Nxe5 gives White a comfortable game.
    • If 14...Qb6?! 15.0-0-0 then:
      • 15...Nd7 16.h4 Nxe5 17.Nxe5 Bd6 18.Nc4 Qc6 19.g5 leaves White poised for a vicious kingside attack.
      • If 15...Nb4? 16.Bxb4! then:
        • If 16...Qxb4 17.Rhg1 then:
          • If 17...Qf4+ 18.Kb1 then:
            • 18...Nd7 19.g5 Nxe5 20.Nxe5 hxg5 21.Qh5 Qh4 22.Bh7+ wins it all after 22...Kh8 23.Nxf7+ Rxf7 24.Qxf7 Kxh7 25.Rd8.
            • 18...Nd5? then White wins after 19.c3 g6 20.g5! h5 21.Qc2 Bd6 22.Rde1.
          • 17...Bd6 then White wins after 18.h4 Nd5 19.a3 Qf4+ 20.Kb1.
        • If 16...Bxb4 then White wins after 17.Rhg1 Qa5 18.c3 Be7 19.g5 hxg5 20.Nxg5.

14...Bb4+?

  • White apparently doesn't see the calamity after White's reply.
  • 14...Qb6 15.a3 Bd4 16.Kf1 Bxe5 17.Nxe5 Nd7 18.c4 gives White a fair advantage in space.


BLACK: Sanan Sjugirov




WHITE: Dmitry Andeikin
Position after 14...Bc5b4+


15.Kf1!

  • White does what he has to do. The King is only slightly safer here than in the center, but White had a better cneter and the makings of a kingside attack.
  • 15.Bd2? Nf4 16.Qe3 N6d5 17.Qe4 Bxd2+ 18.Nxd2 f5 is equal; White's King is still in the center, his Queen is being knocked about and Black's Knight are at play in the center.

15...Be7 16.g5!

  • The pawn advance brings White's who position to life.

16...hxg5 17.Nxg5

  • Suddenly, Black's kingside looks unprepared.
  • Also good is 17.Bxg5 Qc7 18.Qd2 Ne8 19.Bh6 f5 20.Re1.

17...Bd6

  • No better is 17...Qc7 18.Nh7 when:
    • 18...Ne8 19.Qh5 f5 20.Nxf8 Bxf8 21.Ng6 White's Queen and Knight are ready to knock the Black King from g8 to Timbuktu.
    • 18...Nxh7 loses quickly after 19.Bxh7+ Kh8 20.Bd3 Ne3+ 21.Qxe3 f5 22.Qh3+.

18.Nh7 Qc7 19.Bh6!

  • Black is completely busted.

19...Ne8

  • If 19...g6 20.Nxf6+ Nxf6 21.Nxg6!! (stripping the Black King of all protection) 21...fxg6 22.Rxg6+ then:
    • If 22...Kf7 then White wins after 23.Rg7+ Ke8 24.Bg6+ Rf7 25.Rd1
    • 22...Kh8 23.Bxf8 Bxf8 24.Rxf6 Kg8 25.Qh5 puts the Black King in a mating net.

20.Bxg7 Nxg7

BLACK: Sanan Sjugirov




WHITE: Dmitry Andeikin
Position after 20...Ne8g7:B


21.Rxg7+!!

  • The sacrifice rounds off a splendid attack.

21...Kxg7 22.Qg4+ Kh8 23.Nf6 1-0

  • If 23...Ne7 then White gives mate after a forced march: 24.Qh4+ Kg7 25.Qh7+ Kxf6 26.Ng4+ Kg5 27.Qh6+ Kxg4 28.h3+ Kf3 29.Qe3#.
  • Sanan Sergeyevich resigns.

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Response to Jack Rabbit (Reply #2)

Mon Sep 3, 2012, 04:38 PM

4. Pogonina - Gunina, Round 5

Natalia Pogonina is the new Russinan Women's Champion.



Natalia Pogonina
Photo by Otdanon in Wikimedia Commons (http://commons.wikimedia.org/wiki/Category:Natalia_Pogonina)
(Public Domain)


Natalia Pogonina - Valentina Gunina
Russian Women's Championship, Round 5
Moscow, 7 August 2012

Closed Caro-Kann Game: Short Opening


1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nf3 e6 5.Be2 Ne7 6.0-0 h6


7.Nbd2 Bg6

  • If 7...Nd7 8.Nb3 Bh7 9.Bd2 Ng6 then:
    • If 10.a4 Be7 11.a5 then:
      • 11...0-0 12.c4 dxc4 13.Bxc4 Qb8 14.Re1 Rd8 15.Qe2 gives White a clear advantage in space (Efimenko-Joriczik, Bundesliga 0809, Tegernsee, 2008).
      • If 11...a6?! 12.c4 0-0 13.cxd5 exd5 then:
        • 14.Ne1?! c5 15.f4 Nh4 16.Nf3 Nxf3+ 17.Bxf3 gives White a small advantage in space (Naiditsch-Röder, Euro Ch, Aix-les-Bains, 2011).
        • 14.Re1! Re8 15.Bd3 Ndf8 16.Qc2 Ne6 17.Nc1 gives White a fair advantage.
    • If 10.c4 dxc4 11.Na5 Rb8 12.Nxc4 then:
      • If 12...Nb6 then:
        • 13.Na5 Nh4 14.b4 Nxf3+ 15.Bxf3 is equal (N. Mamedov-Jobava, Op, Baku, 2008).
        • 13.Rc1 Nxc4 14.Bxc4 Be7 15.Bd3 0-0 16.g3 gives White a samll adavantage in space.
      • 12...Nh4 13.Nxh4 Qxh4 14.f4 Nb6 15.Nxb6 axb6 16.Be3 gives White a fair advantage; the pawn break d4d5 may be of some use (Lastin-Timman, Op, Buku, 2008).

8.Nb3

  • 8.c3 Nf5 9.Nb3 Nd7 10.a4 Be7 11.g4 Nh4 is equal (Pogonina-Ushenina, World Epd ChW, Batumi, 2012).

8...Nf5

  • If 8...Nd7 9.Bd2 then:
    • If 9...Nc8!? 10.c4 dxc4 11.Na5 then:
      • 11...Qc7 12.Nxc4 Ncb6 13.Ba5 Be7 14.Bd3 Bxd3 15.Qxd3 gives White a small advantage in space (Vachier Lagrave-Ivanchuk, Mindgames Blind, Beijing, 2011).
      • If 11...Rb8 12.Nxc4 then:
        • 12...Ncb6?! 13.Ba5! Be7 14.Qb3 0-0 15.Rac1 gives White a comfortable game.(Svidler-Dreev, World Rpd Ch, Astana, 2012).
        • 12...Ndb6 13.Ne3 Be7 14.a4 Nd5 15.a5 gives White a small advantage in space.
    • 9...Nf5! 10.Rc1! Be7 11.Ba5 b6 12.Bd2 0-0 13.c4 is equal (Grischuk-Bologan, World Rpd Ch, Astana, 2012).

9.a4 Nd7 10.a5 a6 (N)

  • 10...Rc8 11.c4 Be7 12.cxd5 cxd5 13.Bd3 0-0 is equal (Karjakin-Grischuk, World Rpd Ch, Astana, Kazakhstan, 2012).

11.c4

  • White has a slight advantage in space.

11...Be7 12.cxd5

  • 12.Bf4!? 0-0 13.h3 dxc4 14.Bxc4 b5 15.Bd3 c5 is equal.

12...cxd5 13.Bd3

  • White should overprotect his head pawn.
  • 13.Bf4 b6 14.g4 Nh4 15.Nxh4 Bxh4 continues to give White a slight advantage in space.

13...0-0 14.g4 Nh4


    15.Nxh4 Bxd3 16.Qxd3 Bxh4

    • White continues to enjoy a slight edge.

    17.Bd2 f5 18.h3!?

    • White eschews the c-file.
    • If 18.Rac1 Rc8 then:
      • 19.f4 Rxc1 20.Rxc1 Rf7 21.h3 g5 22.Kh2 gives White a slight advantage in space.
      • 19.Be3!? b5! 20.axb6 Rxc1 21.Rxc1 Qxb6 22.gxf5 Rxf5 is equal.


    BLACK: Valentina Gunina




    WHITE: Natalia Pogonina
    Position after 18.h2h3


    18...Rf7!?

    • Black does likewise.
    • 18...Rc8! 19.Rac1 Rxc1 20.Nxc1 Qe8 21.Kg2 Nb8 is equal.

    19.f4!?

    • White has a clear advantage in space on the kingside, but still invites Black to seize the queenside.
    • If 19.Rac1! Bg5 20.f4 then:
      • 20...Bh4 21.Qc2 Qe7 22.Rf3 Nb8 23.Nc5 Nc6 24.Qd3 gives White a small advantage in space.
      • If 20...Be7!? then:
        • 21.Kh2 Rc8 22.Rxc8 Qxc8 23.Rc1 Qb8 gives White command of the c-file and a tremendous advantage in space.
        • 21.Qc3!? Nf8! 22.Rc2 Qd7 23.Qd3 Rc8 24.Rxc8 Qxc8 is equal.

    19...Rc8!?

    • Black takes the file, but cannot hold it this way. White should still have a slight advantage.
    • If 19...Be7 then:
      • 20.Kh2 Rc8 21.Rg1 Bf8 22.Rac1 Nb8 23.Rxc8 Qxc8 24.Rc1 Nc6 is equal.
      • 20.Rac1 Nb8 21.Na1 Nc6 22.Nc2 Qd7 23.gxf5 Rxf5 24.Ne3 Rf7 is equal.

    20.Kh2!?

    • This simply allows Black to correct her mistake from his previous move.
    • 20.Rac1! Rxc1 21.Rxc1 g5 22.Kh2 Kg7 23.Qe2 gives White a slight advantage.

    20...Be7!

    • The game is equal.

    21.Rg1 Nf8

    • 21...Bf8 22.Rac1 Nb8 23.Rxc8 Qxc8 24.Rc1 Qd8 25.Kg3 remains equal; although White has advanced her King on the third rank, a King and pawn ending would be a likely draw.

    22.Rg3

    • If 22.Rac1! then:
      • If 22...Rc7 23.Rxc7! Qxc7 then:
        • If 24.Nc1! Bh4 25.Ne2 Qd7 26.Ng3 Bxg3+ 27.Kxg3 Ng6 remains equal.
        • 24.Rc1!? Qd7 25.Nc5 Bxc5 26.dxc5 Qc6 27.Kg3 Ng6 gives each side a passed pawn, but Black has already set up a blockade.
      • 22...Rxc1 23.Nxc1! Qd7 24.Ne2 Bh4 25.Ng3 Bxg3+ 26.Kxg3 remains equal.
    • The imporance of keeping the c1 file clear for use by the Knight in the above Fritz-furnished variations is to prevent the Knight from becoming a liability on b3 with no good squares to which to move.

    22...Rc7 23.Rag1

    • If 23.Rc1 Rxc1 24.Nxc1 then:
      • 24...Kh7 25.Rg1 Ng6 26.Qg3 Qe8 remains equal.
      • 24...b5!? 25.Rg1! Qc8 26.b3 fxg4 27.hxg4 gives White a slight advantage in space.

    23...Bh4!?

    • Black wastes a tempo chasing a Rook that is just a well placed at g2 as g3.
    • Better is 23...Qd7 (hitting the uncovered square a4) 24.Rc1 when:
      • 24...Qc8 25.Rxc7 Qxc7 26.Rg1 remains equal.
      • 24...Rxc1 25.Nxc1 Qa4 26.Ne2 Bb4 remains equal.


    BLACK: Valentina Gunina




    WHITE: Natalia Pogonina
    Position after 23...Be7h4


    24.R3g2!

    • White takes a small advantage in space.
    • 24.Rf3 Qe7 25.Rff1 Qd8 26.Nc5 Be7 27.b4 gives White a durable advantage in space with better chances of breaking through her opponent's position.
    24...Qc8 25.Bc3?!

    • Somewhat better is 25.Nc5, cutting the c-file even shorter and attacking two weak pawns.
    • If 25.Nc5 Be7 26.gxf5 Bxc5 27.fxe6 Qxe6 28.dxc5 gives White an extra pawn.

    25...Ng6!

    • Black puts pressure on White's f-pawn.

    26.Qe3!?

    • Since the Queen is well placed at d3, White should cover the pawn with 26.Rf1.
    • If 26.Rf1 Qe8 then:
      • 27.Bd2 Nf8 28.Bb4 Be7 29.Bxe7 Qxe7 30.Nc5 gives White a small advantage.
      • 27.Nc5 Bd8 28.Bd2 Nh4 29.Rgg1 Rc6 30.Be1 gives White a small advantage.

    26...Ne7!

    • The game is equal.

    27.Nd2!?

    • The Knight should go forward to c5, where it blocks the c-file controled by Black. The Knight has little future on the kingside.
    • If 27.Nc5 fxg4 28.hxg4 g5 then:
      • 29.fxg5 Bxg5 30.Qd3 Rxc5 31.dxc5 Qxc5 32.b4 remains equal.
      • 29.f5 exf5 30.e6 Rf8 31.Kh1 Qd8 32.Nd7 f4 remains equal.

    27...fxg4!

    • Black has a small advantage in space.

    28.hxg4 g5 29.f5?!

    • White allows Black to obtain connected passers.
    • If 29.fxg5 Bxg5 30.Qd3 Qf8 31.Bb4 Rf2 32.Kh1 Kg7 continues to give Black a small advantage.

    29...exf5!

    • Black takes advantage of White's inaccuracy.

    30.e6

    • If 30.gxf5 then 30...Rxf5 31.Kh1 Qf8 32.Qd3 Ng6 33.Rh2 Rc6 leaves White with an extra pawn and connected kingside passers.

    30...Rf6?!

    • Black doesn't need to be in any hurry to take the pawn.
    • Better is 30...Rf8! when 31.gxf5 Nxf5 32.Qe5 Re7 33.Qxd5 Qxe6 leaves White with an extra pawn and connected kingside passers.

    31.gxf5!

    • Black still has a comfortable game with virtually an extra pawn (White's pawn at f5 is dead wood) and two connected passers on the kingside, but White's passed pawnat e6 is a bone in Black's throat.

    31...Rc6

    • Black has ways to blow her winning chances.
    • If 31...Nxf5?! then 32.Qe5! Rxc3 33.bxc3 Qxe6 34.Nf3 gives White more freedom and activity in compenstion for Black's two extra pawns.

    32.Qh3 Nxf5 33.Nf3 Rcxe6?!

    • Black throws away a likely win.
    • If 33...Kh8 34.Bd2 Qxe6 35.Nxg5 hxg5 36.Bxg5 Rg6 gives Black an extra piece.


    BLACK: Valentina Gunina




    WHITE: Natalia Pogonina
    Position after 33...Rc6e6:p


    34.Nxh4!

    • The game is equal; White has a piece for two pawns.

    34...Qc7+

    • 34...Nxh4?! 35.Qxh4! Qc7+ 36.Kh1 Qf4 37.Qh5 then:
      • 37...Qf3 38.Qxf3 Rxf3 39.Rc1 Rf4 40.Kg1 gives White active pieces and an extra piece for just two pawns; Black also active Rooks.
      • If 37...Re3?? 38.Rxg5+!! hxg5 39.Rxg5+ then:
        • 39...Qxg5 40.Qxg5+ Kf7 41.Qxe3 leaves Black kaput.
        • 39...Kf8 40.Bb4+! Rd6 41.Bxd6+ Qxd6 42.Qh8+ Ke7 43.Rg7+ leades to mate.

    35.Kh1 Re3 36.Nf3 Qf4

    BLACK: Valentina Gunina




    WHITE: Natalia Pogonina
    Position after 36...Qc7f4


    37.Nxg5!!

    • The sacrifice is the only move.
    • If 37.Rf1? then Black wins after 37...Nh4 38.Rg4 Rxf3 39.Rxf3 Qxf3+ 40.Qxf3 Rxf3.

    37...hxg5

    • If 37...Rxh3+?? 38.Nxh3+ Ng3+ 39.Rxg3+ then:
      • 39...Qxg3 40.Rxg3+ Kh7 41.Kg2 leaves White two pieces to the good.
      • If 39...Kh7 then 40.Rg7+ Kh8 41.Rg8+ Kh7 42.R1g7#.

    38.Rxg5+ Kf8??

    • There is a big, big difference between putting the King on the second rank and the back rank now.
    • If 38...Kf7 39.Qh7+ Ke6 40.Qg8+ Kd7 41.Qxd5+ Kc7 42.Rh5 remains equal.

    39.Rg8+!

    • Suddenly, Black is lost. Apart from that, the most devastating this about the move is that it gets the Rook into action. That doesn't happen after 38...Kf7 because g7 in unavailable for White.

    39...Ke7 40.Bb4+ Kd7 41.R1g7+ Kc6

    • If 41...Re7 then 42.Rxe7+ Kc6 43.Rc8+ Kb5 44.Rc5+ Kxb4 45.Qa3#.

    42.Rc8+ Kb5 43.Rxb7+ Ka4 44.b3+ Kxb3

    • Black can no longer escape mate, but she's lost even without an immediate mate in the air.
    • 44...Rxb3 45.Qxb3+ Kxb3 46.Bd6+ leaves White a piece to the good.


    BLACK: Valentina Gunina




    WHITE: Natalia Pogonina
    Position after 44...Ka4b3:p


    45.Rc3+

    • No matter how Black gets out of check, the King march to doom continues.

    45...Ka2

    • If 45...Rxc3 then 46.Qxc3+ Ka2 47.Qc2+ Ka1 48.Bc3#.

    46.Qg2+ 1-0

    • White soon delivers mate.
    • Valentina Evgenyevna resigns.


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    Response to Jack Rabbit (Reply #2)

    Sun Sep 9, 2012, 02:03 PM

    19. Karjakin - Alekseev, Round 7




    Sergey Karjakin
    Photo by Stefan64 (http://commons.wikimedia.org/wiki/User:Stefan64) from Wikimedia Commons (http://commons.wikimedia.org/wiki/Category:Sergey_Karjakin)
    (Creative Commons License, Attribution/Share Alike)


    Sergey Karjakin - Evgeny Alekseev
    Russian National Championship, Round 7
    Moscow, 10 August 2012

    East India Game: Nimzo-Indian Defense (Capablanca Opening)


    1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 0-0 5.a3 Bxc3+ 6.Qxc3 d6 7.Nf3 Re8

    • For moves up to here, see Bacrot-David, French ChT, Mulhouse, 2011.
    • For what follows 7...Nbd7 8.e3 b6Koneru-A. Muzychuk, Euro Club CupW, Ohrid, 2009 and subordinate lines in the Bacrot-David game.

    8.g3 Qe7 9.b4 (N)

    • 9.Bg2 e5 10.dxe5 dxe5 11.0-0 a5 12.Be3 a4 is equal (Firsov-Shmakov, Zheleznogorsk Ch, 2007).

    9...e5

    • The game is equal.

    10.dxe5 dxe5 11.Bb2

    • 11.Bg2 Nc6 12.0-0 Bg4 13.Be3 a6 14.Rad1 h6 remains equal.

    11...Nc6 12.Bg2!?

    • White should play this, but there will be time later; first, he should play aggressively against Black's weak points.
    • If 12.b5 e4 13.Nd2 Ne5 14.Bg2 Bf5 15.0-0 remains equal.

    12...Nd4!

    • Black finds some forcing moves that leaves White feeling discomfort in the e-file.

    13.Nxd4 exd4

    • Black is a pawn to the good. The pawn at d4 is protected by nothing less than the threat of mate at e2.
    • Fritz rates the game as equal, but we see no reason not to call it a small advantage for White.

    14.Qd2 Bg4 15.f3 Be6!?

    • Black blocks his own attack on the backward e-pawn and leaves his d-pawn exposed
    • If 15...d3 16.Qxd3 Rad8 17.Qc2 Qe3 18.Bc1 remains equal.


    BLACK: Evgeny Alekseev




    WHITE: Sergey Karjakin
    Position after 15...Bg4e6


    16.Bxd4!

    • White gets a moment to breathe and finds he has a small advantage in space.

    16...Bxc4 17.e4 Nd7

    • 17...Rad8 18.Qc3 Qe6 19.Kf2 Rd7 20.e5 Nh5 21.Rhe1 continues to give White a small advantage in space.

    18.Qc3 b5 19.Bxg7!?

    • It certainly isn't too early to go pawn huunting and this capture weakens Black's King position. However, it also allows Black to chip away at White's spatial advantage and White's King safety is becoming a concern.
    • If 19.Kf2 then:
      • If 19...Rad8 then:
        • 20.Bf1 c5 21.bxc5 Nxc5 22.Bxc4 bxc4 23.Qxc4 gives White a small advantage; Black should play 23...Rc8 in order to maintain his presence on c5.
        • If 20.Rhd1 c5 then:
          • 21.Be3 h5 22.h4 a6 23.Rac1 f5 24.Bg5 gives White the initiative and a slight advantage in space.
          • 21.Bxg7!? Qg5 22.Bh3 Be6 23.Bxe6 fxe6 24.Rd2 cxb4 is equal.
      • If 19...g6 20.Rhd1 c5 then:
        • 21.bxc5 Nxc5 22.Bf6 Qc7 23.Kg1 Rac8 24.Rab1 gives White better activity for his pieces; Black has a distant pawn majority.
        • If 21.Be3 a5 then:
          • 22.bxa5 Ne5 23.Kg1 Red8 24.Rxd8+ Rxd8 25.Rb1 gives White an extra pawn and Black more space.
          • 22.bxc5?! Nxc5 23.Bh3 Na4 24.Qd4 Red8 25.Bd7 gives White a slight advantage in space
    • If 19.Bf1 Bxf1 20.Kxf1 f5 21.Qb3+ then:
      • 21...Kh8 22.exf5 Qe2+ 23.Kg1 Ne5 24.Bxe5 Qxe5 25.Kg2 continues to give White a small advantage.
      • 21...Kf8 22.Kg2 fxe4 23.Rac1 Qe6 24.Qxe6 Rxe6 25.Rxc7 gives White a clear advantage with the Rook on the seventh rank.


    BLACK: Evgeny Alekseev




    WHITE: Sergey Karjakin
    Position after 19.Bd4g7:p


    19...f5!

    • Black takes advantage of White's neglect of his King safety.
    • Also good is 19...Rad8! 20.Bf1 f6 21.Bh6 Ne5 22.Kf2 f5 with equality.

    20.Bh6!?

    • White continues to neglect his King safety.
    • If 20.0-0-0 then:
      • 20...a5 21.bxa5 Nc5 22.Bf6 Qf7 23.e5 Rxa5 reamins equal.
      • 20...Qxg7? 21.Qxg7+! Kxg7 22.Rxd7+ Kf8 23.e5 gives White a Rook on the seventh ranki that is simultaneously attacking two loose pawns, a masked attack on the Rook at a8 and a passer aty e5.

    20...fxe4!

    • Black has a slight advantage in space.

    21.0-0-0 a5

    • If 21...c5 22.Qg7+ Qxg7 23.Bxg7 then:
      • 23...Nb6 24.bxc5 Kxg7 25.cxb6 axb6 26.Kb2 b4 continues to give Black the advantage.
      • 23...Kxg7?! 24.Rxd7+ Kf8 25.bxc5 exf3 26.Bxf3 Rac8 27.c6 gives White a clear advantage.

    22.bxa5 Nc5 23.Bf1 Nb3+!?

    • Black misses a chance to give the White King a case of clostrophobia.
    • If 23...Ba2! then:
      • 24.Be3 Na4 25.Qb4 c5!! 26.Qxb5 Qg7 27.Qxa4 Qc3+ forces the exchange of Queens, leaving leaving the pawns in the a-file defenseless.
      • If 24.Qb2 Be6 then:
        • 25.f4 e3 26.f5 Nb3+ 27.Kb1 Nd2+ 28.Rxd2 exd2 gives Black a material advantage and an assortment of dangerous pawns.
        • e3 26.f5 Nb3+ 27.Kb1 Nd2+ 28.Rxd2 exd2 gives Black a material advantage and an assortment of dangerous pawns.
        • 25.Re1? allows Black to penetrate on the a-file with devastating effect after 25...Rxa5! 26.Kb1 Rea8 27.Re3 Rb8 28.fxe4 b4.

    24.Kb1!

    • The game is equal.

    24...Nxa5 25.Bc1 Qe5 26.Qxe5 Rxe5 27.fxe4

    • 27.Bf4 Ree8 28.fxe4 Rxe4 29.Bxc7 Re3 30.Kb2 Rb3+ remains equal; after White's a=pawn falls, Black's b-pawn will be as much a liability as an asset.

    27...Bxf1!?

    • Take is a mistake. -- Igor Smirnov
    • Black allows White to bring his King's Rook into the action.
    • Correct is 27...Rxe4 28.Rd7 c6 29.Rc7 Be2 30.Bxe2 Rxe2 31.Bb2 with continued equality.


    BLACK: Evgeny Alekseev




    WHITE: Sergey Karjakin
    Position after 27...Bc4f1:B


    28.Rhxf1!

    • Of course.

    28...Nc4 29.Rd7 Rxe4!?

    • Black has a choice of teo pawns to take. He picks the wrong one.
    • If 29...Nxa3+ 30.Bxa3 Rxa3 31.Rff7 Rh5 32.Rfe7 Rf3 33.h4 continues to give White a small advantage with better coordinated Rooks; Black has two connected passers, but one is almost dead wood.

    30.Rff7!

    • White has two Rooks on the seventh rank; Black pawns will fall.

    30...Nxa3+ 31.Bxa3 Rxa3 32.Rg7+ Kh8

    • If 32...Kf8 33.Rxh7 Rb4+ 34.Kc1 then:
      • 34...Ke8 35.Rxc7 Rc4+ 36.Kb2 Rxc7 37.Rxc7 Rd3 38.Rc3
      • 34...Ra1+? 35.Kd2 Kg8 36.Rdg7+ Kf8 37.Rxc7 Kg8 38.Rcg7+ gives White some serious mating possibilities that Black will avoid only with great care.

    33.Rxh7+ Kg8 34.Rdg7+

    • If 34.Rxc7 then:
      • 34...Re1+ 35.Kb2 Rf3 36.Rh6 Ree3 37.Rhc6 b4 38.Rc8+ gives White only a small advantage.
      • 34...Rc4?! 35.Rcg7+! Kf8 36.Rb7 Kg8 37.Rhg7+ Kf8 38.Rgd7 puts White on the brink of winning.

    34...Kf8 35.Rxc7

    • White has a comfortable game with an extra pawn and two Rooks marauding the seventh rank.

    35...Rb4+

    • Black's best course of action is to exchange one Rook.
    • If 35...Kg8?! 36.Rcg7+! Kf8 37.Rb7 Kg8 38.Rhd7 Re1+ 39.Kb2 gives White a strong advantage. Must play a Rook to a place where a back rank mate can be blocked on the following move.

    36.Kc2 Rc4+ 37.Kb2 Rxc7

    • The text move is forced. Anything else loses immediately.

    38.Rxc7 b4

    BLACK: Evgeny Alekseev




    WHITE: Sergey Karjakin
    Position after 38...b5b4


    • White clearly wins any King-and-pawn ending. Black must therefore keep his Rook on the board and his b-pawn safe. White will be happy to exchange Rooks unless the Black King is able to capture one of White's pawns with letting the other get ahead of it. The best way to prevent this is to not advance the pawns prematurely and always keep the pawns in an echalon formation.

    39.Kb1!?

    • The best plan is to attack the pawn laterally.
    • If 39.Rc4! Rd3 40.Kc1 Rb3 41.Rc2 Ke7 42.Rb2 then:
      • If 42...Rf3 43.Kb1 then:
        • 43...Rf1+ 44.Ka2 Rf8 45.Rxb4 allows White to shift his concern to making progress with his pawns.
        • 43...b3 44.Rd2 Kf6 45.Kb2 Kg5 46.Ka3 Kg4 47.Rb2 Re3 48.Rxb3 wins the pawn.
      • If 42...Rc3+ 43.Kb1 Rc4 44.Ka2 then:
        • If 44...Re4 45.Kb3 Kd6 46.Rf2 then:
          • If 46...Kd5 47.Rf5+ Kc6 48.Rf4 Re2 49.Rc4+ then:
            • 49...Kd6 50.Rh4 Kc5 51.Rh5+ Kd4 52.g4 Rg2 53.h3 allows White to take the pawn on the next move.
            • If 49...Kd5 50.Rh4 then:
              • 50...Ke5 51.Kxb4 Rb2+ 52.Kc4 Ra2 53.Kd3 leaves Black with a winning advantage.
              • 50...Rg2 51.Kxb4 Ke5 52.g4 Kf6 53.h3 Rg3 54.Rh5 should be enough for Black to win.
        • 46...Ke5 47.Rd2 Kf5 48.Rb2 Kg4 49.Ka4 Kh3 50.Rxb4 White's pawn will triumph.
      • 44...Ke6 45.Kb3 Re4 46.Ka4 Kf5 47.Rxb4 should be enough for White to win; if Black exchanges Rooks, which he should not, then the King cannot capture the hindmost pawn without giving the foremost an unobstructed path to the queening square.
    • If 39.Rb7?! Rd3! then:
      • 40.Rh7 Re3 41.Rh5 Ke7 42.Rc5 Kd6 43.Rc2 continues to give White a small advantage.
      • 40.Rxb4? Rd2+! 41.Ka3 Rxh2 42.Rg4 Rh5 draws.

    39...Rb3+ 40.Kc1 Ra3?

    • The Rook will have more freedom if it plays to the long side of the pawn.
    • 40...Rf3 41.Rd7 Ke8 42.Rd2 Ke7 43.Kb1 Re3 44.Rb2 gives White a strong game, but the b-pawn isn't going to fall yet.
    • 40...Ke8 41.Rc2 Kd7 42.Rb2 Rc3+ 43.Kb1 Rc4 44.Rd2+ leaves the b-pawn present for mow.
    • 40...Re3? 41.Rc4 Rb3 42.Rc2 Re3 43.Rb2 b3 44.Rd2 allows the Black pawn no further progress and its capture is imminent.

    41.Rc2!

    • Black's pawn is doomed.
    • If 41.Kb2?! Rf3 42.Rc4 then:
      • 42...Ke7 43.Re4+ Kf6 44.Re2 Kf5 45.Ka2 Ra3+ gives Black chances to hang on.
      • If 42...b3?? then White wins after 43.Rf4+!.


    BLACK: Evgeny Alekseev




    WHITE: Sergey Karjakin
    Position after 41.Rc7c2


    41...Kg7

    • If 41...Ke7 42.Rb2 then:
      • If 42...Rc3+ 43.Kb1 Rc4 44.Ka2 then:
        • If 44...Rd4 45.Kb3 Kd6 46.Rf2 Re4 47.Rf4 Re2 48.Rh4 then:
          • 48...Rg2 49.Kxb4 wins the pawn.
          • 48...Kc5 49.Rh5+ Kd4 50.Kxb4 wins the pawn.
        • If 44...Kd6 45.Kb3 Re4 46.Rc2 Kd7 then:
          • 47.Rc4 Re2 48.Rh4 Rg2 49.Kxb4 wins the pawn.
          • 47.Ka4 Ke6 48.Rb2 b3+ 49.Kxb3 wins the pawn.
      • 42...Rf3 43.Kb1 Rf1+ 44.Ka2 Rf3 45.Rxb4 wins the pawn.
    • If 41...Ra1+? 42.Kb2 Ra3 43.Rc4 then:
      • If 43...Re3 44.Kc1 Re1+ 45.Kd2 then:
        • If 45...Rh1 46.Rh4 Ke7 47.Kd3 Rb1 48.Re4+ then:
          • 48...Kf6 49.Kc2 Rh1 50.h4 Rh2+ 51.Kb3 Rh3 52.Rg4 leaves Black no way to save the pawn.
          • 48...Kf7 49.Kc2 Rh1 50.h4 wins the pawn as in the red variation.
        • If 45...Ra1 46.Rc2 Ra3 47.Rb2 Kg8 48.Kc1 then:
          • If 48...Rf3 then:
            • 49.Kb1 b3 50.Re2 Kf7 51.Kb2 Kg6 52.Ka3 wins the pawn.
            • 49.Rxb4?? Rf1+! 50.Kd2 Rf2+ 51.Ke3 Rxh2 52.Rg4+ Kf7 53.Kf3 is a book draw.
          • If 48...Rc3+ 49.Kb1 Rf3 50.Rxb4 wins the pawn.
      • If 43...Rd3 44.Kc1 then:
        • 44...Rb3 45.Rc2 Ke7 46.Rb2 Rc3+ 47.Kb1 wins the pawn.
        • If 44...b3 45.Rf4+ Ke7 46.Rf2 Ke6 then:
          • 47.Rd2 Re3 48.Kb2 Rf3 49.Ka3 Kf5 50.Rb2 wins the pawn.
          • If 47.Re2+ then:
            • 47...Kf5 48.Kb2 wins the pawn with the sam maneuver that concludes the main variation.
            • If 47...Kd5 then the pawn falls after 48.Rd2 b2+ 49.Rxb2.
    • If 41...b3 then the pawn falls soon after 42.Rd2 Kf7 43.Kb2 Ra2+ 44.Kc3.

    42.Rb2!

    • This is easily the best move.

    42...Rf3

    • If 42...Rc3+ 43.Kb1 then:
      • If 43...Rc4 44.Ka2 Rc3 45.Rxb4 then:
        • 45...Kf6 46.Rf4+ Ke5 47.Kb2 Rc8 48.Rb4 Kf5 49.Rh4 wns.
        • If 45...Rc2+ then after 46.Rb2 Rc3 47.Rd2 Kf7 48.Kb2 Re3 49.Kc1 black must either allow the pawns to advance or exchange Rooks.
      • If 43...Rf3 then the pawn falls after 44.Rxb4 Rf1+ 45.Ka2 Rf2+ 46.Rb2.

    43.Kb1 b3 44.Re2 Kg6 45.Kb2 Kg5 46.Ka3 Kg4

    • If 46...b2+ 47.Kxb2 Kg4 48.Re4+ then:
      • If 48...Kf5 49.Rc4 Rf2+ 50.Rc2 then:
        • 50...Rf3 51.Kc1 Rd3 52.Rf2+ Kg5 53.Rf8 Kg4 54.Rf4+ wins.
        • If 50...Rf1 then White wins after 51.Rc5+ Kg4 52.Rc4+ Kf5 53.h4 Rf2+ 54.Kb3 Rf3+ 55.Rc3.
    • If 48...Kh3 then White wins after 49.Rh4+ Kg2 50.g4 Rf2+ 51.Kc3 when Black must take time to untangle his King and Rook.


    BLACK: Evgeny Alekseev




    WHITE: Sergey Karjakin
    Position after 46...Kg5g4


    47.Re4+!

    • White is now well on his way to victory.

    47...Kf5

    • If 47...Kh3 48.Rh4+ Kg2 49.Kb2 Rf1 then:
      • 50.g4 Kf3 51.Kxb3 Rf2 52.g5 Rg2 53.Rh5 followed by 54.h4 allows White's pawns to continue progressing toward their goal.
      • If 50.Kxb3 then 50...Rb1+ 51.Kc3 Kf3 52.Rh8 Rc1+ 53.Kd4 White may soon begin advancing his pawns.

    48.Rb4 Rf2 49.h4 Rg2 50.Rb5+ Ke4

    • Black's b-pawn falls.
    • 50...Kf6 51.Rxb3 Kg6 52.Rf3 Kh5 53.Rf5+ Kg6 54.Rg5+ almost forces the Black King to make a stand in the h-file.
    • If 50...Kg4?? then White wins after 51.Rg5+ Kf3 52.Kxb3 Ke4 53.h5.

    51.Rxb3

    BLACK: Evgeny Alekseev




    WHITE: Sergey Karjakin
    Position after 51.Rb5b3:p


    51...Rc2

    • 51...Rg1 52.Rb4+ Kf5 53.Rb5+ Kg6 54.Rg5+ almost forces the Black King to make a stand in the h-file.

    52.Rb4+ Ke5 53.Kb3 Rf2 54.Rb5+ Kf6 55.Kc4

    • 55.Rg5 Rd2 56.Kc3 Ra2 57.Kd3 Ra3+ 58.Ke4 cuts off the King from the White pawns and assures that the pawns will continue to march forward.

    55...Rg2 56.Rg5 Rd2 57.Rg8

    • If 57.Rg4 Rh2 58.Kd3 Ke5 59.Re4+ then:
      • 59...Kf5 60.Ke3 Rh1 61.Rc4 Rg1 62.Rc5+ Kf6 63.Kf4 is an easy win for White.
      • If 59...Kd5 then White wins after 60.Ke3 Rh1 61.Rb4 Ke5 62.Rb5+ Kf6 63.h5.

    57...Kf7 58.Rg4 Kf6

    • 58...Rh2 59.Kd4 Rb2 60.Ke4 Rb4+ 61.Kf3 Rb5 62.Rg5 allows White to make progress with his pawns.

    59.h5 Rh2

    BLACK: Evgeny Alekseev




    WHITE: Sergey Karjakin
    Position after 59...Rd2h2


    60.Rg6+!

    • This is White's only move to keep the advantage.
    • If 60.Rf4+? then Black draws after 60...Kg5! 61.h6 Rxh6 62.Rd4 Ra6 63.Rd5+ Kg4!.

    60...Kf7 61.g4 Rd2

    • Black's Rook cannot find sufficient checking distance to effectively menace White's King.
    • If 61...Re2 then:
      • If 62.Kd4 Re1 63.Kd5 Re2 64.g5 then:
        • If 64...Rf2 then White wins after 65.Ke5 Re2+ 66.Kf4 Re7 67.Rf6+.
        • If 64...Rg2 65.Ke5 then:
          • If 65...Re2+ 66.Kf4 Rf2+ 67.Ke4 Rf1 68.Ra6 then:
            • 68...Rg1 69.Kf4 Rf1+ 70.Ke3 Re1+ 71.Kf2 Re8 72.Kf3 leaves White's connected passers slinking up the board.
            • If 68...Re1+ then White wins easily after 69.Kd5 Rg1 70.Ra7+ Kg8 71.g6 Rh1 72.Ke6.
          • If 65...Rg1 then White's connected passers triumph after 66.Kf4 Kf8 67.Rc6 Kg8 68.Kf5 Kf8 69.h6 when the White King can take shelter from the checks on g6.
      • 62.Kd3 Re8 63.Kd4 Re1 64.Kd5 transposes.

    62.Rg5 Rd1 63.Rd5 Rg1 64.Rf5+ Kg7 65.Rg5+ Kh6

    • No better is 65...Kf6 66.Rg6+ Kf7 67.Kd5 Re1 68.Kd4.

    66.Rg6+ Kh7 67.Kd5 Re1 68.g5

    • Also good is 68.Kd4 Kh8 69.Rc6 Kg8 70.Kd5 Rg1 71.Rg6+.

    68...Ra1

    • If 68...Rd1+ then White wins after 69.Ke4 Rh1 70.Ke5 Rg1 71.Kf6.

    69.Rc6 Rg1 70.Rc7+ Kg8 71.g6 Rg5+ 1-0

    • Evgeny Vladimirovich resigns without waiting for Sergey Alexandrovich to reply.

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    Response to Jack Rabbit (Reply #2)

    Sun Sep 9, 2012, 02:06 PM

    20. Ovod _ Gunina, Round 3

    Defending champion Valentina Gunina finished second this year.



    Valentina Gunina
    Uploaded to YouTube by EugenePotemkin


    Evgenia Ovod - Valentina Gunina
    Russian Women's Championship, Round 3
    Moscow, 5 August 2012

    Semi-Slav Queen's Gambit: Meran Defense (Lundin Variation)


    1.c4 c6 2.Nf3 d5 3.e3 Nf6 4.Nc3 e6 5.d4 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 b4 9.Ne4 Nxe4 10.Bxe4 Bb7 11.0-0 Bd6 12.a3 bxa3 13.Nd2 Qc7


    14.b3 (N)

    • 14.Nc4 Bxh2+ 15.Kh1 Nb6 then:
      • If 16.Nxb6 axb6 17.g3 Bxg3 18.fxg3 then:
        • 18...a2 19.Kg2 0-0 is equal (Stafansson-Sveshnikov, Ol, Khanty-Mansiysk, 2010).
        • 18...Qxg3 19.Qh5 Ra5 20.Qxf7+ Kd8 21.Bg2 gives White a piece for three pawns and the advantage in space (Kramnik-Shirov, Tal Mem, Moscow, 2008).
      • 16.b3 Nxc4 17.bxc4 Bd6 18.Qh5 g6 19.Qh6 Bf8 gives Black two extra pawns and the initiative (Nebolsina-Girya, Russian ChW, Moscow, 2010).

    14...Bxh2+

    • Black has a small advantage in space.
    • If 14...f5!? 15.Bf3! Bxh2+ 16.Kh1 Bd6 17.Bh5+ g6 18.Bf3 0-0 gives Black a slight advantage.

    15.Kh1 Bd6 16.Nc4 Be7!?

    • Black still enjoys a slight advantage with an extra pawn; White has more space.
    • 16...Bb4!? 17.Bxa3! Bxa3 18.Rxa3 0-0 19.Ra5 f5 gives Black an extra pawn for which White is compenated with more space.

    17.Bxa3!

    • The game is equal.

    17...Bxa3 18.Rxa3 0-0 19.Qa1!?

    • White feels secure enough in the center to entertain thought of nabbing the a-pawn.
    • 19.Ra5 f5 20.Bf3 Rf6 21.Re1 g5 22.g3 c5 is equal.


    BLACK: Valentina Gunina




    WHITE: Evgenia Ovod
    Position after 19.Qd1a1


    19...a6!?

    • This advance fortifies the a-pawn, but weakens Black's hold on b6.
    • 19...f5 20.Bf3 g5 21.Kg1 g4 22.Be2 c5 continues to give Black a small advantage in space.

    20.Na5!

    • The game is equal.

    20...f5 21.Bf3 Nf6 22.Rc1

    • 22.Kg1 Nd5 23.Rc1 Rf6 24.Nxb7 Qxb7 remains equal.

    22...Ng4 23.Kg1 Qh2+

    • 23...Rfc8!? 24.g3! Nf6 25.Qc3 Nd5 26.Qc5 g6 27.Nc4 gives White a small advantage in space.

    24.Kf1 Rab8 25.Rc5!?

    • White feels the need to restrain White's pawn.
    • Better is 25.Qc3 e5 26.dxe5 Nxe5 27.Nxb7 Rxb7 28.Bxc6 Nxc6 29.Qxc6 with equality. Tthe material balance level.


    BLACK: Valentina Gunina




    WHITE: Evgenia Ovod
    Position after 25.Rc1c5


    25...Ba8!

    • Black has a small advantage in space.

    26.Qc3

    • If 26.Ke2 then:
      • 26...e5 27.dxe5 Rb5 28.b4 Qh4 29.g3 Qh2 continues to give Black a small advantage given the coordination of her Queen and Knight.
      • 26...Rb5!? 27.Nxc6! Rxc5 28.dxc5 Bxc6 29.Bxc6 Qh4 is equal.

    26...Nf6!?

    • Black relieves the pressure on f2.
    • If 26...e5 27.dxe5 then:
      • If 27...Qh1+ 28.Ke2 Qh4 29.Qe1 then:
        • 29...Qe7 30.Qc1 Nxe5 31.Nxc6 Bxc6 32.Bxc6 Nxc6 33.Rxc6 f4 still gives Black a slight edge.
        • 29...Rb5!? 30.Rxb5! cxb5 31.Nc6 Bxc6 32.Bxc6 Nxe5 is equal.
      • 27...Rb5!? 28.Nxc6 Qh1+ 29.Ke2 Qg1 30.Rxb5 Qxf2+ 31.Kd3 is equal.

    27.Qc4!?

    • White misses a chance to finally get her pawn back.
    • 27.Nxc6 Bxc6 28.Rxc6 Ne4 29.Qc1 h5 continues to give Black a small advantage.

    27...Kh8!?

    • This is a prophylactic move that, as it turns out, comes in handy.
    • If 27...Rbe8! (directly protecting the e-pawn) 28.Re5 Nd5 then:
      • 29.Nxc6 Bxc6 30.Qxc6 Rc8 31.Qxe6+ Kh8 32.Rxf5 Qh1+ gives Black a small advantage in space.
      • If 29.b4?! Qh1+ 30.Ke2 Qb1 then:
        • 31.Rd3 Rb8 32.Qb3 Qxb3 33.Nxb3 Nxb4 34.Rd2 Kf7 gives Black a small advantage in space.
        • 31.Qb3?! Qc1 32.Bxd5 cxd5 33.Ra2 f4 34.Qd1 Qc7 gives Black an extra pawn and better command of open lanes.

    28.Qxe6?

    • Although it was actually a mistake, Black's prophylactic move now comes in handy. If this pawn capture were made with check, it could be quite devastating for Black.
    • Better is 28.Nxc6 Qh1+ 29.Ke2 Bxc6 30.Rxc6 Ne4 31.Qc1 Qh4 with equality.


    BLACK: Valentina Gunina




    WHITE: Evgenia Ovod
    Position after 28.Qc4e6:p


    28...Rbe8!

    • Black prepares to make life miserable for the White Queen in the center and the King in its camp.

    29.Qxf5

    • If 29.Qc4 then Black wins quickly after 29...f4 30.Ke2 fxe3 31.fxe3 Nd5 32.Qc1 Nf4+.

    29...Qh1+ 30.Ke2 Nd5 31.g3

    • This could be a harikari move.
    • If White wants to endure slow torture, then 31.Qg4 Qg1 32.Nc4 Nf4+ 33.Kd2 Qxf2+ 34.Kd1 Nd3 will accommodate.


    BLACK: Valentina Gunina




    WHITE: Evgenia Ovod
    Position after 31.g2g3


    31...Rxe3+!!

    • The Rook sacrifice is the harbinger of the end.

    32.fxe3 Qh2+ 33.Kd3

    • If 33.Kd1 loses immediately to 33...Nxe3+, winning the Queen.

    33...Rxf5 34.Be4

    • If 34.Bxd5 Qb2 35.Nc4 Qb1+ then:
      • 36.Kc3 Qe1+ 37.Kd3 Qf1+ 38.Kc3 cxd5 39.Nd6 Rf8 gives White a Queen against a Rook.
      • If 36.Ke2 then Black wins after 36...Qf1+ 37.Kd2 Rf2+ 38.Kc3 Qe1+ 39.Kd3 Qc1 .

    34...Rf1 35.Bxd5 Rd1+ 36.Ke4 cxd5+ 37.Kf5 Rf1+ 38.Ke6 Rf8

    • White's King is in a mating net.
    • Evgenia Ovod resigns.

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    Response to Jack Rabbit (Reply #1)

    Mon Sep 3, 2012, 04:42 PM

    5. Biel Chess Festival, Grandmaster Tournament



    Biel
    Photo by GoodRJ in Wikimedia Commons (http://en.wikipedia.org/wiki/File:CH_Biel_Altstadt-5.JPG)
    (Creative Commons License, Attribution/Share Alike)

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    Response to Jack Rabbit (Reply #5)

    Mon Sep 3, 2012, 04:45 PM

    6. Wang Hao - Giri, Round 10

    Wang Hao persevered to win the Biel Chess Festival in spite of losing both his game against runner up Magnus Carlsen.



    Wang Hao
    Photo by Datti4 in Wikimedia Commons (http://commons.wikimedia.org/wiki/File:Wang_Hao_%28chess%29.JPG)
    (Public Domain)


    Wang Hao - Anish Giri
    Biel Chess Festival, Round 10
    Biel, 2 August 2012

    West India Game: Indian Queen's Gambit (Russian Opening)
    (Grünfeld Defense)


    1.Nf3 Nf6 2.c4 g6 3.Nc3 d5 4.Qa4+ Bd7 5.Qb3 dxc4 6.Qxc4 a6 7.d4 b5

    • The position after 7...Bg7 8.e4 often arises out of the Russian Opening to the Indian Queen's Gambit (Grünfeld Defense). See Pashikian-Kurnosov, Aeroflot Op, Moscow, 2009.

    8.Qb3 c5?!

    • The pawn sacrifice has been palayed with good results for Black.
    • Safer is 8...Nc6 when:
      • If 9.Bf4 Bg7 10.e3 0-0 11.Be2 Be6 12.Qd1 then:
        • 12...Nd5 13.Nxd5 Bxd5 14.0-0 Qd7 15.Qc2 f5 16.a4 gives White a comfortable game regardless of whther White takes on a4 or keeps the queenside closed (Roussel Roozman-Barbeau, IT, Montreal, 2006).
        • 12...Nh5 13.Be5 Nxe5 14.Nxe5 c5 15.Bxh5 cxd4 16.exd4 remains equal.
      • If 9.Bg5 then:
        • 9...Be6 10.Qd1 Bg7 11.e3 0-0 12.Be2 Nd5 13.Ne4 is equal (Navara-Svidler, IT A, Wijk aan Zee, 2007).
        • 9...h6 10.Bxf6 exf6 11.Rd1 Bd6 12.g3 0-0 13.Bg2 is equal (Chucelov-P. Popovic, Bundesliga 0607, Germany, 2007).


    BLACK: Anish Giri




    WHITE: Wang Hao
    Position after 8...c7c5


    9.dxc5! Bg7 10.e4 0-0

    • If 10...Be6 11.Qc2 Nc6 12.Be2 0-0 13.0-0 Qc7 then:
      • If 14.h3 Nb4 15.Qb1 Qxc5 then:
        • If 16.Be3 Qc8 17.Rc1 then:
          • 17...Nc6 18.Nd4 Nxd4 19.Bxd4 Qb8 20.Rd1 Rd8 21.e5 is equal (Peng-Nepomniachtchi, IT C, Wijk aan Zee, 2007).
          • 17...Qb7 18.Nd4 Bc4 19.a3 Nc6 20.Nxc6 Qxc6 21.Bf3 gives White the initiative and a small advantage in space; the threat is 22.e5!. (Piket-Avrukh, IT, Biel, 1999).
        • 16.a3 Nc6 17.Be3 Qd6 18.Rd1 Qb8 19.Nd5 is equal (Volkov-Khalifman, Russian ChT, Sochi, 2005).
      • If 14.a3 then:
        • If 14...b4 15.axb4 Nxb4 16.Qa4 a5 then:
          • 17.Nd4!? Ng4! 18.Bxg4 Bxg4 19.Be3 Rfd8 20.Nde2 Bd7 21.Qd1 is equal (Cychov-Vachier Lagrave, Aeroflot Op, Moscow, 2008).
          • 17.Be3 Ng4 18.Nb5 Qb7 19.Bd4 Bd7 20.h3 Nf6 21.Ne5 gives White a small advantage in space.
          • 17.Bb5 Rfc8 18.Ng5 Bd7 19.Qb3 e6 20.Rd1 Rd8 21.Bxd7 gives White a small advantage in space.
      • If 14...Rad8 15.g3 Qa7 16.b4 Nxe4 17.Bb2 Nxc5 18.bxc5 Qxc5 19.Rad1 b4 is equal (Werle-Vachier Lagrave, IT B, Wijk aan Zee, 2007).
      • 17...Nf6 18.Ne4 Nxe4 19.Bxg7 Kxg7 is equal.

    11.Be2 Be6

    • If 11...Bc6 12.e5 Nfd7 13.Be3 then:
      • If 13...Nxe5 14.Nxe5 Bxe5 15.0-0 then:
        • 15...Qc7 16.f4 Bg7 17.Rad1 e6 18.Qc2 Qb7 19.Rf2 gives White a small-to-fair advantage in space (Tkachiev-Sutovsky, IT, Poikovsky, 2007).
        • 15...e6 16.a4 bxa4 17.Nxa4 Qc7 18.f4 Bg7 19.Nb6 gives White the initiatve and a fair advantage in space (Gelfand-Svidler, Tal Mem, Moscow, 2006).
      • 13...e6 14.0-0 Nxe5 15.Ng5 Qe7 16.Nge4 Nbd7 17.f4 gives White a fair advantage in space.

    12.Qc2 Nbd7

    • If 12...Qc7 13.Nd4 then:
      • If 13...Bc4 14.Be3 then:
        • If 14...Bxe2 15.Qxe2 Rd8 then:
          • 16.0-0?! b4 17.Na4 Nxe4 18.Qf3 draw (Sosonko-Ribli, IT, Amsterdam, 1974).
          • If 16.f3! b4 17.Na4 Nxe4 then:
            • 18.Nb6 Ra7 19.Nb3 Nf6 20.Rd1 Rxd1+ 21.Qxd1 gives White a comfortable game.
            • 18.fxe4?! Bxd4 19.Bxd4 Rxd4 20.Nb6 gives WBlack a slight advantage in space.
        • 14...Rd8 15.Rd1 e5 16.Nb3 Nc6 17.0-0 Bxb3 18.axb3 give and extra pawn (passed) and a slight advantage in space; Black has stronger pawns (Praszak-Tseintlin, Op, Gdynia, 1989).
      • 13...Qxc5 14.Nxe6 fxe6 15.Be3 Qc6 16.Rc1 Nbd7 17.0-0 gives White better pawns and more space (Conquest-Hünerkopf, Bundesliga 8788, Germany, 1987).

    13.Be3 Rc8 14.Rd1

    • If 14.c6 Rxc6 15.Nd4 Rd6 then:
      • If 16.Nxe6 Rxe6 then:
        • If 17.f3 Qa5 18.0-0 then:
          • If 18...Rc8 19.Rfd1 Nb6 20.Qb3 Nfd7 then:
            • 21.Nd5?! Nxd5 22.exd5 Rxe3 23.Qxe3 Bxb2 24.Rab1 Ba3 gives Black a slight advantage in space (Braun-Bobras, Bundesliga 0809, Germany, 2008)
            • 21.a4 Bxc3 22.axb5 Qb4 23.Qxb4 Bxb4 24.bxa6 gives White two passed pawns for a piece, one of which is advanced and dangerous.
          • 18...b4 19.Nd1 Nb6 20.Nf2 Nfd7 21.Nd3 Rb8 22.Kh1 gives White a small advantage in space (Wojtaszek-Piorun, Polish Ch, Warsaw, 2010).
        • 17.0-0 Qc8 18.Rac1 Nxe4 19.Nxe4 Qxc2 20.Rxc2 Rxe4 is equal (Tomashevsky-T. L. Petrosian, Euro ChT, Novi Sad, 2009).
      • 16.Rd1?! Ng4 17.Bxg4 Bxg4 18.f3 Ne5 19.Bf2 Nc4 gives Black a small advantage in space (Nakamura-Kamsky, US Ch, St. Louis, 2009).

    14...b4 15.Nd5

    • 15.Na4 Qa5 16.0-0 Nxe4 17.c6 Nd6 18.b3 Bd5 is equal (Onischuk-Svidler, IT, Foros, Ukraine, 2008).

    15...Bxd5 16.exd5 Nxc5 17.0-0 a5

    • If 17...Nce4 18.Qd3 then:
      • 18...Qd6 19.Qxa6 Rc2 20.Bd4 Nc5 21.Qxd6 gives White a small advantage in pawn structure and space (Jakovenko-Svidler, Russian Ch, Moscow, 2012).
      • 18...a5 19.Ne5 Qc7 20.f4 Qc2 21.Nc6 Qxd3 22.Nxe7+ yields an extra pawn to White; Black has some compensation in space (Sandipan-Svidler, Bundesliga 1011, Baden-Baden, 2010).

    18.Bb5

    • 18.Bc4 Qd6 19.Bd4 Ncd7 20.Qe2 Ng4 21.Rfe1 gives White a slight advantage in space (Aronian-Grischuk, Candidates' Match, Kazan, 2011).

    18...Nce4 19.Bc6 Qc7 (N)

    • If 19...Nd6!? 20.Qe2! Nf5 then:
      • 21.Rfe1?! Qc7! 22.Rc1 Ng4 23.Bc5 Nd4 24.Bxd4 Bxd4 25.Rf1 Bf6 draw (Bluvshtein-Mekhitarian, Aerofloat Op, Moscow, 2011).
      • If 21.Ne5 Qc7 22.f4 then:
        • 22...h5 23.Bf2 Ng4 24.Nxg4 hxg4 25.Qxg4 Bxb2 26.Qe2 gives White a slight advantage in space.
        • 22...Nxe3 23.Qxe3 Rfd8 24.h3 e6 25.dxe6 fxe6 26.Rfe1 gives White a small advantage in space.


    BLACK: Anish Giri




    WHITE: Wang Hao
    Position after 19...Qd8c7


    20.Rc1

    • White has a slight edge in space.

    20...Nd6 21.Qe2

    • 21.Qb3 Nf5 22.g3 Nxe3 23.Qxe3 Rfd8 24.Kg2 continues to give White a slight edge.

    21...Nf5 22.Bc5!?

    • White in one stroke double attacks the e-pawn, but relinquishes the f4 square that Black could use to place a Knight.
    • If 22.g3 Nxe3 23.Qxe3 then:
      • 23...Rfd8 24.Kg2 Ng4 25.Qe2 Ne5 26.Rc5 Nxf3 27.Qxf3 gives White a small advantage in space and Black better pawns.
      • 23...Ng4 24.Qe2 Ne5 25.Nxe5 Qxe5 26.Rfe1 Qxe2 27.Rxe2 continues to give White a slight advantage in space.

    22...Bh6!?

    • Black misses a chance to equalize. The moves costs a valuable tempo.
    • 22...Rfd8! 23.Qa6 Nd7 24.Qe2 Bh6 25.Rc2 Nxc5 26.Rxc5 is equal.

    23.Rc2!?

    • White misses a chance to gain more.
    • If 23.Rc4! Rfd8 then:
      • 24.Rd1 e6 25.Bd4 Qe7 26.dxe6 Qxe6 27.Qxe6 gives White a small advantage in space.
      • 24.Bd4!? Nd7 25.Re1 Qd6 26.h4 Nxd4 27.Rxd4 gives White a slight advantage.


    BLACK: Anish Giri




    WHITE: Wang Hao
    Position after 23.Rc1c2


    23...Rfd8!

    • The game is equal.

    24.Rd1 e6?!

    • This could be Black's most critical error in the game. It allows White to open the center and weakens Black's central pawns.
    • If 24...Bg7 then:
      • 25.Ne1 e6 26.g4 Ne7 27.Bxe7 Qxe7 28.dxe6 Qxe6 remains equal.
      • 25.Rc4!? e6! 26.Bd4 exd5 27.Bxd5 Qd7 gives Black a slight advantage in space.

    25.dxe6 Rxd1+

    • If 25...Qxc6?? then White wins after 26.exf7+! Kh8 27.Be7! Rxd1+ 28.Qxd1 Nxe7 29.Rxc6.

    26.Qxd1 fxe6 27.Ba4 Qd8?

    • White leaves the e-pawn unguarded.
    • 27...Qb7 28.Bb3 Ng7 29.Qd6 Nd5 30.Bd4 Bf4 31.Ne5 gives White domination of the center with his pieces trained on Black's King.


    BLACK: Anish Giri




    WHITE: Wang Hao
    Position after 27...Qc78d8


    28.Qe2!

    • There are a number of points in Black's position inadequately guarded. White attacks the low-hanging fruit.

    28...Ng7 29.Ne5 Ne4 30.Nc6 Rxc6

    • No matter how he plays, Black must lose a piece.
    • If 30...Qg5 then White wins after 31.Qxe4 b3 32.Bxb3 Re8 33.g3 Qf5 34.Qe1.

    31.Bxc6 Nxc5 32.Rxc5 1-0

    • Mh. Giri resigns.

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    Response to Jack Rabbit (Reply #5)

    Sun Sep 9, 2012, 10:48 PM

    23. Wang Hao - Carlsen, Round 7

    Magnus went through Biel scoring four wins without a single loss, but still had to settle for finishing runner up to a man he beat twice.



    Magnus Carlsen

    Photo by Stefan64 (http://commons.wikimedia.org/wiki/User:Stefan64) from Wikipedia
    (Creative Commons License, Attribution/Share Alike)


    Wang Hao - Magnus Carlsen
    Biel Chess Festival, Round 7
    Biel, 30 July 2012

    East India Game: Queen's Indian Defense (Catalan Opening)


    1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.b3 Bb7 6.Bg2 Bb4+ 7.Bd2

    • A more common way of getting to something like this is 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Bxd2+ 5.Qxd2 c6 6.g3 d5 7.Bg2 Nbd7. See Topalov-Carlsen, IT, Nanjing, 2010.

    7...c5

    • If 7...a5 8.0-0 0-0 9.Qc2 d6 then:
      • If 10.Nc3 Nbd7 then:
        • If 11.Rfe1 Bxc3 12.Bxc3 Be4 13.Qb2 then:
          • If 13...c6 14.Bf1 b5 then:
            • 15.Nh4 b4 16.Bd2 c5 17.a3 Qb6 18.axb4 axb4 19.f3 Bb7 20.Be3 draw (Vasquez-Milos, Pan-American Ch, Buenos Aires, 2003).
            • 15.Rac1 bxc4 16.bxc4 c5 17.Nd2 cxd4 18.Bxd4 Bc6 is equal (S. Bercys-Critelli, Op, Philadelphia, 2007).
          • 13...Re8 14.Nd2 Bxg2 15.Kxg2 c5 16.e4 cxd4 17.Bxd4 (Sosonko-Dorfman, Rubinstein Mem, Polanica Zdroj, 1993).
          • 13...a4 14.Bf1 Bb7 15.Nd2 c5 16.b4 is equal (Topalov-Adams, Rpd IT, Frankfurt, 2000).
        • If 11.Rfd1 then:
          • 11...Qe7 12.Ne1 Bxg2 13.Kxg2 c5 14.Nb5 d5 15.Nf3 is equal (K. Georgiev-Eljanov, Aeroflot Op, Moscow, 2006).
          • If 11...Bxc3 12.Bxc3 Be4 then:
            • If 13.Qc1 a4 14.Bh3 then:
              • 14...Qe7 15.Nd2 Bb7 16.Qc2 axb3 17.axb3 c5 18.Qb2 gives White a slight advantage in space (Karpov-Istratescu, Rpd Match Rd4, Bucharest, 2005).
              • If 14...axb3 15.axb3 Rxa1 16.Qxa1 then:
                • If 16...Qa8!? 17.Nd2! then:
                  • 17...Qxa1!? 18.Rxa1! Ra8 19.Rxa8+ Bxa8 20.f3 c5 21.e4 gives White a comfortable game (Bologan-Istratescu, IT, Poijkovsky, 2007).
                  • 17...d5 18.Qb2 Bf5 19.Bg2 Qb7 20.b4 b5 21.c5 gives White a samall advantage in space.
                  • 16...Qe7 17.d5 exd5 18.Bxd7 Qxd7 19.Bxf6 gxf6 20.cxd5 is equal.
              • If 13.Qb2 c6 14.Bf1 then:
                • If 14...b5 15.Nh4 d5 16.f3 Bg6 then:
                  • 17.Be1 Qb6 18.cxd5 cxd5 19.Rac1 Rfc8 20.e3 gives White a comfortable game (Karpov-Istratescu, Rpd Match Rd2, Bucharest, 2005).
                  • 17.Nxg6 hxg6 18.cxb5 cxb5 19.e3 Qb6 20.Be1 gives White a small advantage in space (Kempinski-Safarli, Euro Ch, Kusadasi, Turkey, 2007).
                • 14...h6 15.Ne1 d5 16.Nd3 Bh7 17.Rac1 Ne4 18.Be1 gives White a small advantage in space (Malakhatko-Safarli, Op, Baku, 2008).
      • If 10.Bc3 then:
        • If 10...d5 11.a3 Be7 then:
          • 12.Nbd2 Na6 13.Rfd1 Rc8 14.Ne5 c5 15.Qb2 gives White a small advantage in space (Tkachiev-Hamdouchi, FIDE Knock Out, Moscow, 2001).
          • 12.Bb2 Na6 13.cxd5 exd5 14.Nc3 Re8 15.Rfd1 gives White a small advantage (Cheparinov-Hellstein, Ol, Torino, 2006).
        • If 10...Nbd7 then:
          • If 11.a3 Bxc3 12.Nxc3 then:
            • If 12...Re8 13.e4 e5 then:
              • 14.Rad1 Rc8 15.Rfe1 Qe7 16.b4 axb4 17.axb4 c6 18.Qd2 draw (Dorfman-Zhong Zhang, Rpd IT, Cap d'Agde, 2000).
              • 14.d5 c6 15.Rfe1 Rc8 16.Rad1 cxd5 17.exd5 Ba6 is equal (Sachdev-Safarli, Op, Dubai, 2008).
            • 12...c6 13.e4 Qc7 14.Rfe1 e5 15.Rad1 Rfe8 16.Qb2 gives White a small advantage in space (Stefansson- Kristjansson, IT, Selfoss, 2002).
          • 11.Rd1 d5 12.a3 Be7 13.Bb2 Ne4 14.Nc3 gives White a small advantage in space (Tkachiev-Efimenko, IT, Coventry, England, 2005).

    8.0-0 0-0 9.Bc3

    • If 9.Bxb4 cxb4 then:
      • If 10.Qd3 d6 11.Nbd2 a5 12.e4 then:
        • 12...Nbd7 13.Rfe1 e5 14.Nh4 g6 15.Nf1 Re8 16.f3 is equal (Gelfand-Grischuk, World Blitz Ch, Rashon le Zion, Israel, 2006).
        • 12...e5 13.Ne1 Nc6 14.Nc2 Re8 15.Rfe1 Qc7 16.Rad1 is equal (Shirov-Grischuk, Rpd IT, Odessa, 2007).
      • If 10.a3 Na6 then:
        • If 11.Ne5 Bxg2 12.Kxg2 then:
          • If 12...d5 13.e3 Qc7 14.axb4 Nxb4 15.Na3 Qb7 then:
            • 16.Kg1!? Ne4 17.Qe2 draw (Karolyi-Kuligowski, IT, Brussels, 1986).
            • 16.f3 Rfd8 17.Nc2 Nc6 18.Nxc6 Qxc6 19.Nb4 gives White a small advantage in space.
          • 12...Qb8 13.Nd3 bxa3 14.Rxa3 Qb7+ 15.Kg1 d5 16.Nd2 (Hracek-Dorfman, Bundesliga 0102, Hamburg, 2001).
        • If 11.axb4 Nxb4 12.Nc3 Qe7 13.Qd2 then:
          • 13...Ne4 14.Nxe4 Bxe4 15.Ne5 Bxg2 16.Kxg2 gives White a small advantage in space (Mamedyarov-Carlsen, Tal Mem Blitz, Moscow, 2010).
          • 13...Rfd8 14.Ne5 Bxg2 15.Kxg2 d6 16.Nf3 d5 17.Rfc1 gives White a slim advantage in space (Arbakov-Balashov, Soviet Ch ½-final, Moscow, 1989).

    9...Na6

    • If 9...d5 10.cxd5 then:
      • If 10...Nxd5 11.Bb2 cxd4 12.Qxd4 Qf6 then:
        • 13.a3 Qxd4 14.Nxd4 Bc5 15.Nb5 Nc6 16.b4 gives White a comfortable game (Karpov-Korchnoi, IT, Biel, 1992).
        • 13.Ne5 Bc5 14.Qd2 Qe7 15.Nd3 Na6 16.a3 gives White a small advantage with the threat of 17.b4 (Tratar-Savon, Op, Ljubljana, 1992).
      • If 10...exd5 11.Bb2 Ne4 then:
        • 12.dxc5 bxc5 13.a3 Ba5 14.b4 Bb6 15.Nc3 gives White a small advantage (Frias Pablaza-Chandler, Op, London, 1990).
        • 12.a3 Ba5 13.Nfd2 f5 14.Nxe4 fxe4 15.Nc3 Na6 is equal (Ehlvest-Chandler, World ChT, Lucerne, 1989).

    10.a3

    • If 10.Bb2 cxd4 then:
      • If 11.Qxd4 Be7 12.Nc3 Nc5 13.Rad1 Qc8 then:
        • 14.Qe3 d6 15.Bh3 Qc6 16.Nb5 Nce4 17.Bg2 gives White a small advantage in space (Wells-Caoili, Op, Bled, 2001).
        • 14.Ng5 Bxg2 15.Kxg2 Qc6+ 16.f3 Rfd8 17.Nge4 d5 is equal (Horvath-Salov, Euro Club Cup, Hilversum, 1993).
      • 11.Nxd4 Bxg2 12.Kxg2 Qc7 13.Nf3 Be7 14.Nc3 is equal (Aronian-Carlsen, Amber Blind, Monte Carlo, 2011).

    10...Bxc3 11.Nxc3 cxd4 12.Nxd4 Bxg2 13.Kxg2

    • One other game got this far, where the contestents agreed to a draw (Dorfman-Tkachiev, French Ch, Besançon, 2006).

    13...Nc5 (N)

    • There's too much at stake to toss in the towel here.

    14.Rc1

    • Fritz says that White has a fair advantage in space; my staff and I give White a small advantage.

    14...Qc7 15.b4 Nb7?!

    • This move is a bit passive. Black has no reason to be afraid of exchanges at the moment as it is White who has the advantage in space.
    • Better is 15...Nce4 16.Nxe4 Nxe4 17.Qd3 when:
      • 17...Nf6 18.c5 a5 19.c6 axb4 20.axb4 dxc6 21.Nxc6 continues to give White a small advantage in space.
      • 17...f5!? 18.Rfd1! Nf6 19.c5 bxc5 20.Rxc5 Qb7+ 21.f3 gives White a comfortable game.


    BLACK: Magnus Cartlsen




    WHITE: Wang Hao
    Position after 15...Nc5b7


    16.Ncb5!

    • White launches aggressive operationa on the queenside.
    • Also good is 16.e4! a6 17.Re1 d6 18.Qd3 Rfc8 19.Red1 Nd8 20.f3, giving White a whale-sized advantage in space, but Black's hedgehog formation leaves White few good targets.

    16...Qb8!?

    • Black completely takes the pressure off c4.
    • If 16...Qc8 17.Nf3 Qc6 18.Qd3 a5 19.Kg1 d6 20.Rfd1 gives White a great deal more space, but Black has pressure on a weak pawn at c4.

    17.Qd3!

    • White has a comfortable game with more active Knights.

    17...Rc8 18.Rfd1!?

    • White should play 18.e4! in order to esdtablish a stable advantage in the center.
    • 18.e4! a6 19.Nc3 Qc7 20.Rfd1 h5 21.h3 continues to give White a comfortable game.

    18...h6!?

    • This looks like a simple waiting move, but there is nothing to wait for. White is pressing his advantage on the opposite wing.
    • If 18...a6! 19.Nc3 Nd6 20.Nb1 a5 21.f3 axb4 22.axb4 gives White only a slight advantage in space.


    BLACK: Magnus Carlsen




    WHITE: Wang Hao
    Position after 18...h7h6


    19.f3!?

    • White prevents 19...Ng4, but that's not an immediate threat.
    • If 19.e4! a6 20.Nc3 Qc7 21.Rc2 then:
      • If 21...d6 22.f3 Nd8 23.Qe3 then:
        • 23...Qa7 24.Nce2 Nc6 25.Nxc6 Rxc6 26.Nd4 gives White a large advantage in space, but few good targets.
        • If 23...Qxc4? then White wins after 24.Nce2! Qxc2 25.Nxc2 Rxc2 26.Rxd6 b5 27.Rd2.
      • If 21...Qxc4? then:
        • 22.Qf3! Qc7 23.e5 Qxe5 24.Qxb7 b5 25.Rcc1 gives White greater activity and a better center for two pawns; he should win.
        • 22.Qxc4? Rxc4! 23.e5 Rac8 24.Nde2 Ng4 25.h3 Nxe5 gives Black two extra pawns.

    19...a6!

    • White must content himself with a small advantage in space for now.

    20.Nc3 Nd6 21.Nb1 Nde8!?

    • Black retreats the Knight in order to free the d-pawn and gain space in sthe center.
    • 21...a5 22.c5 Nde8 23.c6 Rd8 24.Qc2 axb4 25.axb4 gives White a small advantage in space.

    22.Nd2!

    • White seems willing to allow d5.
    • If 22.e4! (establishing a bind on d5) 22...a5 23.Nb5 h5 24.Qe2 e5 25.h4 gives White a comfortable advantage.

    22...Qb7!?

    • The Queen is probably more effective at b8. Black eschews any attempt to break up White's queenside pawns.
    • 22...a5 23.e4 axb4 24.axb4 Qd6 25.Qc3 e5 26.Nf5 leaves White with a small advantage.
    • 22...d5!? is premature and after 23.cxd5 Nxd5 24.e4 Ne7 25.Rxc8 Qxc8 26.Nc4 White still has a comfortable advantage.

    23.c5!?

    • This move could be played after proper preparation.
    • If 23.N2b3 d5 24.c5 bxc5 25.Nxc5 Qb6 26.Na4 give White a small advantage

    23...bxc5?!

    • Black could level the game.
    • If 23...a5! then:
      • 24.Rc4 axb4 25.axb4 bxc5 26.bxc5 is equal.
      • 24.Qb5 axb4 25.axb4 Qb8 26.cxb6 Rxc1 27.Rxc1 Nd6 is equal.

    24.bxc5!

    • White takes on a weak pawn, but one with dynamic possibilities. Let's keep an eye on this fellow.

    24...Qa7 25.N2b3!?

    • The c-pawn is better protected if White plays the foremost Knight to b3.
    • If 25.N4b3 a5 26.a4 Rcb8 27.Nd4 Rb4 28.Nb5 gives White a comfortable advantage in space.

    25...Nd5!

    • White continues to have a small advantage in space.
    • If 25...Nc7 26.c6 Ncd5 27.Qd2 Ne7 28.cxd7 Qxd7 29.Nc5 continues to give White a small advantage in space.


    BLACK: Magnus Carlsen




    WHITE: Wang Hao
    Position after 25...Nf6d5


    26.c6!

    • White sacrifices a pawn and gives his piece more potenital. The activity and space he gets for the pawn is quite impressive.

    26...dxc6?!

    • This is thw wrong way to recapture. Black takes on weak pawn that gives White a lasting advantage with dynamic possibilities.
    • 26...Rxc6! 27.Rxc6 dxc6 28.Nxc6 Ne3+ 29.Kg1 Qb6 30.Rc1 continues to give White a small advantage in space.

    27.e4!?

    • The c-pawn should be the target.
    • 27.Na5! Ne7 28.Ndxc6 Nxc6 29.Nxc6 Qb7 30.Qc2 clearly gives White a more active game.

    27...Ne7!

    • This is a wise prophylactic move. Black overprotects the c-pawn.
    • If 27...c5?! 28.exd5 cxd4 29.dxe6 fxe6 30.Qe4 Rxc1 31.Qxe6+ gives White a fair game; if 31...Qf7 then after the exchange of Queens and the completion of the exchange of Rooks, White will have a more active game.

    28.Nc5

    • White has a giant advantage in space in compesation for a pawn.

    28...Nf6

    • Black puts pressure on d5. An alternat plan is to seize the d-file.
    • 28...Rd8 29.Qc3 Rab8 30.a4 h5 31.Ne2 Rxd1 32.Rxd1 continues to give White spatial compensation for the pawn

    29.Ndb3!?

    • maintains White center better.
    • If 29.Qc3 then:
      • 29...a5 30.a4 Rab8 31.Rb1 Rd8 32.Rxb8 Rxb8 33.Ndb3 gives White space and activity in compensation for a pawn.
      • 29...Rab8 30.Ndb3 Ng6 31.a4 h5 32.h4 clearly gives White more activity and space; Black still has an extra pawn.

    29...Ng6!?

    • Black misses a chance to equalize.
    • If 29...Rcb8! 30.Qd6 a5 31.Rd4 Ne8 32.Qf4 Nf6 33.a4 is equal.
    • If 29...Rab8!? 30.Qc3! Rd8 then:
      • 31.a4 Ng6 32.a5 Ra8 33.Rb1 Rxd1 34.Rxd1 gives White an impressive advantage in space for the pawn.
      • If 31.Rxd8+!? Rxd8 32.Qa5 then:
        • 32...Rb8! 33.Rd1 Ng6 34.Rd6 Ne5 35.Qc3 Nfd7 is equal; White will regain the pawn but lose his advantage in space.
        • 32...Ra8!? 33.Rd1 Qb8 34.Rd3 Ng6 35.a4 Qe5 36.Rd8+ gives White a fair advantage overall.

    30.Qc3 Nf8!?

    • The Knight appears to have few options from f8.
    • If 30...Rab8 31.Na5 h5 then:
      • 32.h4 Ne7 33.a4 Qb6 34.Rc2 continues to give White a huge spatial advantage in compenstion for a pawn.
      • If 32.Rd6!? Qb6 33.Rc2 h4 then:
        • 34.Qb4 Qxb4 35.axb4 Rxb4 36.Nxc6 Rb1 37.Nxa6 gives White a small advantage in space; the material balance is level.
        • If 34.Rcd2!? Qb1! then:
          • 35.Qd3 Qa1 36.Nab3 Qxa3 37.Rd4 Rb4 38.Rxb4 Qxb4 gives Black an extra pawn and only a slight disadvantage in space.
          • 35.Rd1?! Rb2+ 36.Kh3 Rc2 37.Qb3 Qxb3 38.Naxb3 hxg3 gives Black a comfortable game.


    BLACK: Magnus Carlsen




    WHITE: Wang Hao
    Position after 30...Ng6f8


    31.Na5!

    • White still has more than enough compensation for the sacrificed pawn.

    31...Rab8

    • 31...Ng6 32.Rd6 Qb6 33.Nd3 Rab8 34.Rxc6 Rxc6 35.Nxc6 leaves White with a small advantage in space after leveling the material balance.

    32.a4 Kh8!?

    • This might make sense if Black is trying to maneuver his Knight to e7 via g8 in ordet to watch over potential outposts for White at d5 and f5.
    • That can be accomplished quicker by 32...Ng6 33.Rc2 Ne7 34.Rd6 Qb6 35.Rd4 Qa7 36.Rd1, but White still has fine compensation for the pawn.
    33.Rb1!?

    • White still has a considerable advantage in space in compensation for his pawn..
    • If 33.Rd6! Qb6 34.Nd3 Qe3 35.Nc4 Qe2+ 36.Nf2 gives White a more comfortable game.
    33...Rb6

    • White continues to have excellent compensation for the pawn.

    34.Rxb6 Qxb6 35.Nab7?!

    • White has ideas of disrupting Black's queenside plans, but should cut the Queen's way forward, not its retreat.
    • Correct is 35.Nab3 Rb8 36.Rd2 Ng6 37.a5 Qa7 38.Qd4 when White has more space and Black an extra pawn.


    BLACK: Magnus Carlsen




    WHITE: Wang Hao
    Position after 35.Na5b7


    35...Rb8!

    • White has a slight advantage in space.

    36.Nd6 Kg8

    • If 36...Qb2+ 37.Qxb2 Rxb2+ then:
      • 38.Kh3 Kg8 39.Nd3 Ra2 40.Ne5 Rxa4 41.Ndxf7 gives White a slight advantage in space.
      • 38.Kg1 Kg8 39.Nxa6 Ng6 40.Nc5 Ne5 41.Rf1 Rc2 is equal.

    37.Rd2!

    • White has a small advantage in space.

    37...a5 38.Nd3 N8d7 39.Nc4

    • 39.Rb2!? Qe3 40.Rxb8+ Nxb8 41.Nc4 Qe2+ 42.Nf2 is equal.

    39...Qa6

    • Black takes some pressure off the b-file, but the Queen has little future at its new post.
    • If 39...Qb3 40.Qxb3 Rxb3 41.Nxa5 Rc3 42.Nf2 Ne5 43.f4 continues to give White a slight advantage in space.

    40.Rc2!?

    • White has a small advantage in space.
    • If 40.Rb2 Rc8 then:
      • 41.Nde5 Nxe5 42.Nxe5 c5 43.Nc4 Qc6 44.Qc2 continues to give White compensation for the pawn.
      • If 41.Nd6!? then:
        • 41...Rd8! 42.Nf2 h5 43.Rb3 c5 44.Nc4 Ne8 45.Rb5 gives White a slight advantage.
        • 41...Ra8?! 42.Rb3 Ne8 43.Nc4 Rc8 44.Ndb2 Nc5 45.Rb6 continues to give White more abundant space for the pawn sacrificed about 15 move hence.

    40...c5!?

    • If 40...g5! 41.Nce5 then:
      • 41...Nxe5 42.Nxe5 Rb1! (threatening mate with the Queen on f1) 43.Rf2 Qb6 44.Nxc6 Kg7 45.Nxa5 gives White an extra pawn, but the game is equal overall owing to Black'superior activity and preesure on White's King position from a distance.
      • 41...Rb6 42.Nc5 Nxc5 43.Qxc5 Rb7 44.Qxc6 Qxc6 45.Nxc6 gives White a slight advantage
    • If 40...Nb6?! then:
      • 41.Nce5! Nbd7 42.Qxc6 Qxc6 43.Rxc6 gives White a comfortable game.
      • 41.Qxa5?! Qxa5 42.Nxa5 Ra8! 43.Rxc6 Nfd7 44.Nc4 still gives White a small advantage in space.



    BLACK: Magnus Carlsen




    WHITE: Wang Hao
    Position after 40...c6c5


    41.Rb2 Rb7 42.Rxb7 Qxb7 43.Qb2

    • 43.Nxa5?! Qa6! 44.Kg1 g5 45.Nf2 Qa8 46.Nb3 g4 is equal.
    43...Qa6 44.Qb5 Qxb5 45.axb5 a4 46.Ndb2?!

    • Black has a fine game after 46...Nb6. Advancing the passed pawn is essential.
    • 46.b6 a3 47.Nc1 Ne8 48.e5 f6 49.f4 continues to gives White a small advantage in space.


    BLACK: Magnus Cartlsen




    WHITE: Wang Hao
    Position after 46.Ndb2


    46...Nb6!!

    • Suddenly, Black has a huge advantage. The proffered Knight is a big blue frog.
    • One should always be aware of facets of the endgame. In this case, Magnus uses the fact that Knights have a difficult time defending against Rook pawns.

    47.Kf2

    • The King is a long way from the the action, but it must get there. It has time.
    • If 47.Nxb6?? then Black wins after 47...a3! 48.Nd3 a2.

    47...Nfd7 48.Ke3 Kf8 49.f4

    • White will keep Black's Knights out of the center.
    • If 49.Na3!? Ke7 50.f4 Kd8 51.e5 f6 52.exf6 Nxf6 puts d5 at the disposal of Black's Knights.

    49...f5 50.exf5!?

    • The pawn exchange is unwise. Black will now be able to bring his King through the center if necessary.
    • Better is 50.e5 when 50...Ke8 51.h4 Nxc4+ 52.Nxc4 Nb6! 53.Na3 Kd8 gives White a difficult but defensible position.


    BLACK: Magnus Cartlsen




    WHITE: Wang Hao
    Position after 50.ef5:p


    50...exf5!

    • Black happily opens the center. The Black King now becomes a dynamic feature. If White had a pawn at c4 and his Knight at a3, this would be so critical.
    • If 50...Nxc4+?! 51.Nxc4! exf5 52.Kd2 then:
      • 52...Ke7 53.Kc3 Nf6 54.Nb6 Ne4+ 55.Kb2 leaves White with only a small advantage.
      • 52...Nb6?? throws it all away and White wins after 53.Nxb6 a3 54.Kc3.

    51.Kd3 Ke7 52.Na3!?

    • Better is 52.Kc2 Ke6 53.Kd3 g6 54.Kc2 g5 55.h3 Kd5 when Black still has a comfortable game with an extra pawn but mo clear way to amke progress.

    52...Nf6!

    • Black is a little bit better off than before.
    • If 52...Kd6!? 53.Nbc4+ Nxc4! then:
      • 54.Nxc4+ Kc7 55.Kc2 g6 56.Kb2 Nb6 57.Ne5 g5 continues to give White a comfortable game with an extra pawn.
      • If 54.Kxc4?! Nb6+ then:
        • 55.Kd3 Kd5 56.Kc3 g5 57.fxg5 hxg5 58.Nc2 Nc4 continues to give Black an extra pawn; each side has a passer, but White canno approach the pawn at a4 not advance his pawn at b5.
        • If 55.Kc3? then Black wins after 55...Kd5 56.h3 h5 57.h4 g6.

    53.Nbc4 Nxc4 54.Nxc4 Ne4 55.Ne5?

    • White's Knight should not wander from the queenside. White is a pawn down, so his defense is more critical.
    • If 55.Kc2 then 55...Nd6 56.b6 Kd7 57.Ne5+ Kc8 stops White's passer, but White's Knight and King can defend against Black's remaining queenside pawns.


    BLACK: Magnus Cartlsen




    WHITE: Wang Hao
    Position after 55.Nc4e5


    55...Kd8!

    • The b-pawn cannot queen.

    56.g4 fxg4 57.Nxg4

    • If 57.Kxe4 then Black wins after 57...a3 58.b6 a2 59.b7 Kc7 60.Nd7 Kxb7.

    57...Nd6 58.b6 Kc8 59.Ne3 Kb7 60.Nd5 Kc6 0-1

    • If 61.b7 then after
      • 61...Kxb7 62.Nc3 a3 63.Na2 Nb5 White will advance his King and c-pawn with an easy win.
      • Wang Xiansheng resigns.

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    Response to Jack Rabbit (Reply #1)

    Mon Sep 3, 2012, 04:53 PM

    7. World Junior Championships, Athens

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    Response to Jack Rabbit (Reply #7)

    Mon Sep 3, 2012, 04:55 PM

    8. Ipatov - Baron, Round 4

    The new world junior champion is Alexander Ipatov of Turkey by way of Ukraine.



    Alexander Ipatov
    Photo by Andreas Kontokanis (karpidis, http://www.flickr.com/people/8022405@N02) from Wikimecia Commons (http://commons.wikimedia.org/wiki/File:Alexander_Ipatov_2012.jpg) via Flickr
    (Creative Commons License, Attribution/Share Alike)


    Alexander Ipatov - Tal Baron
    World Junior Championships (Boys' Group), Round 4
    Athens, 3 August 2012

    East India Game: Nimzo-Indian Defense (Sämisch Opening)


    1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 d5 5.a3 Bxc3+ 6.bxc3 c5 7.cxd5 exd5 8.Bd3 0-0 9.Ne2 b6 10.0-0 Ba6

    • For moves and variations of the Sämisch Opening up to here, see the green notes to White's fourth move in Bacrot-David, French ChT, Mulhouse, 2011.

    11.f3

    • If 11.Bxa6 Nxa6 then:
      • If 12.Bb2 Qd7 13.a4 Rfe8 14.Qd3 c4 gives Black a fair advantage in space (Botvinnik-Capablanca, AVRO, Holland, 1938).
      • If 12.Qd3 then:
        • 12...Nc7 13.dxc5 bxc5 14.c4 Rb8 15.Qc2 dxc4 16.Rd1 Qe7 is equal (Kotov-Benko, IT, Budapest, 1949).
        • 12...Qc8 13.f3 Re8 14.Ng3 Qb7 15.Ra2 Re6 16.Re2 Rae8 17.Rfe1 h5 18.Qf5 gives White a small advantage in space (Beliavsky-Short, IT, Linares, 1990).

    11...Re8 12.Ng3

    • 12.Ra2 Qc8 13.Bb1 Bc4 14.Rb2 Qa6 15.Re1 Nbd7 16.a4 is equal (Gulko-Ljubojevic, Ol, Moscow, 1994).

    12...Bxd3 13.Qxd3 Nc6 14.Bb2

    • If 14.Ra2!? then:
      • If 14...Qd7 15.Re2 Rad8 16.Bb2 Re6 17.Rd1 then:
        • If 17...cxd4 18.cxd4 then:
          • If 18...Na5 19.e4 Rc8 20.e5 Ne8 21.f4 Rec6 22.f5 Nc4 then:
            • If 23.Ba1 then:
              • If 23...Qd8!? then:
                • 24.Qf3!? b5 25.Ree1 Qg5 26.Rd3 Nc7 27.Bc3 gives White a small advantage in space (Steadman-West, Op, Auckland, 2010).
                • 24.Rde1! Qg5 25.Qf3 Nc7 26.a4 a5 27.Rf2 gives White a comfortable game.
              • 23...Qe7 24.Qf3 Qxa3 25.Qxd5 Ne3 26.Qf3 gives White a small advantage in space.
            • 23.Qf3 Nxb2 24.Rxb2 Rc3 25.Rd3 Qa4 26.Rxc3 Qxd4+ is equal (Montalvo-Patriarca, Ol, Dresden, 2008).
          • 18...Ne8 19.e4 Ne7 20.e5 Rc8 21.f4 g6 22.f5 gives White a fair advantage in space (Khaifman-Bologan, IT, Prague, 2002).
        • If 17...g6 18.e4 dxe4 19.fxe4 then:
          • If 19...h5 20.Ree1 Qe7 then:
            • 21.Qf1 Nxe4 22.Rxe4 Rxe4 23.Nxe4 Qxe4 gives Black stronger pawns, a radiant Queen and more space (Serper-Onischuk, US Ch, San Diego, 2006).
            • 21.Qf3 h4 22.Nf1 Nxe4 give Black a comfortable game (Borg-Kunte, Ol, Istanbul, 2000).
          • 19...Ng4?! 20.Red2! Qe7 21.h3 Nf6 22.Qb5 is equal
      • If 14...Rc8 15.Re2 Re6 16.Bb2 then:
        • 16...Na5 17.e4 cxd4 18.cxd4 g6 19.e5 gives White a small advantage in space (Menezes-Izso, Op, Oberwart, 2012).
        • 16...Ne7?! 17.e4! cxd4 18.cxd4 Ng6 19.Qd2 gives White a comfortable game (Djukic-Maksimovic, Serbian ChW, Pancevo, 2007).

    14...Qd7?! (N)

    • If 14...Rc8 then:
      • If 15.Rae1 then:
        • 15...h6 16.e4 cxd4 17.cxd4 dxe4 18.fxe4 Ne5 19.Qd1 gives White a center duo and a good center; overall, Black's pawns are better (Kotov-Unzicker, ITZ, Saltsjobaden, 1952).
        • 15...Na5 16.e4 Nc4 17.Bc1 b5 18.Bg5 Qb6 19.Bxf6 Qxf6 20.exd5 cxd4 21.cxd4 a6 is equal (Miedema-Hort, Op, Hoogeveen, 2008).
        • 15...cxd4 16.cxd4 Qc7 17.e4 Ne7 18.e5 gives White more freedom (Gligoric-Damljanovic, IT, Sarajevo, 1969).
      • If 15.Rad1 then:
        • 15...h5 16.Rfe1 g6 17.e4 cxd4 18.cxd4 Qd7 19.e5 is equal (Khurtsidze-N. Kosintseva, Eruo CHT, Novi Sad, 2009).
        • 15...Na5 16.e4 Nc4 17.Bc1 cxd4 18.cxd4 Nd7 19.e5 gives White a small advantage in space (Gupta-Sanikidze, Op, Kavala, Greece, 2012).

    15.e4!

    • White has a center pawn duo that is better than Black slightly off-center duo; a break to e5 cannot be stopped.

    15...dxe4!?

    • This allows White to open the f-file to begin storming Black's castle walls.
    • If 15...Red8 16.e5 Ne8 17.Bc1 Nc7 18.Be3 Na5 gives White a fair advantage in space.

    16.fxe4!

    • White has a comfortable game.

    16...Qg4?!

    • The attack on White's center pawns is doomed to failure.
    • 16...Ne5 17.Qe2 Ng6 18.e5 cxd4 19.cxd4 Re6 20.Nf5 continues to give White a comfortable game. White's center pawns are well protected and hindering Black's mobility, but White's center pawns are weak and his Bishop is bad.
    • 16...Rad8 17.Rxf6 gxf6 18.Nh5 Qd6 19.Rf1 Kf8 20.Nxf6 gives White an extra pawn, but his Bishop is bad and Black's Rooks are centralized.


    BLACK: Tal Baron




    WHITE: Alexander Ipatov
    Position after 16...Qd7g4


    17.e5!

    • The pawn is a bone in Black's throat.

    17...Nh5 18.Qf5 Qxf5 19.Nxf5

    • 19.Rxf5?! Nxg3! 20.hxg3 Rad8 21.Raf1 Re7 22.R5f4 b5 leaves Black better with a superior minor piece.

    19...g5?

    • The pawn is weak and vulnerable.
    • Better is 19...Rf8 20.g4 g6 21.gxh5 gxf5 22.Rxf5 f6 23.e6, but this leaves White close to a winning position.


    BLACK: Tal Baron




    WHITE: Alexander Ipatov
    Position after 19...g7g5


    20.Nh6+?!

    • White misses a quick win.
    • White wins after 20.Bc1! f6 21.g4 Nf4 22.Bxf4 gxf4 23.exf6 when he has an extra pawn, the initiative and the makings of a kingside attack.

    20...Kg7!

    • White still has a vastly superior game, but Black has dodged a bullet for now.

    21.Nxf7 Nf4 22.Nxg5

    • 22.Nd6 Rf8 23.Rad1 cxd4 24.cxd4 Kg6 25.Rf2 gives White two connected center passed pawns and a Knight at d6; Black may find some counterplay if he can activate his Queen's Rook.

    22...Nd3 23.Rf7+ Kg8 24.Raf1

    • 24.Rb1 cxd4 25.cxd4 Nxb2 26.Rxb2 Nxd4 27.Rd7 leaves White with an extra pawn.

    24...Nxb2?

    • Black loses too much time taking the Bishop.
    • Better is 24...cxd4 25.cxd4 Nxb2 26.Rxh7 Re7 27.Rh4 gives Black three pawns for a piece, but White's kingside activity gives him a healthy advantage.


    BLACK: Tal Baron




    WHITE: Alexander Ipatov
    Position after 24...Nc4b2:B


    25.Rxh7!

    • White already has three pawns for the piece.

    25...Re7 26.Rh6

    • Stronger is 26.Rh4 cxd4 27.cxd4 Rf8 28.Rf6 Rxf6 29.exf6.

    26...Rc8 27.Rff6

    • If 27.e6! cxd4 28.Nf7 then:
      • If 28...Nd8 then White wins after 29.Rh8+ Kg7 30.cxd4 Rxe6 31.Nxd8 Rd6 32.Nf7.
      • If 28...Ree8? then White wins after 29.Rf5! Kf8 30.Nd6+ Kg7 31.Rh3 Rxe6 32.Rf7+.

    27...Rg7

    • With an opportunity to get at least one foot out of the hole, Black digs his grave deeper.
    • 27...cxd4! 28.cxd4 Nxd4 29.Rhg6+ Rg7 30.Rd6 Nf5 31.Rxg7+ still leaves White with the exchange, two extra pawns and an advanced passer.

    28.Ne6 cxd4

    BLACK: Tal Baron




    WHITE: Alexander Ipatov
    Position after 28...cd4:p


    29.Nxg7!!

    • The sacrifice strips away the last vestige of protection from the Black King.

    29...Nxe5

    • Black is now in a mating net.
    • If 29...Kxg7 then White wins after 30.Rhg6+ Kh7 31.Rxc6 Rxc6 32.Rxc6.

    30.Ne6!

    • Black's King has no move.

    30...dxc3 31.Rh5 Ng6

    • If 31...c2 then 32.Rg5+ Ng6 33.Rgxg6+ transposes into the text.

    32.Rg5 c2

    • If 32...Rc6 then 33.Rf8+ Kh7 34.Rh5#.

    33.Rgxg6+ Kh8

    • If 33...Kh7 then 34.Rg7+ Kh8 35.Rh6#.

    34.Rh6+ Kg8 35.Rfg6+ Kf7 36.Rg7+ 1-0

    • White gives mate on the next move.
    • Baron resigns.

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    Response to Jack Rabbit (Reply #7)

    Sat Sep 15, 2012, 02:59 PM

    24. Shimanov - Rapport, Round 10 (Slav/Tikhi Opening Theory)



    Richard Rapport
    Photo by Gerhard Hund (http://commons.wikimedia.org/wiki/User:GFHund) from Wikimedia Commons (http://en.wikipedia.org/wiki/File:Rapport,Richard_2012_Deizisau.jpg)
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    Aleksandr Shimanov - Richard Rapport
    World Junior Championship, Round 10
    Athens, 11 August 2012

    Slav Queen's Gambit: Tikhi Opening (Schallopp Defense)


    1.d4 d5 2.Nf3 Nf6 3.c4 c6 4.e3

    BLACK




    WHITE
    Slav Queen's Gambit: Tikhi Opening
    Position after 4.e2e3


    4...Bf5

    • The text is the Schallop Defense
    • (Pin Defense) If 4...Bg4 5.h3 then:
      • If 5...Bxf3 6.Qxf3 e6 7.Nc3 Nbd7 8.Bd3 then:
        • 8...dxc4 9.Bxc4 Bd6 10.0-0 0-0 11.e4 e5 12.d5 Nb6 13.Bd3 cxd5 14.exd5 h6 15.Be3 Rc8 16.Rac1 gives White the advantage in space (Ivanchuk-Gelfand, Tal Mem, Moscow, 2009).
        • If a) 8...Bd6 9.0-0 0-0 10.Rd1 then:
          • If 10...Re8 11.Qe2 Qe7 then:
            • If 12.Bd2 dxc4 13.Bxc4 e5 then:
              • 14.d5 e4 15.dxc6 bxc6 16.Na4 Qe5 17.g3 Qf5 gives Black a slight advantage in space (Hebden-Burgess, 4NCL, Telford, 2003).
              • 14.dxe5 Qxe5 15.g3 b5 16.Bb3 Nc5 17.Bc2 b4 gives Black a small advantage in space (Franco Ocampos-Felgaer, Spanish ChT, Olite, 2006).
            • If 12.e4 dxe4 13.Nxe4 Nxe4 14.Qxe4 Nf6 then:
              • If 15.Qh4 h6 then:
                • If 16.c5 Bc7 17.Bxh6 gxh6 18.Qxh6 then:
                  • 18...Red8 19.g4 Rxd4 20.Qg5+ Kf8 21.Qh6+ Kg8 22.Qg5+ is equal (Pilaj-Peralta, Ol, Torino, 2006).
                  • 18...Rad8 19.Qg5+ Kf8 20.Qh6+ Kg8 21.Qg5+ Kf8 22.Qh6+ Kg8 draw (Barbosa-Gomez, Op, New Delhi, 2012).
                • 16.Bd2 Rad8 17.Bxh6 gxh6 18.Qxh6 e5 19.Qg5+ draw (Vorobov-Movsesian, Aeroflot Op, Moscow, 2007).
              • 15.Qf3 e5 16.dxe5 Bxe5 17.Rb1 Rad8 draw (Kosic-Movsesian, Bosnian ChT, Neum, 2002).
          • If 10...Qe7 then:
            • 11.Bd2 Rfe8 12.Bf1 Rad8 13.Rac1 then:
              • 13...a6 14.Be1 g6 15.a3 Bb8 16.g3 Nb6 17.b3 is equal (Bönsch-Jackelen, Bundesliga 0708, Germany, 2008).
              • 13...h6 14.a3 a6 15.Re1 Bb8 16.g3 dxc4 17.Bxc4 is equal (Jussupow-Dautov, Bundesliga 0203, Germany, 2002).
            • 11.e4 dxc4 12.Bxc4 e5 13.d5 Nb6 14.Bb3 cxd5 15.Nxd5 Nfxd5 draw (Bareev-Gelfand, World Cup, Khanty-Mansiysk, 2005).
        • If b) 8...Bb4 9.Bd2 0-0 then:
          • If 10.a3 Ba5 then:
            • 11.cxd5 cxd5 12.0-0 Re8 13.Rac1 e5 14.Bc2 exd4 15.exd4 Bxc3 16.Qxc3 draw (Bacrot-Karjakin, World Cup, Khanty Mansiysk, 2007).
            • If 11.b4 Bc7 12.cxd5 cxd5 13.0-0 then:
              • 13...Nb6 14.Rac1 Qd7 15.g3 Rab8 16.e4 dxe4 17.Nxe4 Nxe4 18.Bxe4 Nd5 19.Rfd1 Bb6 20.h4 Rbc8 21.h5 h6 22.Be3 Rfd8 is slightly in Black's favor, for if White were to initiate exchanges at d5 then Black would end up with the good Bishop (Bindrich-Caruana, Aeroflot Op, Moscow, 2008).
              • If 13...Re8 14.e4 e5 15.Bg5 h6 16.Bh4 g5 17.Bg3 exd4 18.Nxd5 Nxd5 19.exd5 Ne5 then:
                • 20.Qf5 Nxd3 21.Bxc7 Qxc7 22.Qxd3 Qe5 23.Rad1 Qxd5 24.Qxd4 Qxd4 25.Rxd4 draw (Siebrecht-Loeffler, Bundesliga 0708, Kreuzberg, 2007 and Predojevic-Fridman, Bundesliga 0708, Kreuzberg, 2007).
                • 20.Bxe5 Bxe5 21.Rfc1 Kg7 22.d6 Qxd6 23.Qxb7 Qb6 24.Qf3 then:
                  • If 24...Rac8!? 25.Rxc8! Rxc8 26.Qf5 then:
                    • 26...Qe6? 27.Qh7+! Kf8 28.Bf5 Black resigns (Kharlov-al Sayed, Op, Dubai, 2003).
                    • 26...Re8 27.Qh7+ Kf8 28.g3 Rc8 29.Qf5 Qe6 30.Re1 Qxf5 31.Bxf5 Re8 gives White a small advantage, but it is doubtful this can be converted to a win.
                  • 24...Qf6 25.Qxf6+ Bxf6 26.Rc7 Be5 27.Rb7 Kf6 28.Kf1 gives White nothing better than a small edge.
          • If 10.0-0 Re8 11.a3 Ba5 then:
            • If 12.b4 Bc7 13.cxd5 then:
              • If 13...exd5 14.b5 Nf8 15.bxc6 bxc6 then:
                • If 16.Rfc1 Ne6 17.h4 c5 18.dxc5 then:
                  • 18...d4 19.Ne4 dxe3 20.Nxf6+ gxf6 21.Qxe3 Ng5 gives Black a clear advantage (Iotov-San Segundo Carillo, Ol, Dresden, 2008).
                  • 18...Nxc5 19.Nxd5 Be5 20.Bb5 Nb3 21.Bxe8 Nxd2 22.Nxf6+ Bxf6 23.Qe2 gives White a material advantage (Kveinys-Matamoros Franco, Ol, Dresden, 2008).
                • If 16.Qd1 Ne6 then:
                  • 17.Qc2 c5 18.dxc5 Nxc5 19.Nb5 Bb6 20.Rfd1 is equal (Lysyj-Movsesian, Aeroflot Op, Moscow, 2011).
                  • 17.Qa4 c5 18.Nb5 Bb6 19.dxc5 Nxc5 20.Qc2 Nfe4 is equal and soon agreed drawn (Gelfand-Kramnik, Amber Blind, Nice, 2008).
              • 13...cxd5 14.e4 e5 15.Bg5 h6 16.Bh4 g5 transposes into Siebrecht-Loefler, etc., above.
            • If 12.Qd1 Bc7 then:
              • If 13.Qc2 Qe7 14.Rfd1 dxc4 15.Bxc4 Nb6 16.Bf1 e5 then:
                • 17.dxe5 Qxe5 18.g3 h5 19.h4 g5 20.hxg5 Qxg5 is equal (Navara-Le Quang Liem, IT B, Wijk aan Zee, 2011).
                • 17.Be1 Rad8 18.dxe5 Qxe5 19.g3 h5 20.Bg2 h4 is equal (Alekseev-Ragger, World Cup, Khanty-Mansiysk, 2011).
              • 13.Rc1 a6 14.Qc2 Rc8 15.Rfd1 Bb8 16.e4 dxc4 17.Bxc4 c5 gives Black a slight advantage (Kostiuk-Pähtz, Euro ChW, Rijeka, 2010).
      • If 5...Bh5 6.Nc3 e6 7.g4 Bg6 8.Ne5 Nbd7 9.Nxg6 hxg6 then:
        • If 10.Bg2 dxc4 11.Qe2 Nb6 12.0-0 Be7 13.Rd1 then:
          • If 13...g5 14.a4 a5 15.e4 Nfd7 16.Be3 e5 17.d5 Qb8 18.b3 then:
            • 18...f6 19.bxc4 Bc5 20.Bxc5 Nxc5 is equal (Hebden-L'Ami, EU Ch, Liverpool, 2008).
            • 18...cxb3 19.Rab1 Nc5 20.Bxc5 Bxc5 21.Rxb3 Qd6 allows Black to hang on to the extra pawn.
          • If 13...Nfd7 then:
            • 14.e4 e5 15.dxe5 Qc7 16.e6 fxe6 17.g5 gives Black an extra pawn (Stefanova-Predojevic, Op, Chalkida, 2009).
            • 14.Ne4 Rc8 15.a4 a5 16.Nd2 Bd6 17.Nxc4 Nxc4 18.Qxc4 regains the pawn with equality.
        • If 10.Bd2 Bb4 then:
          • If 11.Qb3 a5 12.f3 dxc4 13.Bxc4 Nd5 then:
            • 14.a3 a4 15.Qc2 Ba5 16.Kf2 Qh4+ 17.Kg2 Bc7 is equal (Fridman-C. Balogh, Bundesliga 1112, Germany, 2011).
            • 14.0-0-0?! a4 15.Qc2 a3 16.Kb1 Qa5 17.Bb3 axb2 gives Black a small advantage in space (Kveinys-S. B. Hansen, Op, Reykjavik, 2011).
          • 11.Rc1 Qc7 12.a3 Bxc3 13.Bxc3 Ne4 14.Bg2 Nxc3 15.Rxc3 Nb6 gives Black a slight advantage in space (Bareev-Najer, Op, Philadelphia, 2009).


    BLACK




    WHITE
    Slav Queen's Gambit: Tikhi Opening (Schallopp Defense)
    Position after 4...Bc8f5


    5.Nc3 e6 6.Nh4 Bg6

    • If 6...Be4 7.f3 Bg6 8.Qb3 then:
      • If 8...Qc7 9.Bd2 then:
        • If 9...Be7 then:
          • If 10.cxd5 cxd5 then:
            • If 11.Rc1 Nc6 12.Nxg6 hxg6 13.Na4 Nd7 14.Bd3 Rb8 is equal (Jakovenko-Vitiugov, Russian Ch, Moscow, 2009).
            • If 11.Nxg6 hxg6 12.0-0-0 Nc6 13.Kb1 a6 14.Rc1 then:
              • If 14...0-0 15.g4 then:
                • 15...Rfc8 16.h4 Na5 17.Qc2 Nc4 is equal (Khmelniker-Yordanov, Euro Ch, Plovdiv, 2008).
                • 15...Na5 16.Qd1 Nc4 17.Bxc4 dxc4 18.e4 Rfd8 is equal (Drozdovskij-C. Balogh, Mindsports Rpd, Beijing, 2008).
              • 14...Nd7 15.Bd3 Rc8 16.Ne2 Qb6 17.Qd1 Bb4 18.h4 Bxd2 19.Qxd2 is equal (Tregubov-Bareev, Euro Club Cup, Fügen, 2006).
          • If 10.Nxg6 hxg6 11.0-0-0 then:
            • If 11...Nbd7 12.cxd5 Nxd5 13.Nxd5 exd5 then:
              • If 14.Kb1 0-0-0 15.Rc1 Kb8 16.h3 then:
                • 16...Qd6 17.Ba6 Nb6 18.Bd3 Nd7 19.Ba5 gives White the initiative (Vitiugov-P. Smirnov, Russian Ch HL, Novokuznetsk, 2008).
                • 16...Nf6 17.Bd3 Nh5 18.Rc3 Ng3 19.Rhc1 Ka8 20.Qa4 gives White the initiative (Bagheri-Poat, Op, Cappelle la Grande, 2006).
              • 14.e4 0-0-0 15.exd5 cxd5+ 16.Kb1 Qd6 17.g3 g5 18.Bd3 Kb8 is equal (Kishnev-S. Volkov, Euro Club Cup, Halidiki, 2002).
            • If 11...a6 then:
              • 12.Kb1 dxc4 13.Bxc4 b5 14.Bd3 c5 15.dxc5 Nbd7 16.Ne4 Nxe4 17.Bxe4 Nxc5 18.Qc3 Bf6 19.Qc2 Rc8 is equal (Le Quang Liem-C. Balogh, Mindsports Rpd, Beijing, 2008).
              • 12.cxd5 cxd5 13.Kb1 Nc6 transposes into Khmelniker-Yordanov and subordinate lines, above.
        • If 9...Nbd7 10.cxd5 exd5 11.0-0-0 then:
          • 11...0-0-0 12.e4 dxe4 13.Nxg6 hxg6 14.fxe4 Nb6 15.Bg5 Re8 16.Bd3 Ng4 17.Rhf1 gives White the advantage in space, anchored by a central pawn duo (Tregubov-Peng, Corus B, Wijk aan Zee, 2002).
          • 11...Be7 12.Nxg6 hxg6 13.e4 dxe4 14.fxe4 Nb6 15.g3 0-0 16.Bf4 Qd8 17.h4 gives White the advantage in space, again featuring a central pawn duo (Sargissian=Beliavsky, Euro Ch, Istanbul, 2003).
      • If 8...Qb6 9.Nxg6 hxg6 10.Bd2 Nbd7 11.0-0-0 then:
        • 11...Qxb3 12.axb3 Bd6 13.h3 Nh5 14.Bd3 Ng3 15.Rhe1 0-0 16.Kb1 a6 17.Rc1 Rac8 18.Red1 Rfd8 is equal (Gelfand-Eljanov, Grand Prix, Jermuk, 2009).
        • 11...Be7 12.Kb1 0-0-0 13.Qc2 Kb8 14.g4 dxc4 15.Bxc4 Rh3 16.g5 Nd5 17.e4 Nxc3+ 18.Qxc3 is equal (Tkachiev-Shirov, Rpd Op, Corsica, 2003).

    7.Nxg6

    • If 7.Be2 Nbd7 8.0-0 Bd6 9.g3 then:
      • If 9...0-0 10.Nxg6 hxg6 then:
        • 11.Qb3 Rb8 12.Rd1 Qe7 13.Qc2 dxc4 14.Bxc4 Nb6 15.Bd3 Rfd8 16.Bd2 is equal (Rodshtein-Ragger, Aeroflot Open, Moscow, 2009).
        • 11.b3 Qe7 12.Bf3 Rac8 13.Bg2 Rfd8 14.Bd2 Bb4 15.a3 Bxa3 16.c5 Bb2 17.Rxa7 gives White the more active game (Gelfand-Kramnik, Tal Mem, Moscow, 2007).
      • 9...Qe7 10.a3 dxc4 11.Bxc4 Nb6 12.Be2 0-0 13.Bd2 Rfe8 14.Nxg6 hxg6 15.Qc2 e5 16.dxe5 Bxe5 is equal (Meier-S. B. Hansen, Euro ChT, Novi Sad, 2009).

    7...hxg6 8.Bd3

    • If 8.g3 Nbd7 then:
      • 9.a3 Be7 10.cxd5 exd5 11.Bg2 Nb6 12.0-0 Qd7 13.Re1 0-0-0 is equal (Baumann-Shirov, Ol, Dresden, 2008).
      • If 9.Bg2 dxc4 10.Qe2 then:
        • If 10...Be7 11.Qxc4 e5 then:
          • If 12.0-0 Nb6 13.Qe2 then:
            • If 13...exd4 14.Rd1 0-0 15.Rxd4 Qc7 then:
              • 16.e4 Qe5 17.Rd3 Rad8 18.Bf4 Qe6 19.Rad1 Rxd3 20.Rxd3 gives White a small advantage in space (Tregubov-Carlsen, Op, Reyjavik, 2006).
              • 16.b4 Rad8 17.Rxd8 Rxd8 18.b5 Nfd5 19.Nxd5 Nxd5 20.Bb2 gives White the Bishop pair, stronger pawns and a slight initiative; Black has a slight edge in space (Inarkiev-Zakhartsov, Russian Ch, Tomsk, 2006).
            • If 13...Qc7 then:
              • 14.dxe5 Qxe5 15.e4?! g5! 16.h3 Bc5 is equal (Stefanova-Malchonova, Russian ChT, Dagomys, 2010).
              • 14.a4 exd4 15.exd4 0-0 16.a5 Nbd5 17.Bg5 gives White a fair advantae in space.
          • If 12.Ne2!? exd4 13.Nxd4 Ne5 14.Qc2 Bb4+ then:
            • 15.Bd2 Bxd2+! 16.Qxd2 0-0 17.Rc1 Qe7 18.0-0 c5 is equal (Aronian-Anand, Amber Blind, Monte Carlo, 2007).
            • 15.Kf1 Qd6 16.f4 Ned7 17.h3 0-0-0 remains equal.
        • If 10...Nb6 11.0-0 then:
          • 11...Bb4 12.a3 Ba5 then:
            • 13.Bd2 0-0 14.Ne4 Bxd2 15.Nxd2 Qe7 16.Nxc4 Nxc4 17.Qxc4 gives White athe advantage in space (Hillarp Persson-Cheparinov, IT, Malmö, 2007).
            • 13...Qe7 14.Ne4 Bxd2 15.Nxd2 e5 16.dxe5 Qxe5 17.Nxc4 Nxc4 18.Qxc4 gives White a small advantage in space (Tkachiev-Dreev, IT, Poikovsky, 2007).
            • 13.Rd1 Qe7 14.e4 e5 15.Be3 draw (Ponomariov-Shirov, IT, Foros, 2006).
          • If 11...Be7 12.Rd1 0-0 13.e4 then:
            • 13...Nfd7 14.Be3 Qc7 15.f4 Rad8 16.h4 c5 is equal (Nyback-Ragger, Bundesliga 0809, Wattenscheid, 2008).
            • 13...Re8 14.h4 draw (Citak-Atakisi, Mediterranean Ch, Antalya, Turkey, 2006).
    • If 8.Bd2 Nbd7 then:
      • If 9.Rc1 Bd6 10.g3 then:
        • If 10...Qe7 11.c5 Bc7 12.f4 then:
          • 12...g5 13.Bg2 gxf4 14.exf4 g6 15.b4 a6 16.Qf3 is equal (Campos Moreno-M. Gurevich, Op, Andorra, 2005).
          • 12...Ba5 13.Nb1 Bxd2+ 14.Nxd2 Ne4 15.Nxe4 dxe4 16.h4 is equal (Bareev-Dreev, Russian Ch, Moscow, 2004).
        • 10...0-0 11.Qb3 Rb8 12.Bg2 Bc7 13.0-0 gives White a slight advantage in space (Dreev-Felgaer, IT, Dos Hermanas, 2005).
      • If 9.g3 Bb4 10.Qb3 then:
        • If 10...Bxc3 11.Bxc3 Ne4 12.Bg2 Nxc3 then:
          • If 13.Qxc3 f5 then:
            • 14.0-0 Qe7 15.cxd5 exd5 16.b4 Nf6 17.Rfc1 gives White a small advantage on the queenside (Kramnik-Topalov, World Ch Match, Elista, 2006).
            • 14.0-0-0 Nb6 15.b3 Qe7 16.Kb1 a5 17.c5 Nd7 is equal (Tregubov-Wang Yue, Euro Club Cup, Kallithea, 2008).
          • 13.bxc3 Qc7 14.Rb1 Rb8 15.Bf3 draw (Dreev-Motylev, Aeroflot Op, Moscow, 2008).
        • If 10...Ba5 then:
          • 11.Bg2!? 0-0 12.0-0 Nb6! 13.cxd5 exd5 14.Rad1 Re8 15.Bc1 Qd7 16.Qc2 g5 draw (Wang Yue-Wang Hao, Op, Reykjavik, 2008).
          • 11.cxd5 cxd5 12.Bd3 Qb6 13.Qa4 0-0 14.Rb1 continues to give White a fair advantage in space.

    8...Nbd7 9.0-0 Ne4!? (N)

    • If 9...Bd6 10.h3 Qe7 11.c5 Bc7 12.f4 then:
      • 12...Nh5 13.Ne2 f5 14.Bd2 gives White a small advantage in space (Movsesian-Motylev, Russian ChT, Sochi, 2012).
      • If 12...Ng8 13.b4 a6 then:
        • 14.e4?! dxe4 15.Nxe4 Ndf6 16.Ng5 is equal (Sargissian-S. Brunello, Op, Gibraltar, 2012).
        • 14.a4! Nh6 15.Bd2 Nf5 16.Qf3
        • continues to give White a comfortable advantage in space.
    • If 9...Be7 10.Bd2 0-0 then:
      • 11.cxd5 exd5 12.Qf3 Nb6 13.Rad1 Bb4 14.a3 gives White a small advantage (Molchanova-Gunina, Euro ChW, Gaziantep, 2012).
      • 11.Rc1 dxc4 12.Bxc4 a6 13.a4 c5 14.Qe2 Nb6 is equal (Posedaru-Ludwig, World Youth BU18, Vang Tau, 2008).

    10.g3

    • White has a small advantage in space.

    10...Nd6

    • 10...Nxc3 11.bxc3 dxc4 12.Bxc4 Qa5 13.Qc2 0-0-0 14.e4 continues to give White a small advantage in space.

    11.b3

    • If 11.cxd5 exd5 12.Re1 Be7 13.e4 then:
      • 13...dxe4 14.Nxe4 0-0 15.Nxd6 Bxd6 16.Re2 Nf6 17.Qa4 gives White the advantage in space, but also an isolated pawn.
      • 13...Nxe4?! 14.Nxe4! dxe4 15.Bxe4 Nb6 16.Bf4 0-0 17.Qf3 gives White a small advantage; Black take the d-pawn, but White could take on g6 and come out slightly better.

    11...Nf5 12.a3!?

    • White decides to keep position closed for now, although both sides would probably benefit from a more open game.
    • If 12.cxd5! then:
      • If 12...cxd5 13.Bb2 then:
        • 13...Rc8 14.Qf3 Be7 15.Rac1 0-0 16.Rc2 Qa5 17.Rfc1 gives White a small advantage.
        • 13...Bb4!? 14.Rc1! Rc8 15.a3 Be7 16.Qe2 0-0 17.Na4 gives White a fair advantage; the exchange in the c-file will benefit White, regardless of who initiates the exzchange.
      • If 12...exd5 13.Re1 then:
        • 13...Bb4 14.Bd2 Bxc3 15.Bxc3 Nf6 16.Qf3 Qd7 17.Ba5 gives White a small advantage with active Bishops and stronger pawns; Black has command of the h-file.
        • If 13...Be7?! 14.e4! then:
          • 14...dxe4 15.Bxe4 0-0 16.d5 Nc5 17.Bxf5 gxf5 18.Ba3 assures White of gaining at least a pawn.
          • 14...Nxd4 15.Be3 dxe4 16.Bxd4 exd3 17.Bxg7 Rh7 18.Bd4 gives White a small advantage in space and development.

    12...a6!?

    • Black plays an equally noncommittal move and keeps the position closed.
    • If 12...Be7 13.Qe2 Nf6 then:
      • 14.Bb2 Qd7 15.a4 Bb4 16.a5 0-0 17.Rfc1 give White a small advantage; Black's Bishop is in an awkward position.
      • 14.Bd2 Qd7 15.c5 g5 16.g4 Nh4 17.f3 gives White a small advantage with slightly stronger pawns.

    13.Re1!

    • White appears to be aiming to advance his e-pawn.
    • If 13.Bb2!? Qg5! 14.Re1 Bd6 15.c5 Bc7 16.Bf1 0-0-0 is equal.

    13...Qf6

    • Black will forstall the advance by putting pressure on White's d-pawn, which would be weakened if the e-pawn advances.
    • If 13...Bd6 14.cxd5 then:
      • 14...cxd5 15.e4 Nxd4 16.exd5 0-0 17.dxe6 Nxe6 18.Bb2 gives White a small advantage with stronger pawns, the Bishop pair on an open center and a slight edge in space.
      • 14...exd5?! 15.e4 dxe4 16.Nxe4 Be7 17.Bb2 0-0 18.Qc2 gives White a small advantage in space.

    14.Bb2 Bd6 15.Qf3

    • If 15.Rc1 0-0 16.Qg4 then:
      • 16...b5 17.cxd5 cxd5 18.a4 bxa4 19.Nxa4 Rfb8 20.Qd1 gives White stronger pawns and Black an edge in space.
      • 16...Qe7 17.c5 Bc7 18.Rcd1 Rfb8 19.Rb1 a5 is equal.

    15...0-0-0 16.Rad1!?

    • White's e-pawn is unlikely to become moble any time soon. The Rook is probably better in its original square.
    • If 16.h4 Kb8 17.a4! then:
      • 17...a5! 18.Red1 Bc7 19.Rac1 Nd6 20.Qxf6 Nxf6 21.Kg2 gives White a slight advantage in space.
      • If 17...Bb4 18.Rec1 then:
        • 18...a5 19.Rc2 Nh6 20.Qxf6 Nxf6 21.Kg2 Be7 22.b4 gives White a slight advantage in space.
        • 18...Nh6 19.Kg2 Qxf3+ 20.Kxf3 Nf6 21.cxd5 exd5 22.Ba3 gives White a small advantage in space.


    BLACK: Richard Rapport




    WHITE: Aleksandr Shimanov
    Position after 16.Ra1d1


    16...Rh5!?

    • It will do little good for now to cue heavy pieces in the h-file.
    • 16...Kb8 17.a4 Bb4 18.Rc1 dxc4 19.bxc4 g5 20.Red1 continues to give White a small advantage in space.

    17.Bf1!

    • White has a fair advantage.
    • 17.cxd5 cxd5 18.h4 Kb8 19.Rd2 Qe7 20.b4 continues to give White a small advantage in space.

    17...Rdh8

    • 17...Ne7 18.Be2 Qxf3 19.Bxf3 Rh3 20.e4 dxc4 21.bxc4 gives White a comfortable game.

    18.h3?!

    • The pawn is doomed. It is better to move somethin else.
    • If 18.e4! Rxh2 (this is a given) 19.exf5 gxf5 20.cxd5 then:
      • 20...exd5 21.Re8+ Rxe8 22.Kxh2 g5 23.Kg1 g4 24.Qg2 is equal; neither side has any target at which to strike.
      • If 20...cxd5 21.Bg2 Nb8 22.Rc1 Nc6 23.Kf1 f4 24.Ne2 continues to give White a small advantage.

    18...g5?!

    • It seems White's last move had the desired psychological effect. Correct, of course, is to take on h3.
    • If 18...Rxh3! 19.Bxh3 Rxh3 20.Qg4 then:
      • 20...Rh8 21.cxd5 exd5 22.Qf3 Qg5 23.Qg2 Bxg3 24.fxg3 is equal.
      • 20...Rh5 21.cxd5 Rg5 22.Qf3 exd5 23.e4 Bxg3 24.Kf1 gives White a small advantage in space.

    19.Bg2?!

    • This move covers nothing that isn't already covered and attacks nothing that can be taken.
    • If 19.g4! (where one can play a tactical stroke and when in doubt, play it) 19...Rh4 20.cxd5 cxd5 21.e4 then:
      • 21...Ne7 22.Rd3 Qxf3 23.Rxf3 f5 24.exf5 exf5 25.Rfe3 gives White a comfortable game as he threatens to win two piece for a Rook and plant a Rook on the seventh rank.
      • 21...dxe4?? drops a piece to 22.Nxe4! Qe7 23.gxf5.


    BLACK: Richard Rapport




    WHITE: Aleksandr Shimanov
    Position after 19.Bf1g2


    19...Rxh3!!

    • Black sacrifices the exchange in order to remove a defender; Black pieces can quickly come into the attack, while White's pieces are caught off balance and cannot easily come to the aid of the King.

    20.Bxh3?

    • However, there is no rule that says White must take the proffered Rook.
    • If 20.cxd5 Bxg3 21.fxg3 Rxg3 then:
      • If 22.Ne4! Rh1+ 23.Kxh1 Qh6+ 24.Kg1 Rxf3 25.dxe6 Qxe6 26.Bxf3 remains equal.
      • If 22.Qf2?? Qh6! 23.Kf1 then:
        • If 23...Nf6 24.Ne4 Rxg2! then:
          • 25.Nd6+ then White is toast after 25...Nxd6 26.Qxg2 Nxd5 27.Ke2 g4 28.Kd2 Qg5.
          • If 25.Qxg2 then Black wins after 25...Nxe4 26.dxc6 Nfg3+.
        • 23...cxd5?! 24.e4 Rg4 25.exf5 Rf4 doesn't win, but it still gives White a vastly superior position.
    • If 20.e4? then Black wins after 20...Bxg3!! 21.fxg3 Rxg3 22.Qf2 dxe4 23.Nxe4 Qh6.

    20...Rxh3!

    • White has only a pawn for the exchange, but his pieces are more active and trained on White's King position.

    21.Qg2

    • If 21.Ne2 Qh6! then:
      • If 22.cxd5 then Black wins after 22...cxd5 23.Rf1 Nf6 24.e4 dxe4 25.Qg2 Ng4.
      • 22.Kf1 Rh1+ 23.Ng1 g4 24.Qg2 Rh2 traps the Queen.

    21...Qh6!

    • Also good is 21...g4! 22.Rf1 Qg6 23.Ne2 Nf6 24.e4 Nxe4 when Black pieces are all in on the attack.

    22.Ne2 Nf6 23.cxd5 exd5 24.e4

    • If 24.Rf1 then Black wins after 24...Ne4 25.Bc1 Bxg3 26.fxg3 Nfxg3 27.Nxg3 Rxg3.

    24...Nxe4 25.Rf1 Bxg3 26.fxg3

    • If 26.Nxg3 Nexg3 27.fxg3 Ne3 then:
      • If 28.Qf3 g4 then:
        • If 29.Qf4 Rh1+ 30.Kf2 Nxd1+ 31.Rxd1 Qxf4+ 32.gxf4 Rxd1 practically leaves Black a Rook up.
        • 29.Qxf7 Rxg3+ 30.Kf2 Qh2+ 31.Ke1 Nc2#.
      • 28.Qe2 Rxg3+ 29.Kf2 Rg2+ 30.Ke1 Nc2+ 31.Kd2 g4+ wins the Queen.


    BLACK: Richard Rapport




    WHITE: Aleksandr Shimanov
    Position after 26.fg3:B


    26...Ne3 0-1

    • White is beat every way possible.
    • Aleksandr Aleskandrovich resigns.

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    Response to Jack Rabbit (Reply #7)

    Sat Sep 22, 2012, 01:29 PM

    27. Ziaziulkina - Guo Qi, Round 9



    There is no photo of Guo Qi available with an internet-friendly copyright

    Photo by Jon Sullivan from public-domain-photos.com (Public Domain)


    Natassia Ziaziulkina - Guo Qi
    World Junior Championships (Girls' Group), Round 9
    Athens, 11 August 2012

    Open French Game: Rubinstein Defense


    1.e4 e6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7

    • For a survey of the Open French Game, see Friedel-Yang, IT, Berkeley, California, 2011.

    5.g3

    • This is unusual; there is little point for White to fianchetto his King's Bishop after playing 1.e4 except to be unusual.

    5...Ngf6

    • If 5...Be7 6.Bg2 Ngf6 7.Nxf6+ Bxf6 then:
      • If 8.Nf3 0-0 9.0-0 e5 then:
        • If 10.Be3 exd4 11.Bxd4 c6 then:
          • If 12.a4 a5 13.Re1 then:
            • 13...Bxd4 14.Qxd4 Nf6 15.Qc5 Re8 16.Nd4 Bd7 17.c3 gives White a comfortable game (Short-Seirawan, Ol, Thessaloniki, 1988).
            • 13...Qc7 14.Ra3 Bxd4 15.Qxd4 Qb6 16.Rd3 Qxd4 17.Rxd4 gives White a small advantage in space (Hracek-Meier, Bundesliga 0506, Germany, 2006).
          • 12.Re1 Bxd4 13.Qxd4 Nb6 14.a4 Qxd4 15.Nxd4 gives White an early advantage in space (Volokitin-Tratar, Op, Ljubljana, 2002).
        • 10.c3 exd4 11.Nxd4 c6 12.Bf4 Ne5 13.Re1 gives White a small advantage in space (Makropoulou-Makka, Greek ChW, Athens, 2004).
      • If 8.Ne2 0-0 9.0-0 then:
        • 9...e5 10.d5 Be7 11.c4 a5 12.Be3 Nc5 13.f4 gives White a slight advantage in space (Tiviakov-Dumbacher, Dutch Ch, Hilversum, 2007).
        • If 9...Rb8 10.Nc3 then:
          • 10...Nb6 11.Be3 Nd5 12.Ne4 Nxe3 13.Nxf6+ Qxf6 14.fxe3 gives White the initiative and more space (Shirov-Pelletier, IT Rd 9, Biel, 2011).
          • 10...b5 11.Qd3 a6 12.a4 b4 13.Ne4 a5 14.Nxf6+ Nxf6 15.Bg5 gives White a clear advantage in space (Vachier Lagrave-Pelletier, IT Rd 8, Biel, 2011).

    6.Nxf6+ Nxf6 7.Bg2

    • If 7.Nf3 b6 then:
      • If 8.Bb5+ Bd7 then:
        • If 9.Be2 Bc6 10.0-0 then:
          • If 10...Bd6 11.Ne5 Bxe5 12.dxe5 then:
            • If 12...Qd5 13.Qxd5 Nxd5 then:
              • 14.Bd2 a5 15.f3 0-0-0 16.Rfd1 h6 17.a3 gives White a slight advantage in space (Bologan-Laznicka, World Cup, Khanty-Mansiysk, 2009).
              • 14.Rd1 0-0-0 15.Bd2 Ne7 16.c4 Be4 17.Bc3 draw (Vachier Lagrave-Meier, World Cup, Khanty-Mansiysk, 2009).
            • 12...Qxd1 13.Rxd1 Nd7 14.f4 0-0-0 15.Be3 Nb8 16.Kf2 gives White a small advantage in space (Meszaros-Varga, Op, Heviz, Hungary, 2010).
          • 10...Bb7?! 11.Ne5! a6 12.c4 Bd6 13.Bf3 Qc8 14.Bc6+ gives White a very comfortable game (Timofeev-Rianzantsev, Russian Ch HL, Ulan Ude, 2009).
        • 9.a4 a6 10.Be2 Bc6 11.0-0 Bd6 12.Ne5 Bxe5 13.dxe5 gives White a small-to-fair advantage in space (Morozevich-Peletier, IT, Biel, 2011).
      • If 8.Bg2 Bb7 9.0-0 then:
        • If 9...Be7 then:
          • If 10.Qe2 0-0 11.Rd1 Qc8 12.c4 Re8 then:
            • 13.b3 then:
              • 13...c5 14.Bb2 cxd4 15.Rxd4 Qc7 16.Qe5 Rac8 17.Rad1 gives White a small in space (Svidler-Gelfand, FIDE Knock Out, Moscow, 2001).
              • 13...a5 14.Bh3 Nd7 15.Qd3 Qd8 16.Bg2 Nf6 17.Ne5 gives White a comfortable game (Anand-Topalov, Amber Blind, Monte Carlo, 2001).
            • 13.Bh3 Be4 14.Ng5 Bf5 15.Bg2 h6 16.Nf3 gives White a small advantage in space (Anand-Topalov, Amber Rapid, Monte Carlo, 1997).
          • 10.c4 0-0 11.b3 a5 12.Bb2 a4 13.Qe2 is equal (Shirov-Anand, World Rpd Ch, Mainz, 2004).
        • 9...Bd6 10.Qe2 0-0 11.Rd1 Qc8 12.Bg5 Ne4 13.Be3 is equal (Nakamura-Grachev, Tal Mem Blitz, Moscow, 2010).

    7...e5

    • If 7...c5 then:
      • If 8.Nf3 cxd4 9.Qxd4 Qxd4 10.Nxd4 then:
        • If 10...Bc5 11.Nb3 Bd6 12.Be3 Nd5 then:
          • 13.Bc5 Bxc5 14.Nxc5 Nb4?! 15.Kd2 Nc6 16.Bxc6+ bxc6 gives White a clear advantage in activity, space and development (Tseshkovsky-Polovodin, Op, St. Petersburg, 2001).
          • If 13.Bd4 0-0 14.0-0-0 then:
            • 14...b5?! 15.Bc5 Bxc5 16.Nxc5 g6 17.Bxd5 exd5 18.Rxd5 gives White an extra pawn, a better center and more space (Bogut-Benderac, IT B, Sarajevo, 2008).
            • 14...Bd7 15.Na5 b6 16.Nc4 Bb4 17.c3 Rac8 18.b3 gives White a small advantage in space.
        • If 10...a6 11.Bf4 then:
          • 11...Nd5 12.Bd2 b5 13.a4 b4 14.Nc6 gives White a small advantage in space (Alekseev-Pridorozhni, World Cup, Khanty-Mansiysk, 2009).
          • 11...Be7?! 12.0-0! 0-0 13.Rad1 Rd8 14.c4 gives White a comfortable game (So-Yang, IT, Montreal, 2012).
      • If 8.Ne2 then:
        • If 8...Qb6 9.0-0 Bd7 then:
          • If 10.c4 cxd4 11.Nxd4 then:
            • 11...Rd8 12.Be3 Bc5 13.b4 Qxb4 14.Rb1 Qc3 15.Bxb7 gives White a small advantage with greater activity for his pieces; Black has more space, but only as long as the queen is c3 (Van der Wiel-Berg, IT C, Wijk aan Zee, 2007).
            • 11...Bc5 12.Nb3 Bc6 13.Bxc6+ Qxc6 14.Na5 Qb6 15.Qa4+ gives White the initiative and a slight edge in space; Black's King is force to lose its castling privilege, but he has more active pieces (T. Horvath-Behm, Euro Club Cup, Panormo, Greece, 2001).
          • 10.Bg5 cxd4 11.Nxd4 Be7 12.c3 e5 13.Nf3 gives White the initiave and Black more space (Zhong Zhang-Dableo, Op, Kuala Lampur, 2008).
        • If 8...Be7 9.0-0 0-0 then:
          • 10.c4 cxd4 11.Qxd4 Qxd4 12.Nxd4 e5 13.Nb5 gives White a small advantage in space (Vavarin-Khudyakov, Golden Autumn, Alushta, 2001).
          • 10.c3 h6 11.Qc2 Qb6 12.dxc5 Bxc5 13.b4 Bd6 is equal (Gudmundsson-Gudmundsdottir, Op, Reykjavik, 2009).

    8.Ne2

    • If 8.Qe2 Qxd4 9.Nf3 then:
      • If 9...Qd5 10.0-0 Bd6 11.Re1 Bg4 then:
        • 12.h3 Bxf3 13.Bxf3 e4 14.Bxe4 Nxe4 15.Qxe4+ Qxe4 16.Rxe4+ is equal (Svidler-Anand, Amber Rapid, Monte Carlo, 2005).
        • 12.Nxe5 Bxe2 13.Bxd5 Nxd5 14.Rxe2 0-0 15.Nc4 gives White a small advantage in space (Apicella-Vaisser, French Ch, Chartres, 2005).
      • If 9...Qe4 10.Qxe4 Nxe4 11.Nxe5 then:
        • If 11...Nc5 12.Be3 f6 then:
          • 13.Nf3 Bd7 14.0-0-0 0-0-0 15.Rd5 Na4 16.Rhd1 gives White a small advantage in space (Pavasovic-B. Kovacevic, Op, Rijeka, 2005).
          • 13.Nc4 Be6 14.Na5 0-0-0 15.b4 Ne4 16.0-0 f5 si equal (Svidler-Bareev, Amber Rapid, Monte Carlo, 2005).
        • 11...Nf6 12.Be3 Bd6 13.Nc4 Be7 14.0-0-0 0-0 15.Bf4 gives White a small advantage in space (Timman-Hobber, Politiken Cup, Helsignør, 2012).

    8...exd4 9.Qxd4 Qxd4?! (N)

    • 9...Be7 then:
      • If 10.Bf4 0-0 11.0-0-0 then:
        • 11...Bg4?! 12.Qe3!? Bd6 13.Bxd6 cxd6 14.f3 Re8 15.Qd2 gives White a small advantage in space (A. Kovacevic-Teofilovic, Op, Djakovo, Croatia, 2005).
        • 11...c6 12.Rhe1 Qa5 13.Qe5 Bd8 14.Qxa5 Bxa5 15.c3 gives White a slight advantage in space.
      • 10.0-0 0-0 11.Rd1 Qxd4 12.Rxd4 c6 13.Rd3 is equal.

    10.Nxd4!

    • White has a comfortable game with small advantage in space and command of the long light diagonal, which slows down Black from completing her development.

    10...Bb4+

    • If 10...Bd6 11.0-0 0-0 12.Nb5 then:
      • 12...Bf5 13.Nxd6 cxd6 14.Bxb7 Rab8 15.Bg2 Bxc2 16.b3 gives White stronger pawns and the Bishop in an open center.
      • 12...Re8 13.c4 Rd8 14.Nxd6 Rxd6 15.Bf4 Rd7 16.Rfe1 gives White the Bishop pair in an open center

    11.c3 Ba5

    • 11...Bc5 drops a pawn to 12.Nb5 Bb6 13.Bf4 0-0 14.Nxc7 Bxc7 15.Bxc7.

    12.0-0

    • White continues to enjoy a comfortable game.

    12...0-0 13.Bf4!?

    • White develops his last piece.
    • If 13.a4 then:
      • 13...c6 14.Bg5 Nd5 15.Rfe1 f6 16.Bd2 Rd8 17.Nb3 continues to give White a comfortable game.
      • 13...Bb6 14.Be3 a6 15.Rfe1 Rd8 16.a5 Ba7 17.Nb3 continues to give White a comfortable game.


    BLACK: Guo Qi




    WHITE: Natassia Ziaziulkina
    Position after 13.Bc1f4


    13...Bb6!

    • White still has a small advantage in space.

    14.Nb5 Ne8

    • 14...c6 15.a4 cxb5 16.a5 Nh5 17.axb6 Nxf4 18.gxf4 continues to give White a small advantage in space.

    15.a4! a5 16.Na3

    • 16.Rad1!? c6! 17.Nd4 Bg4 18.Rde1 Bxd4 19.cxd4 gives White only a small advantage in space.

    16...c6 17.Nc4

    • 17.Rfd1!? Be6! 18.Bf1 Nf6 19.Nc4 Bxc4 20.Bxc4 gives White the Bishop pair and the advantage in space; Black may challenge White's command of the d-file.

    17...Bd8 18.Rfe1 Be6

    BLACK: Guo Qi




    WHITE: Natassia Ziaziulkina
    Position after 18...Bc8e6


    19.Bf1

    • If 19.Ne5 Nf6 then:
      • 20.Nf3 Bb6 21.Be3 Bxe3 22.Rxe3 Rfe8 23.Rae1 Kf8 is equal.
      • If 20.Be3!? Bc7! then:
        • 21.Nd3 Nd7 22.Bf4 Bxf4 23.Nxf4 Bb3 24.Nd3 Rad8 is equal.
        • 21.Bd4 Rad8 22.Nd3 Rfe8 23.Re2 Bf5 24.Rxe8+ Rxe8 is equal.

    19...Bc7

    • 19...Nf6 20.Nd6! Bc7 21.c4 Bxd6 22.Bxd6 Rfd8 23.Rad1 gives White a small advantage in space.

    20.Bxc7

    • 20.Be5!? Bxc4! 21.Bxc4 Bxe5 22.Rxe5 Nd6 23.Bd3 gives White a slight advantage in space.

    20...Nxc7 21.Nb6 Rad8 22.Nc4!?

    • 22.Rad1 Rxd1 23.Rxd1 Re8 24.f4 continues to give White a small advantage in space.

    22...Bxc4!

    • White still has a slight advantage.

    23.Bxc4 Rfe8 24.Rad1!?

    • The Rook will only have to move again after Black takes on e1.
    • 24.Kg2 Rxe1 25.Rxe1 Kf8 26.Kf3 Rd2 27.Re2 continues to give White a narrow advantage.


    BLACK: Guo Qi




    WHITE: Natassia Ziaziulkina
    Position after 24.Ra1d1


    24...Rxe1+!

    • The game is equal.

    25.Rxe1 Kf8 26.Re2 Rd1+ 27.Kg2 Ra1 28.Bb3!?

    • White blocks the Rook's escape route.
    • If 28.Rd2 Ke7 29.Bxf7 then:
      • 29...Rxa4 30.Bb3 Ra1 31.Re2+ Kd6 32.Rd2+ Kc5 remains equal.
      • 29...Kxf7?! 30.Rd7+ Kf6 31.Rxc7 Rxa4 32.Rxb7 gives White a strong game with an extra pawn and an active Rook.


    BLACK: Guo Qi




    WHITE: Natassia Ziaziulkina
    Position after 28.Bc4b3


    28...Na6!

    • Black threatens 29...Nc5 with a small advantage.

    29.Bc2

    • If 29.Re5 b6 then:
      • 30.Bc2 Ra2 31.Bf5 g6 32.Bd7 Nc5 33.Re8+ Kg7 gives Black a small advantage; each side will take a pawn.
      • 30.Rf5 f6 31.Bc2 Ra2 32.Rf3 Nc5 33.Bxh7 Rxb2 gives Black stronger pawns. and a small advantage in space

    29...Nc5

    • 29...g6! 30.b3 Nc5 31.Re5 b6 32.Re3 Ra2 gives Black the initiative and a clear edge in activity.

    30.Re5 b6

    • 30...Rc1!? 31.Bxh7 b6 32.Bf5 g6 33.b4 Nxa4 is equal.

    31.b4 axb4 32.cxb4 Nxa4 33.Re3!?

    • This doesn't do a lot for White. The third rank might be more navigable than fifth, but not appreciably.
    • If 33.Bf5 (threatening 34.Bd7) then:
      • 33...g6 34.Bd7 Rc1 35.Re8+ Kg7 36.Rc8 Nb2 continues to give Black a slight advantage.
      • 33...Rd1!? proves pointless after 34.Bc2! Ra1 35.Bf5.


    BLACK: Guo Qi




    WHITE: Natassia Ziaziulkina
    Position after 33.Re5e3


    33...b5!

    • Black has a small advantage in space and a tactical edge. White cannot take the pawn at h7 without her Bishop becoming trapped nor can White shift the attack to f7 withe the Bishop becoming pinned on b3.

    34.Bb3?!

    • Whit apparently has 36.Rf3 in mind.
    • If 34.Rf3 Nb6! 35.Be4 then:
      • 35...Nd5 36.Bxd5 cxd5 37.Rd3 Ra4 38.Rxd5 Rxb4 leaves Black with an extra pawn, but White has the more active Rook.
      • 35...Rc1!? 36.Bxh7 Nd5 37.Be4 Ke7 38.Bxd5 cxd5 gives Black a small advantage, but far from a win; Black would have an outanding advantage in a King-and-pawn ending..

    34...Ra3!

    • This is crippling to White. The Rook is tied to the third rank and it really isn't a good idea to move the Bishop, which allows the exchange at e3 resulting in another pawn weakness.

    35.Kf3!?

    • This covers the Rook with the King so that White will not have to recapture with the pawn. 35.Rf3 accomplishes the same thing and better protects White's f-pawn.
    • If 35.Rf3 f6 36.h4 h6 then:
      • 37.Bd1 Rxf3 38.Kxf3 Nc3 39.Bb3 Ke7 40.Ke3 Na4 continues to give Black an extra pawn and White a better minor piece in the poistion.
      • If 37.Bc2 Rxf3 38.Kxf3 then:
        • 38...Ke7 39.Ke4 Nb6 40.Bb3 Na8 41.h5 Nc7 gives Black the advantage with the extra pawn and the threat of 42...Na6,, but it will be difficult for her to win while White has a more active King and a Bishop with pawns on both wings.
        • If 38...Nb6 39.Be4 then:
          • 39...Nd7 40.Ke3 c5 41.Bc6 Ne5 42.Bxb5 cxb4 continues to give Black a small advantage; White has compensation for the pawn minus in having a Bishop against a Knight with pawns on both wings.
          • 39...Nd5!? 40.Bxd5 cxd5 41.Ke3 Ke7 42.Kd4 Kd6 is equal.

    35...c5!

    • Black obtains a passed pawn and drives away the Bishop.

    36.bxc5 Nxc5 37.Bd5?

    • White's best shot now is shift the attack to h7.
    • If 37.Bc2 b4 then:
      • 38.Ke2 g6 39.Kd2 Ra7 40.Bb1 Rd7+ 41.Kc2 b3+ gives Black an extra pawn (passed) and better piece coordination. The Black King will be activated when needed.
      • If 38.h4? (intending 39.h5 and 40.Bxh7) then after 38...b3! 39.Bb1 g6 40.Rc3 Na4 41.Rd3 Kg7 Black's passer is dangerous.


    BLACK: Guo Qi




    WHITE: Natassia Ziaziulkina
    Position after 37.Bb3d5


    37...b4!

    • White's pieces are too far away from the center of gravity to have any real effect. Black will win.

    38.Ke2 b3 39.Kd2 Ra2+ 40.Kc1 Rxf2!

    • Black now has a pawn majority on both wings.

    41.h4 b2+ 42.Kb1 Na4!

    • The Knight covers the passed pawn, freeing the Rook for action elsewhere.

    43.Be4

    • If 43.Bc4 then Black wins after 43...Rg2 44.Rf3 Ke7 45.Bf1 Rd2 46.Rd3 Rf2.

    43...f5 44.Bc2


    BLACK: Guo Qi




    WHITE: Natassia Ziaziulkina
    Position after 44.Be4c2


    44...Rf1+!

    • The Rook maneuver enhances White positions.

    45.Ka2 Ra1+ 46.Kb3 b1Q+ 47.Bxb1 Rxb1+ 48.Kxa4

    • The White King is conined to the a-file, unable to assist in the defense against Black's pawn ajority on the opposite wing.


    BLACK: Guo Qi




    WHITE: Natassia Ziaziulkina
    Position after 48.Kb3a4:N


    48...g6 49.h5

    • Reserve pawn tempi is prescious and shouldn't be wasted.
    • If 49.Re2 then Black wins after 49...Kg7 50.Ka3 Kh6 51.Re3 Rh1 52.Kb4 Rh3.

    49...Kg7 50.hxg6 hxg6 51.g4 Kf6 52.gxf5 gxf5

    • With the White King confined to the opposite flank, White cannot prevent Black from reaching the Lucena position.


    BLACK: Guo Qi




    WHITE: Natassia Ziaziulkina
    Position after 52...gf5:p


    53.Re8 f4 54.Ka3 Kf5 55.Ka2 Rb7 56.Rf8+ Kg4 0-1

    • 57.Rc8 Kg3 58.Rg8+ Kf2 59.Rf8 f3 then:
      • If 60.Ka3 Kg2 61.Rg8+ Kf1 62.Rf8 f2 then:
        • 63.Rf6 Rg7! 64.Kb4 Rg5! (Diagram)
        • This is the Lucena Position; now follows 65.Kc3 Ke2 66.Re6+ Kf3 67.Rf6+ Ke3 68.Re6+ Kf4 69.Rf6+ Rf5 and the pawn queens.
        • 63.Ka4 Rg7 64.Kb5 Rg5+ is again the Lucena posistion.
      • If 60.Rf6 Kg2 61.Rg6+ Kf1 62.Rf6 f2 then:
        • 63.Rf8 Rg7 64.Kb3 Rg5! is again the Lucena position.
        • 63.Rf5 Rb4 64.Ka3 Rg4 wins for White.
    • Nastya resigns.


    Analysis Diagram
    BLACK: Guo Qi




    WHITE: Natassia Ziaziulkina
    Position after 64...Rg7g5
    The Lucena Position


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    Response to Jack Rabbit (Reply #1)

    Mon Sep 3, 2012, 05:33 PM

    9. French National Championship, Pau



    Château de Pau, French Pyrenees
    Photo by |Jibi44 (http://commons.wikimedia.org/wiki/User:Jibi44) from Wikimedia Commons (http://en.wikipedia.org/wiki/File:Château_de_Pau.JPG)
    (Creative Commons License, Attribution/Share Alike)

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    Response to Jack Rabbit (Reply #9)

    Mon Sep 3, 2012, 05:36 PM

    10. Vachier Lagrave - Lagarde, Round 3




    Maxime Vachier Lagrave
    Photo by Brittle Heaven (http://commons.wikimedia.org/wiki/User:Brittle_heaven) in Wikimedia Commons (http://commons.wikimedia.org/wiki/Category:Maxime_Vachier-Lagrave)
    (Creative Commons License, Attribution/Share Alike)


    Maxime Vachier Lagrave - Maxime Lagarde
    French Championships (General Group), Round 3
    Pau, 15 August 2012

    Symmetrical English Game: Mikenas-Carls Opening


    1.c4 Nf6 2.Nc3 e6 3.e4 c5 4.Nf3 Nc6 5.Be2 e5 6.d3 h6 (N)

    • Most English games are less theoretical than openings featuring a center pawn.
    • If 6...d6 7.0-0 Be7 then:
      • If 7...Be7 then:
        • If 8.Ne1 0-0 9.f4 exf4 10.Bxf4 then:
          • If 10...Be6 11.Nc2 then:
            • If 11...Nd7 12.Qd2 h6 then:
              • 13.Ne3 Nde5 14.Rf2 Ng6 15.Bg3 Bg5 16.Re1 Nd4 gives Black a small advantage in space (Golubovic-B. Vuckovic, Bosnian ChT, Vogasca, 2007).
              • 13.b3 Nde5 14.Be3 Bg5 15.Bxg5 hxg5 16.d4 gives White a slight advantage in space (Rublevsky-Bu Xiangzhi, Aeroflot Op, Moscow, 2002).
            • 11...Rc8 12.Qd2 Nd7 13.Nd5 Nde5 14.a3 Ng6 15.Be3 gives White a small advantage in space (Beim-Kummer, Austrian ChT, 2001).
          • If 10...Nd4 11.Nc2 then:
            • 11...Nxc2!? 12.Qxc2! Be6 13.Rad1 Ne8 14.d4 cxd4 15.Nb5 gives White a comfortable game (Agdestein-L'Ami, TM, Amsterdam, 2008).
            • 11...Qb6 12.b3 Bd7 13.Nxd4 cxd4 14.Nd5 Nxd5 15.cxd5 gives White a small advantage in space.
        • If 8.a3 0-0 9.Rb1 a5 10.Ne1 then:
          • If 10...Ne8 11.Nc2 then:
            • 11...Bg5 12.b4 axb4 13.axb4 Bxc1 14.Qxc1 b6 15.Nd5 is equal (Peng Xiaomin-Liang Jinrong, ZT, Hei Bei, 2001).
            • 11...Nc7 12.f4 exf4 13.Bxf4 Bf6 14.Bg4 Ne6 15.Be3 is equal (Rublevsky-Vasquez, Ol, Elista, 1998).
          • 10...Nd4 11.Nc2 Bd7 12.f4 Nxc2 13.Qxc2 exf4 14.Bxf4 (Yandemirov-Shestoperov, Russia Cup, Samara, 2002).
      • If 7...g6 then:
        • If 8.a3 Bg7 9.b4 0-0 then:
          • 10.Rb1 Ne8 11.Nd5 Nc7 12.bxc5 dxc5 13.Re1 Ne6 14.Bb2 draw (Andreikin-Khalifman, Aeroflot Op, Moscow, 2012).
          • 10.bxc5 dxc5 11.Rb1 b6 12.Nd5 Ne8 13.Nd2 Nd6 is equal (Malakhov-Shipov, Moscow Ch, 2003).
        • If 8.Ne1 Bg7 9.f4 Nd4 10.Nc2 then:
          • If 10...0-0 then:
            • If 11.Ne3!? exf4 12.Rxf4 Be6 13.Rf2 a6 gives Black a small advantage in space ( Moranda-Markowski, Polish Ch, Poznan, 2005).
            • 11.fxe5 dxe5 12.Bg5 Qd6 13.Nxd4 cxd4 is equal
          • 10...h6 11.Nxd4 exd4 12.Nb1 0-0 13.Na3 Bd7 14.Rb1 is equal (Pogosian-Shipov, Chigorin Mem Op, St. Petersburg, 2010).

    7.0-0

    • The players have broken from the book well before completing development. For what it's worth, White has a slight edge in space.

    7...g6!?

    • This move weakens Black's kingside unnecessarily. Black should save time and develop his Bishop at e7.
    • 7...Be7 8.Bd2 d6 9.Nd5 0-0 10.h3 Bd7 11.Qb3 continues to give White a slight edge.


    BLACK: Maxime Lagarde




    WHITE: Maxime Vachier Lagrave
    Position after 7...g7g6


    8.b4!?

    • White has the right idea (attacking c5), but goes about it the wrong way. The pawn should be attacked by a piece from a distance, so that it remains at c5.
    • If 8.Be3! d6 9.a3 Bg7 (Black must develop his Bishop on the flank as a preparation to castling) 10.b4 then:
      • 10...b6 11.Rb1 0-0 12.Nd5 then:
        • 12...Nxd5 13.cxd5 Nd4 14.bxc5 Nxe2+ 15.Qxe2 bxc5 16.Nd2 continues to give White a small advantage in space.
        • 12...Nd4 13.bxc5 Nxe2+ 14.Qxe2 dxc5 15.Qd2 Kh7 16.Qb2 gives White a small advantage in space.
      • 10...Nd4?! 11.bxc5 dxc5 12.Nd5 Nxe2+ 13.Qxe2 gives White a comfortable game.

    8...Nxb4?!

    • Black fails to take advantage of White's inaccuracy.
    • If 8...cxb4! (this pawn exchange frees Black's game) 9.Nd5 then:
      • If 9...Bg7 10.a3 bxa3 then:
        • 11.Rxa3 b6 12.Be3 Bb7 13.Qc1 d6 14.Bd1 gives a superior center against Black's extra pawn
        • 11.Bxa3!? d6! 12.h3 0-0 13.Qb3 b6 14.Bb2 Na5 is equal
      • If 9...Bc5 10.Nxe5 then:
        • 10...Bd4 11.Nxf6+ Qxf6 12.Ng4 Qg7 13.Rb1 d6 14.Ne3 gives White a comfortable game with mor freedom.
        • 10...Nxe5?! 11.Bb2! Nxd5 12.cxd5 Qe7 13.d4 Bd6 14.f4 gives White a comfortable game.

    9.Nxe5!

    • White has a comfortable game with a better center and a small advantage in space.

    9...d6 10.a3?!

    • White misses a more aggressive continuation and throws away his advantage.
    • 10.Qa4+ Bd7 11.Nxd7 Qxd7 12.Nb5 Nc6 13.Rb1 continues to give White a comfortable game with two Bishops, a better center, superiority on the queenside and more space.

    10...dxe5!

    • The game is equal.

    11.axb4 cxb4 12.Nd5 Nxd5 13.cxd5 Qb6!?

    • Again we have an example of the right idea played the wrong way. Black is right to make a show of force on the queenside, where he has a cluster of three passed pawns, but would do better to stake out the claim with a pawn.
    • If 13...a5 14.d4 Bg7 15.Bb2 exd4 16.Bxd4 0-0 17.f4 remains equal.

    14.d4!?

    • Black sacrifices a second pawn, which is usually a dubious proposition.
    • 14.Qc2! Bc5 15.Bb2 Bd4 16.Bxd4 Qxd4 17.Qc7 gives White a slight advantage ovarall with a great deal more space; Black still has an extra pawn.


    BLACK: Maxime Lagarde




    WHITE: Maxime Vachier Lagrave
    Position after 14.d3d4


    14...exd4!

    • Black has a small advantage with two extra pawns; White has a small advantage in space and greater development.

    15.Bf4 Bc5 16.e5

    • 16.Bc4 0-0 17.Bxh6 Re8 18.Qf3 Bd6 19.g3 Bd7 continues to leave Black a pawn to the good.

    16...Bf5!?

    • The Bishop is vulnerable to attack from here.
    • 16...0-0 17.Bxh6 Re8 18.Bf4 Bf5 19.Bc4 d3 still gives Black an extra pawn.

    17.Bc4!?

    • White misses an opportunity to exploit the inaccuracy of Black's last move.
    • If 17.Bd3! Bxd3 18.Qxd3 g5 19.Bd2 0-0-0 20.d6 Kb8 continues to give Black two extra pawns and White more space.

    17...g5

    • The game is equal.
    • If 17...h5 18.Qa4+ then:
      • 18...Bd7 19.Qb3 0-0 20.d6 Kh7 21.g3 Bh3 still leaves Black two pawns to the good with an attack to White's King's Rook.
      • If 18...Kf8 then:
        • 19.d6 h4 20.h3 Rh7 21.Qb3 Re8 continues to give Black a pair of extra pawns; White has more space.
        • 19.Qb3 Kg7 20.d6 Rhf8 21.h3 Rac8 22.Bg5 f6 gives Black two extra pawns and the initiative; White has a slight advantage in space

    18.Bg3!?

    • The Bishop is not as safe here as if he retreated in the other direction.
    • 18.Bd2 0-0 19.d6 Bg6 20.Qf3 Rae8 21.Qg3 d3 remains equal.

    18...h5!?

    • The pawn advance would work bett if Black were to bring more support for the maneuver to the kingside first.
    • If 18...Qg6 19.Qa4+ Kf8 20.d6 Be6 21.Qb5 b6 gives Black a slight advantage.


    BLACK: Maxime Lagarde




    WHITE: Maxime Vachier Lagrave
    Position after 18...h6h5


    19.e6!

    • White has a small advantage in space.

    19...fxe6 20.dxe6 Ke7 21.Qf3?!

    • The queen will be vulnerable to frontal attacks here.
    • If 21.h4! then:
      • If 21...Rac8 22.Qf3 then:
        • 22...Rcf8 23.hxg5 Bg6 24.Qe2 Rf5 25.Bd3 Rhf8 26.Rfe1 leaves White with a superior game owing to flexibility in the center in spite of being down two pawns.; Black faces a grim uphill fight to preserve a half point.
        • If 22...Rhf8? then White wins after 23.Rae1 g4 24.Qf4 Kd8 25.Qe5.
      • If 21...Qc6? 22.Re1 Raf8 23.Qe2 g4 then White wins after 24.Qd2 Rhg8 25.Ra5 Qb6 26.Rb5 Qc6 27.Bf4.
      • If 23...d3 then White wins after 24.Bxd3 Bd4 25.Ra5 Qc3 26.Bd6+!! Kxd6 27.Bxf5.

    21...Raf8!

    • Black has leveled the game.

    22.Qd5 Qc6?!

    • Black invites an exchange of Queens that gives White the opportunity to regain the upper hand.
    • Better is 22...d3 23.Rfe1 Qc6 24.Qe5 Rf6 25.h4 g4 26.Bd5 with equality.

    23.Qe5!

    • White again has a comfortable game.
    • 23.Qxc6? bxc6! 24.h4 g4 25.Rfe1 Bb6 leaves Black up by two pawns and winning.

    23...h4??

    • This move looks like a killer and it is. It's suicidal.
    • If 23...Rf6 24.Rfc1 Bd6 25.Qxd4 then:
      • 25...Rd8 26.Qe3 Bf4 27.Bxf4 gxf4 28.Qxa7 gives White a comfortable game with stronger pawns.
      • If 25...Bxg3? then White wins after 26.hxg3! Rd8 27.Qxa7 Rc8 28.Qe3.


    BLACK: Maxime Lagarde




    WHITE: Maxime Vachier Lagrave
    Position after 23...h5h4


    24.Bd5!

    • White also wins after 24.Qg7+! Ke8 25.Bb5 Rh7 26.Bxc6+ bxc6 27.Qe5.

    24...Qb5 25.Qc7+ Kf6 26.Be5+ Kg6 27.Bxh8 1-0

    • Also good is 27.Qg7+ Kh5 28.f4 then:
      • If 28...Rfg8 then after 29.Qf7+ Bg6 30.Qf6 Be7 31.Qxe7 White wins.
      • If 28...d3+ then White wins after 29.Kh1 Rfg8 30.Qf7+ Bg6 31.Qf6 Be7 32.Qxe7.
    • After the text move, if 27...Rxh8 then White wins after 28.Qf7+ Kh6 29.Qf6+ Kh7 30.Qxf5+ when White has the King trapped in a mating net.
    • 27...Kh5 28.Bg7 Qb6 29.Qe5 Qd6 30.Qxd6 Bxd6 31.Bxf8 leaves White with two Rooks and a Bishop against two Bishops and two extra pawns.
    • M. Lagarde resigns.

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    Response to Jack Rabbit (Reply #9)

    Sun Sep 9, 2012, 02:09 PM

    21. Edouard - Tkachiev, Round 9

    Romain Edourad is 21 years old. This is the first time he has won or shared the French national title.

    Vladislav Tkachiev, originally from Russia and Kazakhstan, lives in Cannes and has taken French citizenship. He won the French national championship in 2006 and the European championship in 2007.



    Romain Edouard
    Photo by Brittle Heaven (http://commons.wikimedia.org/wiki/User:Brittle_heaven) in Wikimedia Commons (http://fr.wikipedia.org/wiki/Fichier:Edouard_rd7_4thEUIO.JPG)
    (Creative Commons License, Attribution/Share Alike)


    Romain Edouard - Vladislav Tkachiev
    French Championships (General Group), Round 9
    Pau, 22 August 2012

    East India Game: Nimzo-Indian Defense (Rubinstein Opening/Hübner Variation)


    1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Bd3 c5 6.Nf3 Nc6 7.0-0 Bxc3 8.bxc3

    • For moves and variations of the Hübner Variation up to here, see Bacrot-David, French ChT, Mulhouse, 2011.

    8...d6 9.e4 e5 10.d5

    • If 10.h3 then:
      • If 10...b6 11.Be3 then:
        • 11...Re8 12.d5 Ne7 13.Kh2 Ng6 14.g3 h6 15.Ng1 is equal (Vasilevich-Makropoulou, Euro ChW, Rijeka, 2010).
        • 11...Qe7 12.d5 Na5 13.Nd2 h6 14.Qe2 gives White a small advantage in space (Andriejunas-Plunge, IT, Vilnius, 1969).
      • If 10...h6 11.Be3 b6 12.d5 Ne7 13.Kh2 then:
        • 13...Nh7 14.Nd2 f5 15.exf5 Bxf5 16.Ne4 Nf6 17.Ng3 gives White a slight advantage in space (I. Ibragimov-Browne, Op, Philadelphia, 1992).
        • If 13...g5?! 14.Ng1?! then:
          • 14...Nh7!? 15.Ne2! f5 16.exf5 Bxf5 17.Ng3 Bg6 18.Qc2 gives Black a small advantage in space (Jussupow-Gómez Esteban, Rpd IT, Oviedo, 1993).
          • 14...Ng6! 15.Rb1 Bd7 16.Re1 Nf4 17.Nf3 N6h5 18.Bc2 is equal.

    10...Ne7 11.Nh4

    • If 11.Nd2 then:
      • If 11...h6 12.Re1 Nh7 13.Nf1 f5 then:
        • 14.exf5 Bxf5 15.Ng3 Bxd3 16.Qxd3 Qd7 17.a4 Rf7 18.Re2 is equal (Zilberman-Psakhis, IT, Hertzliya, Israel, 1993).
        • 14.f3 f4 15.Rb1 g5 16.g4 h5 17.h3 Kf7 gives Black a comfortable game.(Hesselbarth-Jaracz, Euro Ch, Dresden, 2007).
      • If 11...Ng6 12.g3 Bh3 13.Re1 Ne8 then:
        • 14.Rb1 Qd7 15.Rb2 b6 16.f3 h6 17.Qe2 f5 is equal (Taimanov-Vyzmanavin, IT, Leningrad, 1984).
        • 14.f3 Qc8 15.Bf1 Bd7 16.Bg2 f5 17.exf5 Bxf5 is equal (T. Ernst-Zadrusny, Rilton Cup 0607, Stockholm, 2006).

    11...Kh8

    • If 11...h6 then:
      • If 12.f4 Ng6 13.Nxg6 fxg6 14.f5 then:
        • If 14...b5 15.g4 bxc4 16.Bc2 then:
          • If 16...Qa5 17.Qf3?! then:
            • 17...g5 18.Rf2 Bd7 19.Rg2 Rab8 20.h4 Nh7 gives Black a fair advantage in space; Whit has stronger pawns (Bjork-Bergstrom, IT Jr, Hallsberg, 1975).

            • 17...gxf5 18.gxf5 Bd7 19.Kh1 Kh8 20.Rg1 Rab8 gives Black more space, but the sacrifice 21.Bxh6!! opens up BLack's kingside (Visier Segovia-Mecking, Ruy López Mem, Las Palmas, 1975).

          • If 16...Rb8 then:
            • 17.g5? hxg5 18.Bxg5 gxf5 19.exf5 Qa5 leaves Black with an extra pawn, the initiative and a lot more space; White is toast (Khokhlov-Rieseler, Corres, 1989).

            • 17.a4 Qa5 18.Bd2 g5 19.Qe1 Nxg4 gives White an extra pawn and more space.

        • If 14...gxf5 15.exf5 then:
          • 15...Qe7 16.Qe2 b6 17.Bd2 Ba6 18.Be4 Rf7 is equal (Knaak-Csom, IT, Amsterdam, 1974).

          • 15...e4 16.Be2 Qe7 17.Be3 Bd7 18.Qe1 Nh7 19.g4 gives White a slight advantage in space (Gligoric-Mecking, IT, San Antonio, 1972).

      • If 12.Qf3 Ng6 13.Nf5 Bxf5 then:
        • 14.Qxf5 Nh7 15.Rb1 Qe7 16.g3 Rac8 17.h4 gives White a comfortable game (Hort-Adamski, IT, Rubinstein Mem, Polanica Zdroj, 1977).

        • 14.exf5 e4 15.Bxe4 Ne5 16.Qe2 Qa5 17.Bd2 Rfe8 gives Black a small advantage with stronger pawns an a slight edge in space (Potlin-S. Zhigalko, Russian ChT, Olginka, 2011).

    12.g3

    • 12.f4 Ng6 13.fxe5 Nxe5 14.Bg5 h6 15.Bxf6 breaks up Black's kingside and gives White a significant advantage (Gligoric-Keene, IT, Hastings, 1973).

    12...Bh3 13.Re1 Qd7 (N)

    • 13...Nfg8 14.f4 exf4 15.Bxf4 Qd7 16.Qc2 gives White a small advantage in space (Gelfand-Grischuk, World Rpd Ch, Astana, 2012).

    14.f3

    • White has a small advantage in space.

    14...Nfg8

    • 14...h6 15.Be3 Qc7 16.a4 Bd7 17.a5 Kg8 18.Qe2 gives White a small advantage in space.
    • If 14...Kg8 15.Bg5 Ne8 then:
      • 16.Qc2 h6 17.Be3 f5 18.exf5 Nxf5 19.Ng6 gives White a small advantage in space.
      • 16.Rb1!? b6 17.Qc2 h6 18.Bc1 Nf6 19.Qf2 gives White a small advantage in space.


    BLACK: Vladislav Tkachiev




    WHITE: Romain Edouard
    Position after 14...Nf6g8


    15.g4!

    • White entombs Black's Bishop on h3.
    • If 15.Qc2 Qc7 16.Rb1 Bd7 17.f4 b6 18.fxe5 dxe5 19.Qe2 continues to give White a small advantage in space.
    • If 15.Rb1 f5 then:
      • If 16.Rb5 b6 17.Bg5 Nf6 18.exf5 Nxf5 then:
        • If 19.Ng2 Rab8 20.Qc2 then:
          • 20...a6 21.Rb2 h6 22.Bd2 b5 23.Reb1 Rbc8 24.Qd1 gives White a slight advantage.
          • 20...h6 21.Bd2 g6 22.Qd1 h5 23.a4 Kg7 24.a5 gives White a slight advantage.
        • If 19.g4?! Nxh4 20.Bxh4 e4 then:
          • 21.Bxe4 Nxe4 22.Rxe4 Rae8 23.Qd3 Rxe4 24.Qxe4 Qf7 gives Black an extra pawn, but Black is fully compensated and then some with stronger pawns and superior piece placement that assures that Black will level the material balance and free his Bishop.
          • 21.Bxf6 gxf6 22.Bxe4 f5 23.gxf5 Rg8+ 24.Kf2 Bxf5 gives Black the advantage in space.
      • 16.Rb2 b6 17.exf5 Nxf5 18.Bxf5 Bxf5 19.g4 gives White a slight advantage in space.

    15...Ng6!?

    • Black might consider 15...Nf6 with at least the possibilty of freeing the entombed Bishop.
    • 15...Nf6 16.Bc2 then:
      • 16...a6 17.Qe2 Rg8 18.Nf5 Nxf5 19.exf5 e4 20.fxe4 Bxg4 is equal.
      • 16...Nxg4?! 17.fxg4 Bxg4 18.Ba4! Bxd1 19.Bxd7 gives White a minor piece for two pawns.

    16.Nxg6+!?

    • This simply allows black to open the f-file for his Rook against White backward pawn.
    • 16.Nf5 h5 17.gxh5 Bxf5 18.exf5 Nh4 19.f4 continues to give White a small advantage.

    16...fxg6!

    • The game is equal.

    17.Kh1 h5 18.gxh5

    • If 18.g5 Rf7 then:
      • 19.Be2 Ne7 20.Be3 Kg8 21.Rb1 b6 22.a4 Qc7 remains equal.
      • 19.Rb1 Ne7 20.Be3 Kg8 21.Be2 Qc7 22.Qb3 Rb8 remains equal.

    18...Qf7 19.Be2

    • 19.f4 gxh5 20.fxe5 dxe5 21.Re3 Bg4 22.Be2 Nh6 remains equal.

    19...gxh5 20.Rg1 Nf6!?

    • More direct is to retreat the Bishop, which cannot be defended at h3.
    • If 20...Bd7 21.Rb1! then:
      • 21...b6 22.Qe1 Nf6 23.Qh4 remains equal.
      • 21...Be8 22.Bg5 Rb8 23.Qe1 Nf6 24.Qh4 remains equal.

    21.Qe1!

    • The Queen has more freedom here.
    • Also good is 21.Rb1! then:
      • 21...Rg8 22.Qe1 Raf8 23.Bg5 Bc8 24.Qh4 Qe8 25.Rg2 gives White a slight advantage in space and more freedom.
      • 21...Rae8!? 22.Qe1 Bc8 23.Qh4 b6 24.Bg5 g6 25.a4 gives White a small advantage in space.

    21...Nh7!?

    • Black apparently intends 22...g5 in order to fix White backward pawn at f3
    • If 21...Rae8 22.Qh4 Bc8 23.Be3 then:
      • 23...Bd7 24.Raf1 g6 25.Bg5 Qg7 26.Rg2 Rf7 27.Rfg1 gives White a small advantage; White's Rooks are doubled against a weak pawn.
      • If 23...b6 24.Bg5 then:
        • 24...g6 25.a4! Kh7 26.Rgb1 Kg7 27.a5 bxa5 28.Rxa5 gives White a fair advantage in space.
        • 24...Kh7!? 25.a4! g6 26.a5 bxa5 27.Rxa5 Re7 28.Rb5 gives White a comfortable game.

    22.Qh4!

    • This move is better than 22.Bg3 because it at once gains a tempo on the Bishop and put pressure on the h-pawn. White has a comfortable game.
    • 22.Qg3!? Bd7 23.Rb1 b6 24.Qh4 Rg8 25.Bd2 gives White a slight advantage in space.

    22...Bd7 23.Be3!?

    • Given the potential of White's position, this move is timid.
    • More aggressive is 23.Bg5! Nxg5 24.Rxg5 Be8 25.Rag1 Qf6 26.Qh3 when White continues to enjoy a comfortable game.

    23...g6!?

    • Black fails to capitalize on White's passive play.
    • If 23...Rg8 24.Raf1 g5 25.Bxg5 Nxg5 26.Rxg5 Rxg5 27.Qxg5 continues to give White a small advantage in space.


    BLACK: Vladislav Tkachiev




    WHITE: Romain Edouard
    Position after 23...g7g6


    24.Raf1!

    • White has a Rook trained on a weak g-pawn and a fair advantage in space.

    24...Qf6 25.Qg3!?

    • White piles on the weakling at g6, but amy have had a better way of going about the problem.
    • If 25.Bg5! Nxg5 26.Rxg5 Rf7 27.f4 exf4 28.Bxh5 then:
      • 28...Rh7 29.Rxf4 Qe7 30.Bxg6 Rxh4 31.Rxh4+ Kg7 32.Rh7+ wins the Queen.
      • If 28...gxh5 then:
        • If 29.Rfg1! then:
          • 29...Qxg5 30.Rxg5 Rg7 31.Rxh5+ Kg8 32.Rh8+ puts Black in a mating net.
          • If 29...Bg4 then White wins after 30.R1xg4 Qxg5 31.Rxg5 Rg7 32.Rxh5+ when he soon delivers mate.
        • 29.Qxh5+?? Rh7! 30.Qg6 Rf8 31.Qxf6+ Rxf6 32.Rfg1 Rf8 leaves Black a piece up and winning.

    25...Rg8 26.h4 Qe7?!

    • Black removes a guard from his weak g-pawn.
    • 26...Qg7 27.f4 Nf6 28.Bf3 b6 29.fxe5 dxe5 30.Bg5 gives White a passed pawn at d5.

    27.f4!

    • White fixes the backward pawn at g6.

    27...Rae8 28.fxe5 dxe5

    • 28...Qxe5 (simultaneously attacking the weaklings at c3 and e4) 29.Qxe5+ Rxe5 30.Bf4 Ree8 31.Bf3 Nf6 32.Re1 gives White a substantial advantage with the pawn at d6 under attack.


    BLACK: Vladislav Tkachiev




    WHITE: Romain Edouard
    Position after 28...de5:p


    29.Kh2!

    • The King is safe here. Without a dark square Bishop and with a Black pawn occupying e5, Black cannot access any avenue of attack aimed at h2.

    29...b6 30.Bh6 Ba4 31.Rf2 Bc2 32.Rgf1 Bxe4?

    • Black takes an extra pawn and creates a passer, but exposes his own e-pawn to attack on a file that is open to White and a diagonal that White already commands.
    • If 32...Qd7 33.Bg5 Rg7 34.Bxh5 then:
      • 34...Bxe4 35.Bg4 Bf5 36.Bxf5 gxf5 37.Rxf5 e4 38.Qg4 gives White a king sized advantage in space.
      • If 34...gxh5?? then White wins after 35.Rxc2! Nxg5 36.hxg5 Qg4 37.Qxg4 hxg4 38.Rf5.


    BLACK: Vladislav Tkachiev




    WHITE: Romain Edouard
    Position after 32...Bc2e4:p


    33.Rf7! Qd8 34.Bxh5

    • White wins after 34.Rxh7+ Kxh7 35.Rf7+ Kh8 36.Bg5 Rg7 37.Bf6.

    34...Re7

    • If 34...Bd3 then White wins after 35.R1f3 Be4 36.Re3 Re7 37.Rxe7 Qxe7 38.Bd1.

    35.Bg4?!

    • White wins after 35.Bd1! Qc7 36.Rxe7 Qxe7 37.Re1 Nf6 38.Bg5.

    35...Bf5!

    • Black's position is now marginally defensible.
    • If 35...Rxf7? then White wins after 36.Rxf7 Qb8 37.Be6 a5 38.h5 b5 39.hxg6.

    36.Rxe7 Qxe7 37.Bh3 Bxh3

    • 37...a6 38.a4 a5 39.Rf2 Bxh3 40.Qxh3 Re8 41.Qg4 continues to give White domination of the kingside.

    38.Kxh3 g5?

    • Black advances a pawn and opens f5 for White's Rook.
    • If 38...Qd7+ 39.Kg2 Re8 40.Rf2 Qe7 41.Kg1 Rg8 42.a3 gives White a coordinated kingside attack and a passed pawn; Black also has a passer.


    BLACK: Vladislav Tkachiev




    WHITE: Romain Edouard
    Position after 38...g6g5


    39.hxg5?

    • White misses an opportunity to win right away and gives Black good drawing chances.
    • 39.Rf5! then White wins after 39...gxh4 40.Qxe5+ Qxe5 41.Rxe5 Nf6 42.Re6.

    39...Nxg5+!

    • White still has a small advantage in space.

    40.Bxg5 Rxg5

    • 40...Qxg5 41.Qh4+ Qxh4+ 42.Kxh4 Rg7 43.Rf5 gives White a small advantage; Black's e-pawn must fall.

    41.Qh4+

    • White has a small advantage; the Rook is pinned.

    41...Kg8 42.Rf5!

    • White maintains a small advantage in space.
    • If 42.Rg1!? Qd7+! then:
      • 43.Kh2 Rxg1 44.Kxg1 Qf5 45.Qe7 is a likely draw.
      • If 43.Rg4 Rg6 44.Qh5 Rg7 45.Kg3 then:
        • If 45...Qxg4+ 46.Qxg4 Kf7 47.Qxg7+ Kxg7 48.Kf3 then:
          • 48...Kf7! 49.Ke4 Kf6 50.a3 a6 51.a4 a5 transposes to Black's 50th move, below.
          • If 48...Kf6 49.Ke4 a6 then:
            • 50.a3 b5 51.cxb5 axb5 52.Kd3 Ke7 53.c4 is equal
            • If 50.a4 a5 51.Ke3 Kg5 52.Ke4 Kf6is equal and likely drawn.
        • If 45...a6 46.Kf3 Qf7+ 47.Qxf7+ Kxf7 then:
          • 48.Rh4 b5 49.cxb5 axb5 50.a4 bxa4 51.Rxa4 Kf6 52.Rc4 is equal and likely drawn.
          • 48.Rxg7+ Kxg7 49.Ke4 Kf6 50.a3 b5 is equal and likely drawn.

    42...Rg7

    • Exchanging Queens is Black's only playable option.
    • White has a comfortable game.

    43.Qxe7 Rxe7 44.Kg3 e4

    • 44...Rg7+ 45.Kf3 Rg1 46.Ke2 Rh1 47.Rxe5 continues to give White an extra pawn, that being a passer, but also weak pawns at a2, c3 and c4.

    45.Kf2!

    • White has a comfortable game with a better passed pawn.

    45...Rh7?

    • Black's e-pawn must fall.
    • If 45...e3+ 46.Ke2 then:
      • 46...Re4 47.Rf3 Rh4 48.a4 Rg4 49.Kd3 e2 50.Re3 continues to give White a comfortable game.
      • 46...Kg7?! 47.Rf3 Kg6 48.Rxe3 Rh7 49.Re6+ Kf5 50.Kd3 gives White an extra pawn.


    BLACK: Vladislav Tkachiev




    WHITE: Romain Edouard
    Position after 45...Re7h7


    46.Ke3!

    • White demonstrates the power of blockading the passed pawns. Black will soon run out of reserve pawn tempi, making him vulnerable to Zugzwang.
    46...Rh3+

    • 46...Re7 47.Rf4 Kg7 48.Rxe4 Rd7 49.Kf4 Rd8 50.Re7+ wins the a-pawn.
    • If 46...Kg7 then after 47.Kxe4 Kg6 48.Ke5 Rh1 49.Rf8 Re1+ 50.Kd6 Black pawns fall ripe summer fruit.

    47.Kxe4

    • The rest of the game almost plays itself.

    47...Rxc3 48.d6 Rxc4+ 49.Kd5 Rd4+ 50.Kc6 c4 51.d7 1-0

    • If 51...Kg7 then Black is kaput after 52.Rd5 Rd3 53.d8Q.
    • M. Tkachiev resigns.

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    Response to Jack Rabbit (Reply #9)

    Sat Sep 22, 2012, 04:50 PM

    28. Fressinet - Bauer, Round 8

    Christian Bauer was probably playing the best chess of his life when his infant child died suddenly just before the final round, when M. Bauer, M. Vachier Lagrave, M. Edouard and M. Bacrot were tied for first place. The fianl round and any necessary playoff was canceled and the four men were declared French co-champions for 2012.

    M. Bauer's most important win came in the eighth round against the ratings favorite, Laurent Fressinet.



    Christian Bauer
    Photo by Stefan64 (http://commons.wikimedia.org/wiki/User:Stefan64) in Wikipedia Commons (http://en.wikipedia.org/wiki/File:Christian_Bauer.jpg)
    (Creative Commons License, Attribution/Share Alike)


    Laurent Fressinet - Christian Bauer
    French Championships, General Group, Round 8
    Pau, 21 August 2012

    East India Game: Queen's Indian Defense (Catalan Opening/Bronstein Variation)


    1.d4 Nf6 2.Nf3 e6 3.c4 b6 4.g3 Ba6 5.Qb3

    • This sortie is relatively unusual.
    • For more common lines of the Queen's Indian, see Grischuk-Topalov, IT, Linares, 2010.

    5...Nc6 6.Nbd2 Na5

    • If 6...d5 then:
      • If 7.Bg2 then:
        • If 7...Bd6 8.cxd5 exd5 9.Ne5 then:
          • If 9...Bb7 10.Nxc6 Bxc6 11.Nc4 then:
            • 11...0-0 12.Nxd6 Qxd6 13.Bf4 Qd7 14.Rc1 Rfe8 15.Be5 is equal (Riazantsev-S. Zhigalko, Euro Ch, Dresden, 2007).
            • If 7...Qd7 8.0-0 Bd6 9.Qc3 then:
              • 9...0-0 10.Ne5 Bxe5 11.dxe5 Ng4 12.b4 dxc4 13.Nf3 gives White a small advantage with a greater ability to generate threats (Ponomariov-Anand, Rpd IT, Cap d'Agde, 2003).
              • 9...Bb7 10.a3 0-0 11.b4 a6 12.Bb2 Rfd8 13.Rac1 gives White a small advantage in space (Brynell-E. Agrest, Swedish Ch, Goteborg, 2005).
          • 9...Na5 10.Qa4+ c6 11.0-0 0-0 12.Re1 c5 is equal (Banusz-So, World Jr Ch, Yerevan, 2007).
        • 11...Be7?! 12.Bf4 0-0 13.Ne3 Qd7 14.0-0 Ba4 15.Qd3 gives White fewer pawn weakness, better piece coordination and a slight edge in space; Black can drive away White's Queen with ...Bb5 (Beliavsky-Stefansson, Euro Ch, Istanbul, 2003).
      • If 7.Qa4 Bb7 8.Bg2 then:
        • If 8...Qd7 9.0-0 Bd6 then:
          • 10.cxd5 10...exd5 11.Nb1 Ne4 12.Be3 Ne5 13.Qxd7+ Nxd7 is equal (Gelfand-Grischuk, TM, Moscow, 2002).
          • 10.Qc2 Nb4 11.Qd1 c5 12.cxd5 exd5 13.b3 0-0 gives Black the advantage in space, buty he has no way to go forward (Piket-Leko, Amber Rapid, 2002).
        • If 8...Bd6 then:
          • If 9.cxd5 exd5 10.Nc4 then:
            • If 10...Bb4+ 11.Bd2 then:
              • If 11...Bxd2+ 12.Ncxd2 0-0 13.0-0 Qd6 then:
                • 14.Rac1 a5 15.a3 Nd8 16.e3 Ne6 17.Nb1 c5 is equal (Riazantsev-Brodsky, Russian ChT, Sochi, 2004).
                • 14.e3 a5 15.Rfc1 Nb4 16.Ne1 c5 17.dxc5 gives White stronger pawns and more freedom; Black has more space (Gyimesi-Kovacevic, Bosnian ChT, 2007).
              • 11...dxc4 12.Bxb4 Qd5 13.0-0 0-0-0 14.Ne5 Ne4 15.Nxc6 gives White a comfortable game (Goldin-Ashley. US Ch, Seattle, 2003).
            • If 10...dxc4!? 11.Ne5! then:
              • If 11...Bxe5 then:
                • 12.Bxc6+ Bxc6 13.Qxc6+ Kf8 14.dxe5 Qd5 15.Qxd5 Nxd5 16.Bd2 gives White a small advantage in space (Kramnik-Leko, Amber Blind, Monte Carlo, 2002).
                • 12.dxe5?! Nd5! 13.Bf4 0-0 14.0-0-0 Ncb4 15.Bxd5 Nxd5 gives Black a better center that holds in front of the Queen.
              • 11...Bb4+ 12.Kf1 0-0 13.Nxc6 Qe8 14.Qxb4 Bxc6 15.Qxc4 gives White a fair advantage in space (Ivanchuk-Almasi, Amber Rapid, Monte Carlo, 2003).
          • If 9.0-0 0-0 then:
            • If 10.cxd5 exd5 11.Nb1 Ne4 then:
              • 12.Nc3 Nxc3 13.bxc3 Na5 14.Nd2 Qe8 15.Qd1 Qc6 is equal (Morovic Fernández-San Segundo Carillo, Ol, Palma de Mallorca, 2004).
              • If 12.Bf4 Re8 13.Rc1 Bxf4 14.gxf4 Ne7 15.Nc3 Nf5 gives White a small advantage in space (Gelfand-Leko, Amber Blind, Monte Carlo, 2002).
            • If 10.a3 a5 then:
              • 11.Qc2!? a4! 12.Rd1 h6 13.e4 dxe4 14.Nxe4 Nxe4 15.Qxe4 Na5 gives Black a comfortable game (Kuraszkiewicz-Anastasian, Euro Ch, Warsaw, 2005).
              • If 11.Re1 Qd7 12.b3 Rad8 13.Bb2 Ne4 14.Rac1 f5 is equal.

    7.Qa4

    • If 7.Qc3 then:
      • If 7...c5 8.dxc5 bxc5 9.e4 then:
        • If 9...Bb7 10.e5 Ne4 11.Nxe4 Bxe4 12.Bg2 then:
          • If 12...Be7 13.0-0 then:
            • If 13...0-0 14.Bd2 Nc6 15.Qe3 then:
              • 15...Bxf3 16.Bxf3 Nd4 17.Bc3 Rb8 18.Bxd4 cxd4 19.Qxd4 gives White a comfortable game (Bareev-Gelfand, Russian ChT, Sochi, 2004).
              • 15...Bg6 16.Bc3 Qb6 17.Rfd1 Rad8 18.Rd2 a5 19.Rad1 gives White fewer pawn weaknesses (Dautov-Ibraev, Ol, Palma de Mallorca, 2004).
            • If 13...Rb8 14.Re1 Bg6 then:
              • 15.Nd2 f6 16.Nb3 Nxb3 17.axb3 fxe5 18.Qxe5 (Huzman-Beliavsky, Euro Ch, Istanbul, 2003).
              • 15.Bg5 Nc6 16.Bxe7 Qxe7 17.h3 0-0 18.Rad1 Rfd8 is equal (Sargissian-A. Ivanov, Aeroflot Op, Moscow, 2004).
          • If 12...Nc6 13.0-0 Rb8 14.Re1 Bxf3 then:
            • If 15.Qxf3 Nd4 16.Qd3 Be7 then:
              • 17.b3 Qc7 18.Bb2 d6 19.Bxd4 cxd4 20.Qxd4 dxe5 is equal (Galliamova-Videnova, OlW, Khanty-Mansiysk, 2010).
              • 17.Rb1 a5 18.Bd2 Qb6 19.Be4 gives White a small advantage in space (Gustafsson-Eljanov, Bundesliga 0708, Hamburg, 2008).
            • If 15.Bxf3 Nd4 then:
              • 16.Bg2 Be7 17.Rb1 Qb6 18.Be3 0-0 19.Qd3 gives White a small advantage in space (Riazantsev-S. Zhigalko, Euro Ch, Plovdiv, 2008).
              • If 16.Bd1 Be7 17.Be3 Qc7 then:
                • If 18.Rb1!? Qxe5! then:
                  • 19.Bxd4?! cxd4! 20.Qd2 Qc5 21.Be2 0-0 22.Red1 e5 gives Black mobile pawns marching up the center (Shirov-Gelfand, IT, Banza, 2009).
                  • 19.Bf4 Qf5 20.Bg4 Qxg4 21.Bxb8 0-0 gives Black a small advantage in space.
                • 18.Qd2 0-0 19.a3 f6 20.exf6 Bxf6 21.b4 a5 remains equal.
        • If 9...d6 10.a3 Bb7 11.b4 then:
          • If 11...Nc6 12.Bg2 Be7 then:
            • 13.b5 Qa5 14.Qd3 Ne5 15.Nxe5 dxe5 16.0-0 gives White a slight advantage in space (Kramnik-Almasi, Amber Rapid, Monte Carlo, 2002).
            • 13.0-0 Nd7 14.Bb2 Bf6 15.Qb3 Bxb2 16.Qxb2 is equal (Girya-Arabidze, Euro Ch, Giazantep, 2012).
          • 11...cxb4 12.axb4 Nc6 13.b5 Nb8 14.Bg2 Nbd7 15.0-0 gives White a fair advantage; Black's Bishop at b7 has no place to go but c8.
      • If 7...d5 8.c5 Be7 then:
        • 9.Bg2 0-0 10.b4 Nc6 11.cxb6 Bb5 12.b7 Rb8 is equal (Wells-P. Carlsson, Op, Gibraltar, 2006).
        • 9.e3 Bxf1 10.Kxf1 Qd7 11.a4 Nc6 12.Ne5 Nxe5 gives Black a slight advantage in space (Van Wely-Hracek, Bundesliga 0405, Holfeim, 2005).

    7...Bb7 8.Bg2 c5 9.dxc5 Bc6 (N)

    • If 9...Bxc5 10.b4 Bc6 11.Qa3 Be7 12.Qc3 then:
      • 12...Nb7 13.Bb2 Nd6 14.0-0 Rc8 15.Ne5 Bxg2 16.Kxg2 gives White a small advantage in space (Sargissian-A. Zhigalko, Euro Club Cup, "Rogaska Slatina, 2011).
      • 12...Ne4! 13.Nxe4 Bxe4 14.0-0 Nc6 15.Bb2 Bf6 16.Qd2 is equal.

    10.Qc2

    • White has a small advantage in space.

    10...bxc5 11.0-0 Be7 12.b3 0-0 13.Bb2 d6!?

    • The weakest points in Black's position are the Knight at a5 and the pawn at a7.
    • 13...Qc7 14.Bc3 Rad8 15.Rad1 d5 16.Ne5 continues to give White a small advantage in space

    14.a3!

    • White has a comfortable game. The text move prepares and advance of White's queenside pawns.

    14...Rc8 15.Rfd1?!

    • White loses a little bit of his advantage. The position White pieces indicates 15.e4.
    • If 15.e4! Qd7 16.b4 Ba4 17.Qc3 Nb7 18.b5 continues to give White a comfortable game.

    15...h6!?

    • Black makes a waiting move. Although Black is in no immediate danger and can't create any threats at the moment, there's plenty to do. The pawn at a7 could become a target without too much effort, for example.
    • 15...Qc7 (covering the a-pawn)16.b4 (opening the queenside) 16...Bxf3 17.Bxf3 Nc6 18.Bxc6 Qxc6 19.b5 Qb7 20.Nb3 gives White a small advantage.
    • If 16...cxb4?! 17.axb4 Bxf3 18.Bxf3 Nxc4 then:
      • 19.Qxc4 Qxc4 20.Nxc4 Rxc4 21.Rxa7 gives White a passed pawn and a Rook on the seventh rank.
      • 19.Nxc4!? d5! 20.Rdc1 dxc4 21.Bd4 Bxb4 22.Rxa7 Qd6

    16.e4

    • White continues to have a comfortable game with a better center and dynamic opportunities on the queenside.

    16...a6 17.b4 Nb7 18.Rab1!?

    • White is ready to advance his pawns on the queenside. It would work better to bring the other Rook to b1.
    • 18.Rdb1! e5 19.Bc3 Bd7 20.b5 Qb6 21.a4 continues to give White a comfortable game.

    18...Qe8!?

    • Black is more afraid of leaving his Queen in opposition to White's Rook than warrented.
    • If 18...e5 19.Bh3 Bd7 then:
      • If 20.Bf5 cxb4 21.axb4 then:
        • 21...a5 22.b5 Qb6 23.Bxd7 Nxd7 24.Nf1 Nbc5 25.Ne3 gives White a small advantage in space.
        • 21...Bxf5 22.exf5 Qc7 23.Re1 Rfe8 24.Rbd1 Nd7 25.Re3 gives White a small advantage in space.
      • If 20.Bxd7!? Qxd7 21.Bc3 Nd8 then:
        • 22.Nf1 Qc6 23.N3d2 Ne6 24.Ne3 Nd4 25.Qd3 gives White a small advantage in space.
        • 22.Qd3 Ne6 23.Nh4 g6 24.Ng2 h5 25.h4 Nd4 is equal.

    19.Qc3!?

    • White should keep pressure in the center.
    • If 19.Qd3 Ba4 20.Rdc1 Qd7 then:
      • If 21.Bc3 Qc7 22.b5 axb5 23.cxb5 then:
        • 23...c4 24.Qe2 d5 25.exd5 exd5 26.b6 Qd8 27.Ne5 gives White an advanced passed pawn and a slight advantage in space against Black's two connecte passers.
        • 23...Qd7?! 24.b6 Rfd8 25.Nc4 d5 26.exd5 exd5 27.Ne3 gives White a better center with the command of the e5 square and a comfortable advantage in space
      • 21.e5 dxe5 22.Qe2 Rfd8 23.Bc3 e4 24.Ne5 gives White a comfortable game with stronger pawns and the initiative.


    BLACK: Christian Bauer




    WHITE: Laurent Fressinet
    Position after 19.Qc2c3


    19...e5!

    • Black locks the center.

    20.Ne1!?

    • White's idea of moving the Knight so the Bishop can cover e4 is the right one, but e1 should be left available for a Rook.
    • If 20.Nh4 Ba4 then:
      • 21.Rdc1 g6 22.Qd3 Nd8 23.Bc3 Ne6 24.Bh3 Bd7 gives White a small advantage in space and stronger pawns.
      • If 21.Re1 then:
        • 21...Nd8 22.Nf5 Ne6 23.Nf1 g6 24.Nxe7+ Qxe7 25.Ne3 is equal; White would have an easier time targeting Black's backward d-pawn if he could put a Rook on d1.
        • 21...g6!? 22.Bf1 cxb4 23.axb4 a5 24.bxa5 Qd7 25.Ba3 gives White a fair advantage in space.

    20...cxb4!

    • Black has leveled the game.

    21.axb4 a5 22.bxa5 Ra8

    • If 22...Nc5!? 23.Qe3 Ra8 then:
      • 24.Ba3! Ba4 25.Rdc1 Rxa5 26.Bxc5 Rxc5 27.Nd3 gives White a slight advantage in space.
      • 24.Nd3!? Nxd3! 25.Qxd3 Rxa5 26.Bc3 Ra2 is equal.

    23.Ra1 Ba4 24.Rdb1 Bd8 25.Ba3!?

    • White would gain at least a tempo by making Black take the a-pawn with the Rook on a6 instead of the Bishop on a5.
    • 25.a6 Rxa6 26.Nd3 Ba5 27.Qc1 Qd7 28.c5 Bxd2 remains equal.


    BLACK: Christian Bauer




    WHITE: Laurent Fressinet
    Position after 25.Bb2a3


    25...Bxa5!

    • Thanks to his two active Bishops, Black has a small advantage.

    26.Qe3 Nc5!?

    • Black, who has a small advantage in space, gives White an opportunity to exchange and relieve the pressure.
    • If 26...Qd7 27.Nef3 Bc6 28.Nb3 Ng4 29.Qe2 Bc3 continues to give Black a small advantage in space.

    27.Bxc5!

    • The game is equal.

    27...dxc5 28.Nb3 Bxb3

    • If 28...Bxe1 29.Rxe1 Bxb3 30.Qxb3 Qb8 31.Qxb8 Rfxb8 gives Black a slight advantage on the queenside with two Rooks bearing down on open files.

    29.Qxb3 Bxe1 30.Rxe1 Qe7 31.Bf3

    • White makes sure that his pawns are protected and overprotected.
    • 31.Qb5!? Rxa1 32.Rxa1 Qd6 33.Qa4 Qd3 34.Qb5 Qd4 gives Black a small initiative. White will play 35.Re1.

    31...Rab8

    • The game is equal.

    32.Qe3!?

    • This is a very slight inaccuracy to leave the c-pawn unguarded in this position.
    • 32.Qc2 Rfd8 33.Reb1 Rxb1+ 34.Rxb1 Rd4 35.Rb8+ Kh7 gives Black a slight advantage. Depending on where White places his Queen, Black can attack either the c-pawn or e-pawn, whichever is more vulnerable.

    32...Rb4!?

    • Black fails to exploit the error.
    • 32...Rfd8! 33.Be2 Rb2 34.Ra5 Rd4 35.Ra8+ Kh7 gives Black a small advantage in space.

    33.Rec1!?

    • White should keep his options open with the Rooks.
    • Better is 33.Be2! Rd8 34.f3 Rb2 35.Reb1 Rc2 36.Rc1 Rcd2 with equality.


    BLACK: Christian Bauer




    WHITE: Laurent Fressinet
    Position after 33.Re1c1


    33...Rd8!

    • Black has a slight advantage in space.

    34.h4 Qc7 35.Ra6 Rb6!?

    • Black has a slight advantage in space and shouldn't be too anxious to exchange Rooks. In any case, the exchange isn't forced.
    • 35...Rd4 36.Rxf6 gxf6 37.Qxh6 Qc6 continues to give Black a slight advantage.

    36.Ra5!

    • The game is equal.
    • 36.Rca1 Rd4 37.Kg2 Rxc4 38.Ra8+ Kh7 39.g4 Qc6 is equal.
    • 36.Rxb6 Qxb6 37.h5 Qb2 38.Kg2 Rd4 is equal.

    36...Rb3 37.Qxb3 Qxa5 38.Kg2 g6 39.Rb1

    • 39.Qb5 Qa3 40.Rb1 Kg7 41.Rb3 Qa2 42.Rb2 Qa1 gives Black a slight advantage with the more active Queen; any King-and-pawn ending would be drawn.

    39...Kg7 40.Qb5 Qc7!?

    • More aggressive is to deploy the Queen in White's territory.
    • If 40...Qc3 41.Rb3 Qd4 42.Re3 g5 43.hxg5 hxg5 gives Black a small advantage in space.


    BLACK: Christian Bauer




    WHITE: Laurent Fressinet
    Position after 40...Qa5c7


    41.Qa6!

    • The game is equal.

    41...Rd6

    • 41...Rd7 42.Rb5 g5 43.hxg5 hxg5 44.g4 Rd4 gives Black a slight edge. White's best move here is 45.Rb7.

    42.Qa8

    • If 42.Rb7 Rxa6 43.Rxc7 then:
      • 43...Ra5 44.Re7 Ra4 45.Rxe5 Rxc4 46.Re7 Kf8 47.Rc7 remains equal.
      • 43...Rd6!? 44.Rxc5 Rd4 45.Be2 Rxe4 46.Kf1 gives White a small advantage in space.

    42...Rd2 43.Rd1?!

    • White feels the discomfort of the Black Rook on the seventh rank.
    • If 43.Qa3 Qd6 44.Rb2 Rd3 45.Rb3 Rxb3 46.Qxb3 Qd4 gives Black a small advantage owing to the better position of his Queen.

    43...Rxd1!

    • With more space, the exchange of Rooks mostly benefits White.

    44.Bxd1 Qd6 45.Be2!?

    • While Black has a clear advantage, the game has a stable quality to it. For about the next dozen to two dozen moves, the situtaltion changes little. White's e-pawn doesn't fall for another four moves, but it's already deadwood. The exchange of minor pieces on move 57 is of a modest benefit to Black, but with Queens on the board, he still has a hard time making progress with his extra pawn.
    • 45.Qa1 Nxe4 46.Bf3 Nf6 47.Ba8 Qd8 48.Bb7 Qd4 gives Black a clear advantage, but pushing the pawn will not be a slam dunk.


    BLACK: Christian Bauer




    WHITE: Laurent Fressinet
    Position after 45.Bd1e2


    45...Qd2!

    • The Bishop must abandon the pawn.

    46.Bf3 Qd4

    • 46...Qc2?! 47.Qa1! Qxc4 48.Qxe5 Qd4 is equal.

    47.Qa2

    • 47.Qb8 Nxe4 48.Bxe4 Qxe4+ 49.Kg1 Qe1+ 50.Kg2 Qc3 gives Black an extra pawn, an active Queen and the initiative.

    47...Ne8 48.Be2

    • White must loose a pawn one way or another.
    • If 48.h5 then Black wins a pawn by 48...g5 49.Be2 Nf6 50.f3 Nxh5.

    48...Qxe4+

    • White's e-pawn falls.

    49.Bf3 Qd4 50.Qe2

    • If 50.Qc2 Nf6 51.Bb7 then:
      • 51...Qd7 52.Bf3 Qe6 53.Qc3 e4 54.Be2 h5 gives Black and extra pawn and more space.
      • 51...Kg8 52.Qe2 Kh7 53.Qf3 Kg7 54.Qe2 Qd6 gives Black an extra pawn and command of the d-file.

    50...Nf6 51.Bc6 h5

    • 51...e4 52.Kf1 h5 53.Kg2 Kh7 54.Ba8 Kh6 continues to give Black an extra pawna and the more active Queen.

    52.Kg1

    • 52.f3 Ng8 53.Ba8 Nf6 54.Bc6 Kh7 55.Qa2 e4 forces the exahange at e4.

    52...Ng8

    • 52...e4 53.Kg2 Kh6 54.Kf1 Qa1+ 55.Kg2 Qe5 gives Black an extra pawn, but for the moment Black must train both his pieces on the pawn at e5.

    53.Kg2

    • If 53.Be4 then:
      • 53...Nh6 54.Bf3 Kf8 55.Kf1 Ng8 56.Kg1 Nf6 continues to gives Black an extra pawn and more activity.
      • 53...Nf6 54.Bc6 Kf8 55.Qf3 e4 56.Qe2 Kg8 continues to gives Black an extra pawn and more activity; with every piece on the board trined on the pawn at e4, the situation is critical..

    53...Ne7 54.Bb7 Nf5 55.Bd5 Nd6

    • If 55...Nh6!? then:
      • 56.Bb7 Ng4 57.Bc6 Kg8 58.Bf3 Nf6 59.Bc6 e4 continues to gives Black an extra pawn and moreactivity, but the e-pawn is under seige.
      • 56.Bf3 Kf8 57.Qe4 Ng4 58.Qe2 Nf6 59.Bc6 e4 continues to gives Black an extra pawn and moreactivity, but the e-pawn is under seige.

    56.Qa2 Ne4!

    • If permitted to remain on the board, the Knight would become a menace in White's territory.


    BLACK: Christian Bauer




    WHITE: Laurent Fressinet
    Position after 56...Nd6e4


    57.Bxe4

    • Exchanging pieces is White's best option.
    • If 57.Ba8? Nc3! 58.Qb3 e4 then:
      • 59.Qb8 Nd1 60.Qf4 e3 61.Qxd4+ cxd4 62.fxe3 d3! makes it hard for White to stop the d-pawn.
      • 59.Qc2 Qxc4 60.Qb2 Qd3 61.Kh2 Kh7 62.Qa3 Qd4 gives Black two extra pawns.

    57...Qxe4+ 58.Kg1

    • If 58.f3 Qe3 59.Qc2 Kf6 then:
      • 60.Qd1 Qd4 61.Qc2 e4 62.fxe4 Ke5 63.Kh2 Qxe4 leaves Black a pawn to the good; Black easily wins any King-and-pawn ending.
      • If 60.Qb2 Qd4 61.Qe2 Kf5 then:
        • 62.Kh3 e4 63.fxe4+ Qxe4 64.Qf1+ Ke5 65.Kh2 Qc2+ leaves Black a pawn to the good.
        • 62.Qf1 Qd2+ 63.Kh1 Qc2 64.Kg1 Ke6 65.Kh1 Qd2 leaves Black a pawn to the good with the active Queen.

    58...Qe1+ 59.Kg2 Qe4+

    • 59...Qc3 60.Qe2 Qd4 61.f3 Qc3 62.Kf2 Kf6 63.Kg2 Qd4 clearly gives Black the better game with an extra pawn, but still one difficult to win.

    60.Kg1 Qd3

    • If 60...Qd4 61.Qa4 e4 then:
      • 62.Kg2 Qc3 63.Kh2 Qd2 64.Kg1 e3 65.fxe3 Qxe3+ gives White an extra pawn, and active Queen and more freedom.
      • If 62.Qb5? e3! 63.fxe3 Qxe3+ then:
        • If 64.Kh2 Qf2+ 65.Kh1 g5 then:
          • 66.hxg5 h4 67.gxh4 Qxh4+ 68.Kg1 Qxg5+ 69.Kh2 Qf4+ leaves the White Queen tied to the defense of White's last pawn whilte the Black Queen is able to give check at will.
          • 66.Qb3 gxh4 67.gxh4 Qxh4+ 68.Kg2 Qg4+ gives Black two passed pawn that should be enough to win.
        • If 64.Kg2 Kh7 then:
          • 65.Qa6 Qe2+ 66.Kg1 Qf3 67.Qd6 Qe3+ 68.Kf1 Qc1+ wins the c-pawn.
          • 65.Qa4 Qe2+ 66.Kh1 Qf1+ 67.Kh2 Qf2+ 68.Kh3 Qg1 gives Black an extra pawn and a strong initiative (the threat of mate on h1).

    61.Qa4 e4 62.Qb5 Qd1+ 63.Kh2

    • Under no circumstances can White allow the Black Queen to capture on f2.

    63...Qd4 64.Kg2

    BLACK: Christian Bauer




    WHITE: Laurent Fressinet
    Position after 64.Kh2g2


    64...e3

    • Black strips away the King's palace guards.
    • Also good is 64...Qe5 65.Qc6 e3 66.fxe3 Qxe3 then:
      • 67.Qd5 67...Kf8 68.Qa8+ Qe8 69.Qd5 Qe2+ 70.Kg1 Qe7 continues to give Black an extra pawn.
      • 67.Qa4 Qe2+ 68.Kg1 Qf3 69.Qa1+ Kh7 70.Qe5 Qd1+ continues to give Black an extra pawn.

    65.fxe3 Qxe3

    • Black now has a pawn majority on the kingside.

    66.Qb2+ Kg8

    • Black must not play Qd4?!, when the exchange of Queens allows White to capture the Black's queenside pawn and escort the pawn, resulting in a draw.

    67.Kh2 Qd3

    • Although Black has an extra pawn, the position is stable and could easily result in a draw.
    • If 67...Kh7 68.Qa2 Qe4 then:
      • If 69.Qb3 Kg7 70.Qb2+ then:
        • 70...Kf8 71.Qb3 Qe5 72.Kg2 Qe2+ 73.Kh1 Kg7 makes no progress.
        • 70...Qd4 71.Qe2 Qf6 72.Kg2 Qc6+ 73.Kf2 Qa6 still gives Black an extra pawn and he still can't maneuver.
      • If 69.Kg1 Qf3 70.Kh2 then:
        • 70...Qf6 71.Kg2 Kg7 72.Qb3 Qd6 73.Qe3 Kg8 leaves Black better, but White's Queen continues to be a splendid defensive piece.
        • 70...Qd3 71.Kg2 Qc3 72.Qe2 Kg7 73.Qe4 Qb2+ leaves Black clearly better, but still can't advance his pawns.

    68.Qb8+ Kh7 69.Qf4 Qe2+ 70.Kg1 Kg7

    • Let's stop and do an expiriment. The position below is the present position with Black's c-pawn removed.


    BLACK




    WHITE
    White to move


    • The position is drawn.
    • If 71.Qd4+ f6 then:
      • If 72.Qa7+ Kf8 73.c5 Qe3+ then:
        • 74.Kg2 Qe2+ 75.Kh3 Qf1+ 76.Kh2 Qf2+ White cannot escape perpetual check.
        • If, on the other hand, if we remove White's pawn then Black wins easily regardless of who is to move.
        • 74.Kh2 Qf2+ 75.Kh1 Qf1+ 76.Kh2 Qf2+ 77.Kh3 Qf1+ etc. draws.
      • If 72.Qd7+ Kf8 73.Qd8+ then:
        • If 73...Kf7 74.Qd5+ Qe6 then:
          • 75.Kf2 Ke7 76.Qb7+ Kf8 77.Qc7 Ke8 78.c5 Qd7 79.Qf4 Qc6 is equal and likely drawn.
          • If 75.Qxe6+ Kxe6 76.Kf2 Kd6 then:
            • 77.Ke2 Kc5 78.Kd3 g5 79.Ke4 gxh4 80.gxh4 Kxc4 81.Kf4 Kd4 82.Kf5 Kd5 83.Kxf6 Kd6 is a well-known book draw.
            • If 77.Kf3?? then Black wins after 77...Kc5 78.Ke3 Kxc4 79.Ke4 Kc5 80.Ke3 Kd5.
        • If 73...Kg7 74.Qd7+ Kh6 75.Qd4 Qe1+ 76.Kg2 Qe2+ then:
          • 77.Kh3 Qf1+ 78.Kh2 Qe2+ etc. draws.
          • If 77.Qf2 Qxc4 78.Qxf6 Qe2+ 79.Kh3 Qg4+ 80.Kh2 Qe2+ draws.

    71.Kh1 Qg4 72.Qf1

    • Black wins any King-and-pawn ending.

    72...Qe4+ 73.Kh2 Qc2+ 74.Kg1 Qf5

    • 74...Qd2 75.Kh1 Kg8 76.Qb1 Kh7 77.Qg1 Qd7 78.Kh2 allows Black no progress.

    75.Qe2 Qg4 76.Qe5+

    • If 76.Qv3+ then White wins thanks to reserve pawn tempi.
    • If 76.Qb2+? Qd4+! 77.Qxd4+ cxd4 78.Kf1 Kf6 79.Ke2 Ke5 then:
      • 80.Kd3 f6!! 81.c5 Kd5 (forcing White to give way and allow Black to take on c5) 82.Kd2 Kxc5 83.Kd3 and Black wins with 83...f5!! (a second instance of reserve pawn tempi) 84.Kc2 Kc4, seizing the opposition.
      • If 80.Kd2 then Black wins after 80...Kd6 81.Ke2 Kc5 82.Kd3 f6!!.

    76...Kh7 77.Qxc5?

    • White blinks and drop the g-pawn.
    • If 77.Qc3 Qe2 78.Qc1 then:
      • If 78...Kg8 79.Kh1 Qe4+ 80.Kg1 Qf3 81.Kh2 Qf2+ then:
        • 82.Kh3 Qe2 83.Qc3 Kf8 84.Qc1 Qf3 continues to give Black an extra pawn, but without much hope of further progress..
        • If 82.Kh1?? then Black wins after 82...Qxg3! 83.Qc2 Qxh4+.
      • If 78...Qf3 79.Kh2 Qf2+ 80.Kh3 Kg8 then:
        • 81.Qc3 Qf1+ 82.Kh2 Qe2+ 83.Kg1 Kf8 84.Qc1 Qf3 gives Black an extra pawn, but the game is noty yet won.
        • 81.Qd1 Qf5+ 82.Kh2 Qe4 83.Qc1 Kf8 84.Qc3 Ke7 gives Black an extra pawn, but it isn't passed.


    BLACK: Christian Bauer




    WHITE: Laurent Fressinet
    Position after 77.Qe5c5:p


    77...Qxg3+ 78.Kf1

    • 78.Kh1 is no better.

    78...Qxh4!?

    • If 78...Qf4+! then Black wins after 79.Kg2 Qe4+ 80.Kg1 Kg7 81.Qg5 Qxc4.

    79.Qd5! Qf4+ 80.Kg1?

    • White loses again.
    • If 80.Kg2! Kh6 81.c5 h4 then:
      • 82.c6 Qg3+ 83.Kh1 h3 84.Qe4 g5 85.Qc2 Qc7 86.Qc3 Kg6 gives Black no immediate win.
      • 82.Qd6 Qe4+ 83.Kh2 f5 84.c6 Qc2+ 85.Kh3 Kh5 leaves the game in doubt: Black has three connected passers, but White has a andvance passed pawn unobstructed and under escort.


    BLACK: Christian Bauer




    WHITE: Laurent Fressinet
    Position after 80.Kf1g1


    80...h4!

    • The pawn move down to squeeze the space out of the King sanctuary.
    • If 80...Kg7 81.c5 h4 82.c6 h3 then:
      • If 83.Kh1 then Black wins after 83...Qxc7 84.Qd4+ f6 85.Qg4 Qc1+.
      • If 83.c7 then Black wins after 83...g5 84.c7 Qc1+ 85.Kh2 Qxc7+ 86.Kxh3 Qf4.

    81.c5 Kg7 82.c6 h3 83.Kh1

    • 83.Qd7 loses to 83...Qg3+ 84.Kf1 Qg2+ 85.Ke1 h2.

    83...g5 84.Kg1

    • If 84.c7 then Black wins after 84...Qc1+ 85.Kh2 Qxc7+ 86.Kxh3 Qf4 87.Kg2 f5.

    84...g4 85.c7 g3 0-1

    • No matter White moves, mate cannot be prevented.
    • 86.Qc5 h2+ 87.Kg2 h1Q+ 88.Kxh1 Qf1+ 89.Qg1 Qh3+ 90.Qh2 Qxh2#.
    • 86.c8Q Qf2+ 87.Kh1 Qh2#.
    • M. Fressinet resigns.

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    Response to Jack Rabbit (Reply #9)

    Sat Sep 22, 2012, 09:31 PM

    29. Bacrot - Istratescu, Round 6



    Etienne Bacrot
    Photo by Stefan64 (http://commons.wikimedia.org/wiki/User:Stefan64) in Wikipedia Commons (http://en.wikipedia.org/wiki/File:Christian_Bauer.jpg)
    (Creative Commons License, Attribution/Share Alike)


    Etienne Bacrot - Andrei Istratescu
    French Championships, General Group, Round 6
    Pau, 18 August 2012

    Slav Queen's Gambit: Cameleon Defese


    1.c4 c6 2.d4 d5 3.Nc3 Nf6 4.e3 a6 5.Nf3 b5

    • For a brief survey of the Cameleon Defense, see Kazhgaleyev-S. Volkov, Chigorin Mem Op, St. Petersburg, 2009.

    6.c5 Bg4 7.Qb3!?

    • White plays an unusual move to get his opponent out of the book quicker.
    • If 7.h3 Bxf3 then:
      • If 8.Qxf3! Nbd7 9.g4 e5 10.g5 then:
        • 10...e4 11.Qe2 Ng8 12.h4 g6 13.f3 gives White more active pieces, the ability to nibble at Black's center and a small advantage in space (Zvjaginsev-Amonatov, Russian ChT, Sochi, 2004).
        • If 10...Ng8 11.h4 then:
          • If 11...Qe7 12.Ne2 h6 13.Bh3 then:
            • 13...g6 14.Bd2 f5 15.gxf6 Ngxf6 16.Qg2 gives White fewer exploitable pawn weaknesses, the initiative against Black's kingside and more space (Sakaev-Bryzgalin, Russian Ch, Kazan, 2005).
            • 13...exd4? 14.exd4! 0-0-0 15.a4 b4 16.Bd2 a5 17.0-0-0 gives White more freedom, more space and better development.
          • If 11...h6 12.Bh3 Ne7 13.Bd2 then:
            • 13...Qc7? 14.Ne2 e4 15.Qg2 g6 16.f3 gives White firm command of the kingside (Bischoff-Muse, German Inet Ch, Cyberspace, 2005).
            • 13...g6 14.0-0-0 Bg7 15.Rhe1 hxg5 16.hxg5 gives White a substantial advantage in space.
      • If 8.gxf3?! then:
        • If 8...Nbd7! 9.f4 g6 10.Bd3 e6 11.Bd2 then:
          • 11...Bg7 12.b4 Ng8 13.a4 Ne7 14.Ne2 Nf5 is equal (Piket-Bosch, Dutch Ch, Amsterdam, 1994).
          • 11...Be7 12.b4 0-0 13.a4 Nh5 14.Qe2 is equal (Gelfand-Anand, Tal Mem Blitz, Moscow, 2007).
    • If 8...e5?! 9.dxe5! Nfd7 10.f4 Nxc5 then:
      • 11.Bg2!? 11...Be7! 12.0-0 0-0 13.e4 d4 14.Ne2 d3 is equal (Hammes-Diogo, Portuguese ChT, Matosinhos, 2012).
      • 11.Bd2 Nbd7 12.Qc2 Qb6 13.b4 Ne6 14.Ne2 gives White a comfortable game.

    7...Bxf3! 8.gxf3 e5 9.a4 Nbd7 10.Na2!?

    • If 10.Qa3 Rc8 11.axb5 axb5 12.Qa5 then:
      • 12...Be7 13.Qxd8+ Bxd8 14.Ra6 0-0 15.Bh3 Rc7 16.Bd2 gives White a fair advantage in space (Svetushkin-Braun, Op, Werther, 2005).
      • If 12...Rc7 then:
        • If 13.Qa8!? Rc8! 14.Qa5 Rc7 then:
          • If 15.Bxb5?! cxb5 16.Nxb5 then:
            • If 16...Rb7!? 17.Qa6! Qb8 then:
              • 18.Na7? Bxc5 19.dxc5 Nxc5 20.Qc6+ Nfd7 gives Black a solid center and stronger pawns; White's forward pieces are stranded (Tihonov-Zakhartsov, Op, Kharkov, 2005).
              • 18.Qc6 Ke7 19.Ra5 h5 20.Bd2 gives White a strong game with an exceptional advantage in space.
            • If 16...Rc8 17.Qxd8+ then:
              • 17...Kxd8! 18.Na7 Rc7 19.b4 Rg8 20.b5 exd4 21.exd4 is equal.
              • 17...Rxd8?! 18.c6! e4 19.cxd7+ Kxd7 20.fxe4 dxe4 21.Rg1 gives White an extra pawn and two passers; Black has a better Bishop.
        • 15.Bg2 Be7 16.0-0 0-0 17.f4 e4 18.f3 gives White a small advantage by chipping away at Black's center and holding a great deal more space.
      • If 13.Bg2! Be7 14.0-0 0-0 then:
        • 15.Na2 Nh5 16.f4 exd4 17.exd4 g6 18.Nb4 gives White a small advantage in space while Black has better kingside pawns and a target in the weakling at f4.
        • 15.f4 e4 16.f3 exf3 17.Rxf3 Nh5 18.Bd2 gives White more space; Black has slightly stronger pawns.


    10...Qc8 11.Qa3 (N)

    • 11.Nb4 Be7 12.axb5 axb5 13.Rxa8 Qxa8 14.Qa3 is equal (P. Smirnov-Fatkhutdinov, Polugaevsky Mem, Samara, 2012).

    11...Be7

    • The game is equal.

    12.Nb4 0-0 13.axb5 cxb5 14.Bh3

    • 14.Qb3 exd4 15.exd4 Re8 16.Be2 Nxc5 17.dxc5 Bxc5 remains equal.

    14...a5 15.Nd3 exd4!?

    • Black weakens his central pawns.
    • 15...e4 16.Ne5 Qc7 17.Nxd7 Nxd7 18.fxe4 dxe4 19.Bg2 remains equal.


    BLACK: Andrei Istratescu




    WHITE: Etienne Bacrot
    Position after 15...ed4:p


    16.exd4!

    • White has a small advantage in space.

    16...Qb7 17.0-0 Nb8

    • Black will redeploy the Knight at c6, where it will attack d4.

    18.Ne5 Bd8

    • Going immediately to c6 is premature.
    • 18...Nc6 19.Nxc6 Qxc6 20.Re1 Bd8 21.Bf4 continues to give White a passed pawn and a small advantage in space.

    19.Qd3 Nc6 20.Re1

    • White decides not to exchange on c6; he has the advantage in space and such an exchange would relieve pressure on Black.
    • If 20.Nxc6 Qxc6 21.Bf4 Re8 22.Be5 Bc7 23.f4 continues to give White a small advantage.

    20...a4

    • Black would not benefit from exchanging Knights, either.
    • If 20...Nxe5?! then:
      • If 21.dxe5! Nd7 22.b4 Nxe5 23.Rxe5 Bf6 then:
        • 24.Qf5!! Bxe5 25.Qxe5 Rae8 26.Qd6 f5 27.c6 makes White's passed pawn more dangerous.
        • 24.Bb2 Bxe5 25.Bxe5 axb4 26.Rd1 Ra6 27.Bg2 gives White two active Bishops for a Rook and a pawn.
      • If 21.Rxe5?! then:
        • 21...Bc7! 22.Re1 h6 23.Bf1 Rfb8 24.Bg2 a4 25.Qf5 is equal.
        • 21...Nd7! 22.Re1 Nb8 23.Bf1 Nc6 24.Be3 Bf6 25.Rad1 is equal.

    21.Kh1!?

    • White is preparing to bring the Rook to g1, perhaps followed by Nc1h6.
    • If 21.Bf4! (completing development and reinforcing the central Knight) 21...Nb4 then:
      • 22.Qe2 Re8 23.Bf1 Re6 24.Bg3 Rb8 25.Qd1 gives White a better center.
      • If 22.Qc3 Nc6 23.Nxc6 Qxc6 24.Re3 then:
        • 24...Ra7 25.Bf1 Bc7 26.Bxc7 Rxc7 27.Qa5 Rb7 28.b3 gives White a small advantage in space.
        • 24...Ba5 25.Qc2 Nh5 26.Bd6 Rfd8 27.Bf5 g6 28.Bd3 gives White a better center and a slight edge in space; Black has a safer King and a queenside majority.


    BLACK: Andrei Istratescu




    WHITE: Etienne Bacrot
    Position after 21.Kh1g1


    21...Re8!

    • White still has a small advantage

    22.Bf4 Ba5

    • 22...Bc7! 23.Bg3 g6 24.Bf1 Rab8 25.Nxc6 Qxc6 26.Re3 gives White a slight advantage.

    23.Re3

    • If 23.Rg1! Nh5 24.Be3 g6 25.f4 then:
      • 25...Bc7 26.Bd7 Bxe5 27.Bxe8 Bxf4 28.Bxc6 Qxc6 29.Rae1 gives Black only a pawn for the exchange.
      • If 25...Nb4 26.Qe2 then:
        • 26...Ng7 27.f5 Rxe5 28.dxe5 Nxf5 29.Bxf5 d4+ 30.Rg2 dxe3 31.e6 gives Black the material edge but White is much more active.
        • If 26...Nf6? then White wins after 27.f5! Kg7 28.Qf3 Ra6 29.fxg6 hxg6 30.Bf5.

    23...Nh5 24.Bg3 Nxg3+ 25.hxg3 Nxe5

    • If 25...Nb4?! 26.Qe2 Nc6 27.Rd1 then:
      • 27...b4 then White wins after 28.f4 g6 29.Kg2 f5 30.Kf1 Rad8 31.Bg2 gives White a passed pawn and a fair advantage in space; Black has a queenside majority.
      • If 27...Nxe5? then White wins after 28.f4! Ra6 29.Rxe5 Rxe5 30.fxe5 Rh6 31.Kg2.

    26.dxe5

    • 26.Rxe5 Rxe5 27.dxe5 Qc6 28.Qd4 Bd8 29.Rd1 gives White a passed pawn, the better Bishop and a small advantage in space; Black has a passed pawn and a queenside majority.

    26...d4?!

    • The pawn sacrifice is dubious. Black is looking to gain activity for his Rooks.
    • If 26...Qc6 27.Qd4 Bd8 28.f4 Be7 29.Rc1 Ra7 30.Rd3 gives White a comfortable game.


    BLACK: Andrei Istratescu




    WHITE: Etienne Bacrot
    Position after 26...d5d4


    27.Qxd4!

    • White has a comfortable game.

    27...Rad8 28.Qe4 Qxe4 29.Rxe4

    • White has an extra pawn.

    29...Rd2

    • Thanks to the activity of the Rook, Black recovers the pawn.

    30.b4 axb3

    BLACK: Andrei Istratescu




    WHITE: Etienne Bacrot
    Position after 30...ab3:p (ep)


    31.Rxa5!!

    • This doesn't win a piece, but it is the beginning of an exchange sacrifice.

    31...Rd1+ 32.Kg2 b2 33.Rxb5!

    • White sacrifices the excange and picks up two pawns.

    33...b1Q

    • The pawn is a desperado. This is far and away the best way to give it up.
    • If 33...Rd2? then White wins after 34.c6! Rc2 35.Bd7 Kf8 36.Reb4.

    34.Rxb1 Rxb1 35.Rc4?!

    • More efficient is to use the Bishop to cover the pawn on c6, leaving the Rook free to occupy an open file.
    • If 35.Bd7 Rd8 36.c6 Rc1 37.f4 then:
      • 37...Kf8 38.Rb4 Rc2 39.g4 h6 40.Rb7 Rc4 41.Kg3 gives White two pawns for the exchange with a passer on the sixth rank.
      • 37...g6?! 38.Rb4 h5 39.f5 gxf5 40.Rh4 Kf8 41.Rxh5 gives White two pawns for the exchange, stronger pawns and a passer on the sixth rank.

    35...Rb7?!

    • One of White's assets is his kingside majority. Black should take the opportunity to eliminte it.
    • If 35...Rxe5! 36.c6 Ree1 37.Bf5 Rbc1 38.Bc2 f5 is equal.


    BLACK: Andrei Istratescu




    WHITE: Etienne Bacrot
    Position after 35...Rb1b7


    36.c6!

    • White is quite comfortable now. With the Bishop firing at the promotion point, Black's next move is forced.

    36...Rc7 37.Bd7

    • Slightly better is 37.f4 Rb8 38.Bd7 Kf8 39.Ra4 Ke7 40.f5, giving White two pawns for the exchange and more freedom. Black's Rook at c7 cannot move.

    37...Rb8 38.f4 f6?!

    • Black allows White a second passed pawn.
    • If 38...Kf8 39.Ra4 then:
      • 39...Ke7 40.g4 Rd8 41.f5 gives White two pawns for the exchange, including a powerful passer; Black's Rook at c7 cannot move.
      • If 39...f6 then:
        • 40.g4 Ke7 41.g5 Rf8 42.Ra3 f5 43.Rb3 gives White two passed pawns for the exchange.
        • 40.e6!? f5 41.f3 Ke7 42.Ra5 Rf8 43.Kf2 g6 gives White two passed pawns for the exchange; Black's Rook at c7 cannot move.

    39.e6!

    • White has a second passed pawn.

    39...Kf8 40.f5 Rb5?!

    • It is necessary to blockade to e7. The Rook should not leave th back rank.
    • If 40...Ke7 41.Rg4 Rg8 42.Rb4 Rd8 43.Rb6 then:
      • 43...g6 44.Kf3 gxf5 45.Rb1 h5 46.Kf4 Rg8 47.Ra1 gives White two passers, stronger pawns and more freedom; Black has White's passers under blockade and he could get some counterplay on the g-file.
      • If 43...Ra7? 44.Rb7 then:
        • If 44...Rda8 then White wins after 45.Bc8+ Kd6 46.c7 g6 47.Rxa7 Rxc8 48.Kf3.
        • If 44...Rb7 then White wins easily after 45.cxb7 Rb8 46.Bc8 Kd6 47.Kf3 Ke7 48.Ke3.


    BLACK: Andrei Istratescu




    WHITE: Etienne Bacrot
    40...Rb8b5
    Position after 40...Rb8b5


    41.Ra4!

    • White wins whether he seizes and open file, threatens a black or supports one of his own pawns.
    • If 41.Re4! then:
      • If 41...Re5 42.Rh4 h6 43.Ra4 Ke7 44.Rg4 then:
        • If 44...Kf8 45.Rb4 Ke7 46.Rb8 Kd6 47.Rg8 then:
          • 47...Ra7 48.Rxg7 Rxf5 49.f4 Rc5 50.e7 Rxd7 51.e8Q Rxg7 52.Qf8+ leaves White with a Queen against a Rook.
          • If 47...Rc5 then White wins after 48.Rxg7 R5xc6 49.Rf7 Rc2 50.Rxf6 R7c5 51.Rf8.
        • If 44...Kd6 45.Rxg7 Rxf5 46.f4 then:
          • If 46...Rxc6 then White wins after 47.Bxc6 Kxc6 48.Rd7 Ra5 49.Rd8 Ra7 50.Rf8.
          • If 46...Rc5 then White wins after 47.Rf7 Rc2+ 48.Kf3 R7xc6 49.Bxc6 Kxc6 50.Rxf6.
      • If 41...Ke7 42.Rg4 Kf8 43.Rh4 then:
        • If 43...h6 44.Ra4 Ke7 45.Rg4 then:
          • 45...Kf8 46.Kh3 Rc5 47.Rb4 gives White two pawn and a safer King for the exchange.
          • If 45...Kd6? 46.Rxg7 Rxf5 47.f4 then:
            • If 47...Ra5 48.e7 Ra8 49.Kh3 Rca7 50.Kg4 then:
              • If 50...Ra5 then White wins after 51.e8Q Rxe8 52.Bxe8 Ra8 53.Rd7+.
              • If 50...h5+ then White wins after 51.Kxh5 f5 52.e8Q Rxe8 53.Rg6+ Kc7 54.Bxe8.
            • If 47...Rxc6 then White wins after 48.Bxc6 Kxe6 49.Bd7+.
        • If 43...Rc5 44.Rxh7 then:
          • If 44...Ra7 45.Rh8+ Ke7 46.Rg8 then:
            • If 46...Kd6 47.Rxg7 Rxc6 48.Rf7 Rc2 49.Rxf6 Raa2 50.Kh3 then:
              • If 50...Re2 51.Rf8 Ke7 52.Re8+ then:
                • If 52...Kf6 53.Rg8 Rxf2 54.Rg6+ Ke7 55.Rg7+ then:
                  • 55...Kd6 56.Bb5 Rxf5 57.e7 Re5 58.e8Q wins a Rook.
                  • 55...Kf6 56.e7 Ra8 57.e8Q Rxe8 58.Rg6+! wins a Rook.
                • If 52...Kd6 then White wins after 53.f4 Rh2+ 54.Kg4 Rh6 55.f6 Rxf6 56.Kg5.
              • If 50...Rxf2 51.Kh4 Ra8 52.g4 Rg8 53.Rg6 then:
                • If 53...Rxg6 then White wins after 54.fxg6 Rf8 55.Kg5 Rg8 56.Kf6 Rf8+ 57.Kg7.
                • If 53...Rb8 54.f6 Rf3 55.f7 then:
                  • If 55...Rh8+ then White wins after 56.Kg5 Rf8 57.Rg8 R3xf7 58.exf7 Rxf7 59.Bf5.
                  • If 55...Rf8 then White wins after 56.g5 Rf1 57.Rg8 R1xf7 58.exf7 Rxf7 59.Bg4 Rh7+ 60.Bh5.
            • If 46...Rxf5 then White wins after 47.Rxg7+ Kd6 48.f4 Rc5 49.Rf7 Rc2+ 50.Kh3.
          • If 44...Rc2 45.Rh8+ Ke7 46.Rg8 Kd6 47.Rxg7 R2xc6 48.Rf7 White wins.
    • If 41.Rh4 h6 42.Rf4 then:
      • If 42...Rb6 43.Ra4 Rb8 44.Kh3 then:
        • If 44...Ke7 45.Kh4 Rb2 46.Rf4 then:
          • 46...Ra7 47.Kh5 Rc7 48.Rg4 Kf8 49.e7+ Kxe7 50.Rxg7+ leaves Black's pawns ready to fall like autumn leaves.
          • If 46...Rb5 47.Kg4 h5+ 48.Kh4 then:
            • If 48...g5+ 49.fxg6 Rg5 50.Rxf6 Kxf6 51.e7 then:
              • If 51...Re5 52.e8Q Rxe8 53.Bxe8 then:
                • 53...Ra7 54.f4 Ra3 55.Bd7 Rc3 56.f5 Rc5 57.Kxh5 gives White four moble passed pawns for the exchange.
                • If 53...Kg7 then White wins after 54.f4 Kh6 55.g4 hxg4 56.Kxg4 Ra7 57.Kf5.
              • If 51...Rg4+ then White wins after 52.Kxh5 Re4 53.e8Q Rxe8 54.Bxe8.
            • If 48...Rb8 then White wins after 49.Kxh5 Rh8+ 50.Kg6 Rh6+ 51.Kxg7.
        • If 44...Rb5 then White wins after 45.Ra8+ Ke7 46.Rg8 Kd6 47.f4 Rc5 48.Kh4.
      • If 42...Rb8 43.Kh3 Rb1 44.Ra4 then:
        • If 44...Rh1+ 45.Kg2 Rc1 46.Ra8+ Ke7 then:
          • If 47.Rg8 Kd6 then:
            • 48.Rxg7 R1xc6 49.Rf7 Rc4 50.Rxf6 R4c5 51.g4 allows White's pawns to triumph.
            • White also wins after 48.Rf8 Rc5 49.Rf7 Rxf5 50.e7.
          • After 47.Re8+ Kd6 48.Rf8 Ra7 49.Rf7 Re1 50.Rxg7 Black's remaining pawns will soon fall.
        • If 44...Rf1 45.Ra8+ Ke7 46.Rg8 then:
          • 46...Kd6 47.Rxg7 Rh1+ 48.Kg4 h5+ 49.Kf3 Re1 50.Rf7 is an easy win for White.
          • If 46...Rxf2 47.Rxg7+ Kd6 48.Rf7 Re2 49.Rxf6 h5 50.Kh4.

    41...Rb8 42.Rh4 h6 43.Ra4

    • Just as good is 43.Rg4 Rb2 44.e7+ Kxe7 45.Rxg7+ Kf8 46.Rh7.

    43...Ke7 44.Kh3 Rb2?

    • Things are looking grim for Black as it is. The text move attacks a pawn that is already sufficiently protected and leaves the back rank undefended.
    • 44...h5 45.Kh4 Rh8 46.Ra2 Kd6 47.Ra3 Ke7 48.f3 gives White a substantial advantage with two pawns for the exchange, two advanced passers and more freedom.. Black's Rook still cannot stray from c7.


    BLACK: Andrei Istratescu




    WHITE: Etienne Bacrot
    Position after 44...Rb8b2


    45.Rg4! Kf8 46.Rf4

    • If 46.Re4 then White wins after 46...Ke7 47.Rf4 Rb6 48.Kg4 Rb5 49.Kh4.
    • 46.e7+?! Kxe7! 47.Rxg7+ Kf8 48.Rg6 Ke7 49.f4 gives White only a small advantage in spite of have two pawns for the exchange and an advanced passer. The White Rook has little freedom, allowing Black's Rook to frolich in counterplay..

    46...Re2 47.Kh4 1-0

    • If 47...Ke7 then White wins after 48.Kh5 Rc2 49.g4 Rc1 50.Kg6 when Black's pawns fall.
    • M. Istratescu resigns.

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    Response to Jack Rabbit (Reply #9)

    Sun Sep 23, 2012, 12:55 AM

    32. Skripchenko - Safranska, Women's Group, Round 6



    Almira Skripchenko
    Photo by Velho in Wikimedia Commons (http://commons.wikimedia.org/wiki/Category: Almira_Skripchenko)
    (Creative Commons License, Attribution/Share Alike)


    Almira Skripchenko - Anda Safranska
    French Championships, Women's Group, Round 6
    Pau, 20 August 2012

    Moorish Game: Horseman Defense
    (Alekhine Defense)


    1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 dxe5 5.Nxe5 c6 6.Be2 Nd7 7.Nf3


    7...N7f6

    • If 7...g6 8.c4 Nc7 9.Nc3 Bg7 10.0-0 0-0 then:
      • If 11.Be3 then:
        • 11...Nf6 12.h3 a6 13.Bf4 Ne6 14.Be3 gives White a small advantage in space (Hou Yifan-Dimalking, Op, Kuala Lumpur, 2010).
        • 11...b6 12.Rc1 Bb7 13.Qd2 c5 14.d5 e5 15.Ng5 f5 is equal (Weatherly-Benjamin, New York State Ch, Colonie, 2006).
      • 11.Re1 c5 12.d5 b5 13.cxb5 Nb6 14.Be3 gives White a small advantage in space (deFirmian-Miles, Op, Chicago, 1994).

    8.0-0 Bg4 9.h3 Bh5

    • 9...Bxf3 10.Bxf3 e6 11.c4 Nb6 12.b3 Be7 13.Bb2 gives White a comfortable game (Karjakin-Carlsen, Amber Rapid, Nice, 2008).

    10.c4 Nb6 11.b3 e6 12.Bb2! (N)

    • If 12.Be3 then:
      • 12...Be7 13.Nc3 0-0 14.g4 Bg6 15.Ne5 gives White a small advantage in space (S. Ali-Hamer, Op, Gibraltar, 2012).
      • 12...Nbd7 13.Nc3 Bb4 14.Qc2 Bg6 15.Qb2 Qa5 16.Nb1 is equal; White's pawn duo is offset by Black advantage on the queenside; furthermore, Black has pressure on e4, while White is not cover the square at all (Smeets-Schroll, Euro Ch, Plovdiv, 2012).

    12...Be7

    • White has a small advantage in space. Mlle. Skripchenko novelty will likely be seen again from time to time. The idea is to put pressure on Black's King position once the center opens.

    13.Nbd2 0-0 14.Ne5 Bxe2

    • 14...Bg6?! 15.Nxg6! hxg6 16.Qc1 Nbd7 17.Nf3 gives White a comfortable game.

    15.Qxe2 c5?!

    • This allows White to open the game to her advantage.
    • Better is 15...Nbd7 when 16.Qe3 Qc7 17.Nd3 h6 18.Nf3 Qa5 19.Nde5 continues to give Black a small adfvantage in space


    BLACK: Anda Safranska




    WHITE: Almira Skripchenko
    Position after 15...c6c5


    16.Rad1!

    • White now has a substantial advantage in space.
    • Also good is 16.dxc5 Bxc5 17.Ndf3 h6 18.Rfd1 Qc7 19.Rac1 Rfd8 20.Nd3.

    16...cxd4 17.Ndf3

    • The pawn at d4 is attacked three times and defend only by the Queen at d8.

    17...Qc7 18.Nxd4 a6

    • If 18...Bc5 19.Nb5 then:
      • 19...Qe7 20.Nd3 a6 21.Bxf6 Qxf6 22.Nxc5 axb5 23.Rd6 gives White greater activity for her pieces.
      • If 19...Qc8 20.Qf3 then:
        • 20...Ne8 21.Rd2 Bb4 22.Bc3 Bxc3 23.Nxc3 f6 24.Ng4 gives White greater activity for her pieces.
        • 20...Be7 21.Rfe1 Nbd7 22.Nxd7 Nxd7 23.Re3 Nf6 24.Bxf6 allows White to plop a Knight firmly on d6.
    • If 18...Rad8 19.Nxf7 Rxf7 20.Nxe6 then:
      • 20...Qc8 21.Nxd8 Bxd8 22.c5 Re7 23.Qf3 Nbd7 24.b4 gives White a Rook and two pawns for a minor piece..
      • If 20...Rxd1 21.Rxd1 Qc6 22.Ng5 then:
        • 22...Nbd7 23.Bc3 Nf8 24.Nxf7 Kxf7 25.Re1 Ne6 26.b4 leaves White two pawns to the good.
        • If 22...h6 23.Nxf7 Kxf7 24.Re1 Bf8 25.Bxf6 Kxf6 26.Qe5+ leaves White two pawns to the good.


    BLACK: Anda Safranska




    WHITE: Almira Skripchenko
    Position after 18...a7a6


    19.Rd3

    • White has a solid grip on the center and a healthy queenside majority

    19...Rad8

    • Black needs to be concerned about White doubling her Rooks in the d-file.

    20.Rfd1 Qc8 21.Bc3 Bc5 22.Ng4!?

    • White has the advantage in space and shouldn't be looking to exchange pieces.
    • If 22.b4! Be7 then:
      • If 23.Rg3 g6 24.c5 Nbd7 25.Nc4 Qc7 26.Bb2 gives White more activity and a substantial advantage in space.
      • If 23.c5 then:
        • If 23...Nfd5 then:
          • 24.Bd2 Nd7 25.Nxf7 Rxf7 26.Nxe6 Re8 27.Rxd5 gives White a tremendous advantage in space.
          • If 24.cxb6?? then Black wins after 24...Nxc3 25.Qe1 Nxd1 26.Rxd1 Rd5.
        • 23...Nbd5?! 24.Bd2 Qc7 25.Re1 h6 26.a3 gives White better minor pieces and a substantial advantage in space.

    22...Nxg4 23.Qxg4 g6 24.Qe4 Rde8?

    • Black plays the wrong Rook to e8. The Rook is useful at d8.
    • If 24...Rfe8 25.Nf3 then:
      • 25...Rxd3 26.Qxd3 Qc7 27.a4 Be7 28.a5 Nc8 29.Qd4 fotces White to further weaken her queenside pawns in order to avoid an immediate mate.

      • 25...Be7 26.Ne5 Rxd3 27.Rxd3 Rd8 28.Rxd8+ Bxd8 29.Ng4 gives Whie a strong game.
    • If 24...Qc7? 25.Nxe6!! then:
      • 25...Rxd3 26.Nxc7 Rxd1+ 27.Kh2 Bd6+ 28.Be5 f5 29.Qf4 gives White a Queen and a pawn for two Rooks and a healthy queenside majority.
      • 25...fxe6 then White wins after 26.Qxe6+ Qf7 27.Qxf7+ Rxf7 28.Rxd8+ Rf8 29.Rxf8+.

    25.b4?!

    • White creates a hole at a4.
    • If 25.a4! e5 26.Nf3 a5 27.Bxa5 then:
      • 27...Bxf2+ 28.Kxf2 Qc5+ 29.Re3 Qxa5 30.Qxb7 Qc5 31.Ng5 gives White an extra pawn and greater activitty.
      • If 27...f5? 28.Qh4 then:
        • 28...e4 29.Ng5!! (threatening mate on h7) 29...Re7 30.Rd6!! Bxd6 31.Rxd6 Nxc4 32.bxc4 gives White two pieces for a Rook.
        • If 28...Qc6 then White wins after 29.Bxb6 Qxb6 30.Rd7 h5 31.a5 Qf6 32.Qxf6 Rxf6 33.R1d5.

    25...f5?!

    • Black fails to exploit the hole while she can; and now:
    • If 25...Na4 26.bxc5 Nxc5 27.Qh4 then:
      • 27...Nxd3 28.Rxd3 e5 29.Nc2 Qf5 30.Rd2 g5 31.Qg3 gives White two minor pieces for a Rook and a pawn and more activity.
      • If 27...e5? then White wins after 28.Re3! f6 29.Nc2 g5 30.Qh6 Qf5 31.Re2.
    • If 25...Bd6 26.c5 Nd5 then:
      • If 27.a3 Nxc3 28.Rxc3 then:
        • 28...Rd8 29.Nc6 Bh2+ 30.Kxh2 Qxc6 31.Qxc6 bxc6 32.Rd6 gives White a small advantage in space.
        • 28...Be7?! 29.c6 Rd8 30.Rdd3 bxc6 31.Qxc6 Kg7 32.Qb6 gives White a better center and mor active pieces.
      • If 27.Bb2 then:
        • If 27...Bb8 28.Nb3 then:
          • 28...Nf4 29.R3d2 Rd8 30.Qf3 Rxd2 31.Nxd2 e5 32.Nc4 gives White a comfortable game.
          • 28...Bc7 29.h4 Rd8 30.g3 h5 31.a3 Qd7 32.Qc4 gives White a tactical advantage.
        • 27...Bc7 28.Ne2 b6 29.Qc4 a5 30.a3 axb4 31.axb4 gives White a small advantage in space.


    BLACK: Anda Safranska




    WHITE: Almira Skripchenko
    Position after 25...f7f5


    26.Qe5!

    • White takes command of the long dark diagonal, an open lane of attack tangent to the Black King.

    26...Nd7 27.Qg3?!

    • White should not remove the Queen from the center.
    • If 27.Qe2 Bxd4 28.Rxd4 Nf6 29.Qe5 Rf7 30.c5 continues to give White an excellent center and more freedom.

    27...Bxd4?!

    • The Knight has few good escape routes. Black should wait before taking.
    • If 27...f4! 28.Qh4 Be7 29.Qh6 then:
      • If 29...Rf7 30.Nxe6 then:
        • 30...Ne5! 31.Bxe5 Qxe6 32.Bxf4 Qxc4 33.Rd4 Qxa2 34.Re4 is equal.
        • If 30...Qxc4?! 31.Nxf4 then:
          • 31...Bxb4 32.Bxb4 Qxb4 33.Rxd7 Qxf4 34.Qxf4 Rxf4 35.Rxb7 gives White an extra pawn.
          • 31...Bf8 32.Qg5 Qxf4 33.Qxf4 Rxf4 34.Rxd7 Re2 35.Bd4 gives White an extra pawn.
      • If 29...Ne5? 30.Nf3 Nxf3+ 31.Rxf3 then:
        • 31...Bf6 32.Bxf6 Rxf6 33.Rxf4 Rxf4 34.Qxf4 e5 35.Qe4 gives White an extra pawn and more activity.
        • If 31...Rf7 32.Rxf4 then:
          • 32...Ref8 33.Be5 Bf6 34.Bxf6 Rxf6 35.Rxf6 Rxf6 36.Qh4 gives White an extra pawn, more activity and the initiative.
          • 32...Bf8? 33.Qg5! Rxf4 34.Qxf4 Rd8 35.Rxd8 Qxd8 36.c5 gives White an extra pawn, better pawns and command of the long dark diagonal.

    28.Rxd4! Rf7?

    • With White's Rooks in command of the d-file, Black should keep his back rank defended move the Knight to safety.
    • If 28...Nf6 29.Qe5 Rf7 30.c5 h5 31.Rd6 Kh7 32.f3 gives White more freedom, but Black's position is defended.
    • If 28...Nb6? then after 29.Qe5! Re7 30.Rd8 Qxd8 31.Qh8+ Kf7 32.Qf6+ when White wins at least a Rook.

    29.Qd3?!

    • White dallies. The correct rejoinder wins the game.
    • If 29.Rd6! f4 30.Qd3 Nf6 31.a3 then:
      • If 31...Nh5 32.f3 Ng3 33.Re1 then:
        • 33...Nf5 34.Rexe6 Rxe6 35.Rd8+ Re8 36.Rxc8 Rxc8 37.c5 gives White a strong extra pawn and a Queen againts a pair of Rooks.
        • 33...Rf5 then White wins after 34.c5 Kf8 35.Qd2 Nh5 36.Re4 a5 37.Red4.
      • 31...a5 32.Re1 f3 33.Qxf3 Nd5 34.Qd3 axb4 35.axb4 gives White stronger pawns and the initiative.

    29...Nf8?

    • Of course, the Knight must leave d7, but at b6 it ties the foremost Rook to the defense of the c-pawn.
    • If 29...Nb6 30.f4 Kf8 31.Rd8 Rxd8 32.Qxd8+ Qxd8 33.Rxd8+ is clearly better for White, but Black has relieved some pressure by exhanging Queens and now has some room to maneuver.


    BLACK: Anda Safranska




    WHITE: Almira Skripchenko
    Position after 29...Nd7f8


    30.Rd6!

    • Black has no good moves for her pieces.

    30...g5 31.c5 Qc7 32.Qc4 h6 33.a4 Rc8

    • A more stubborn defense is 33...Qe7 34.c6 Rc8 35.b5 axb5 36.axb5 but it's too late to change the outcome.

    34.Qd4 Kh7 35.Qh8+ Kg6 36.g4 1-0

    • If 36...fxg4 then White wins after 37.hxg4 Qe7 38.Re1 Rf6 39.Qg8+.
    • Mlle. Safranska resigns.

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    Response to Jack Rabbit (Reply #9)

    Thu Sep 27, 2012, 01:34 AM

    33. Maisuradze - Milliet, Women's Group, Round 6 (Opening Theory QID Petrosian -- Ending K+B+N vs K)



    Sophie Milliet
    Photo by karpidis on flickr (http://www.flickr.com/photos/8022405@N02/1810758954/)
    (Creative Commons License, Attribution/Share Alike)


    Nino Maisuradze - Sophie Milliet
    French Championships, Women's Group, Round 6
    Pau, 20 August 2012

    East India Game: Queen's Indian Defense (Petrosian Opening/Main Line)


    1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3

    BLACK




    WHITE
    East India Game: Queen's Indian Defense (Petrosian Opening)
    Position after 4.a3


    4...Bb7

    • The text is the Main Line.


    BLACK




    WHITE
    East India Game: Queen's Indian Defense (Petrosian Opening/Bronstein Variation)
    Position after 4...Ba6


    • (Bronstein Variation) If 4...Ba6 5.Qc2 Bb7 6.Nc3 c5 then:
      • If 7.e4 cxd4 8.Nxd4 Bc5 9.Nb3 Nc6 then:
        • If 10.Bf4 then:
          • If 10...0-0 then:
            • 11.Bd3 e5 12.Bg5 h6 13.Bh4 Be7 14.0-0 d6 is equal (Z. Almasi-I. Sokolov, Euro Ch, Rijeka, 2010).
            • 11.Nxc5 bxc5 12.Bd6 Nd4 13.Qd3 Re8 14.b4 e5 15.Rb1 cxb4 16.axb4 Re6 17.c5 is equal (M. Bosboom-Alekseev, IT C, Wijk aan Zee, 2005).
            • 11.0-0-0 e5 12.Bg5 Nd4 13.Nxd4 Bxd4 14.Bd3 Bxc3 15.bxc3 h6 16.Bh4 Qe7 17.Kb2 Rac8 gives Black the more active game (Pliasunov-Ionov, Chigorin Mem, St. Petersburg, 2001).
          • If 10...e5 11.Bg5 h6 12.Bh4 0-0 13.f3 then:
            • 13...Rc8 14.0-0-0 a6 15.Kb1 Nd4 16.Nxd4 Bxd4 17.Bf2 Bxf2 18.Qxf2 b5 19.cxb5 axb5 20.Nxb5 gives White an extra pawn, passers on the queenside more space (Kamsky-Freidel, World Op, Philadelphia, 2009).
            • 13...Be7 14.Rd1 Nh5 15.Bf2 Nf4 16.Qd2 d6 17.g3 Ne6 18.Bh3 gives White the advantage in space (Agdestein-Polugaevsky, Op, Reykjavik, 1987).
        • 10.Be2 0-0 11.h3 Nbd7 12.0-0 a6 13.Rfd1 gives White command of the d-file, the initiative against the d-pawn and more space (Johanessen-A. Kogan, IT, Oslo, 2002).
        • If 10.Bg5 h6 11.Bh4 Nd4 12.Nxd4 Bxd4 then:
          • If 13.Bd3 Qb8 then:
            • If 14.Bg3 Be5 15.0-0-0 0-0 16.Kb1 then:
              • 16...d6 17.Bxe5 dxe5 18.Qe2 Rd8 19.Qe3 Rd4 is equal (Khenkin-Adams, Bundesliga 0203, Germany, 2002).
              • 16...Rc8 17.Rhe1 d6 18.f4 Bxc3 19.Qxc3 b5 20.e5 Nd5 21.Qd4 bxc4 22.Bxc4 Nc3+ 23.Qxc3 d5 24.f5 Ba6 25.Qe3 draw (Zhu Chen-Xu Yuhua, FIDE Knock Out W, Shenyang, 2000).
            • 14.0-0 Be5 15.Bg3 Bxg3 16.hxg3 Qe5 17.Rad1 h5 18.f4 Qc5+ 19.Qf2 Ng4 20.Qxc5 bxc5 21.Rd2 h4 22.gxh4 draw (Ghaem Maghami-Yu Shaoteng, Asian Ch, Cebu, 2007).
          • 13.0-0-0 Bxc3 14.Qxc3 Bxe4 15.Qd4 Bc6 16.f4 Rc8 17.Kb1 0-0 gives Black an extra pawn (Pallister-Rowson, 4NCL, Birmingham, 2002).
      • If 7.dxc5 then:
        • If 7...bxc5 8.Bf4 then:
          • If 8...d6 9.e3 then:
            • 9...Nh5 10.Bg3 Be7 11.Be2 Nd7 12.Rd1 Nxg3 13.hxg3 gives White open files for his Rooks (Dokhoian-Khalifman, Bundesliga 9192, Germany, 1992).
            • If 9...Be7 10.h3 0-0 11.Be2 Qb6 12.0-0 then:
              • 12...Rd8?! 13.b4! Nbd7 14.Nd2 d5 15.cxd5 exd5 16.Na4 gives White the initiative, stronger pawns and a considerable advantage in space (Ivanchuk-Aronson, GMA Qual, Moscow, 1990).
              • 12...a5 13.Rad1 Nbd7 14.Rd2 e5 15.Bg3 Bc6 16.Ng5 continues to give White a small advantage in space.
          • If 8...Be7 9.Rd1 0-0 10.e3 then:
            • 10...Bxf3 11.gxf3 Nc6 12.Be2 Qb6 13.0-0 Rfd8 14.Rd2 is equal (Döttling-Carlsen, Dos Hermanas IT, Cyberspace, 2006).
            • 10...Qb6 11.Be2 d6 12.0-0 h6 13.Rd2 Nh5 14.Bg3 Nxg3 gives Black a slim advantage (Bartel-Olsewski, Polish Ch, Warsaw, 2012).
        • If 7...Bxc5 8.Bf4 0-0 9.Rd1 Nc6 10.e3 then:
          • If 10...Nh5 then:
            • If 11.Bg3 f5 then:
              • If 12.Be2 Nxg3 13.hxg3 Rf7 then:
                • If 14.g4 g6 15.gxf5 gxf5 then:
                  • 16.b4 Bf8 17.e4 Qf6 18.exf5 Ne5 19.Nxe5 Qxe5 20.fxe6 dxe6 21.Rd3 gives White an extra pawn, more piece activity and more space (Nechepurenko-Niemer, World Jr Ch, Gaziantep, Turkey, 2008).
                  • 16.Rh3?! Rg7! 17.g3 Qf6 18.Nb5 Rc8 19.b4 Bf8 is equal (S. Atalik-Kurajica, IT, Sarajevo, 2004).
                • If 14.Nb5 Qf6 15.Qc3 Qxc3+ 16.Nxc3 h6 then:
                  • 17.Nb5 Rc8 18.b4 Bf8 19.Nd6 Bxd6 20.Rxd6 gives White a slight advantage in space (Karpov-Gelfand, Amber Blind, Monte Carlo, 2000).
                  • 17.e4 fxe4 18.Nxe4 Nd4 19.Nxc5 Nxf3+ 20.gxf3 bxc5 21.Rh5 gives White a small advantage in space (Matveeva-Xu Yuhua, OlW, Bled, 2002).
              • If 12.Qd3 then:
                • 12...Qf6!? 13.Bd6 Bxd6 14.Qxd6 Rab8 15.Be2 Qg6 16.0-0 gives White a small advantage in space (Iljin-Tomashevsky, Russian Ch, Tomsk, 2006).
                • 12...Nxg3 13.hxg3 Rf7 transposes into S. Atalik-Kurajica at Black's 13th move, above.
            • If 11.Bg5 Be7 12.Bxe7 Qxe7 13.Nb5 then:
              • 13...d5 14.cxd5 exd5 15.Be2 Rac8 16.Qa4 a6 17.Nbd4 gives White a small advantage in space (K. Georgiev-Saric, Euro Ch, Plovdiv, 2008).
              • 13...Nf6 14.Nd6 Rab8 15.Be2 Ne8 16.Nxb7 Rxb7 17.0-0 gives White a slight edge (Banikas-Nikolov, Euro Ch, Plovdiv, 2008).
          • If 10...Rc8 11.Be2 Be7 12.0-0 a6 13.Qb1 then:
            • 13...Nh5 14.Bd6 f5 15.Bxe7 Qxe7 16.Na4 Qd8 17.c5 gives White a fair advantage in space (Yakkimaienen-Kholmov, Russian Ch, Elista, 1995).
            • If 13...d6 14.b4 then:
              • 14...Qc7?! 15.c5 e5 16.Bg5!! dxc5 17.Bxf6 Bxf6 18.Nd5 gives White a strong initiative and a splendid advantage in space in compensation for a sacrificed pawn (Rowson-Grant, Scottish Ch, Hamilton, 2004).
              • If 14...Re8 15.c5 d5 16.Na4 bxc5 17.Nxc5 Bxc5 18.bxc5 gives White a passed pawn and a comfortable game.


    BLACK




    WHITE
    East India Game: Queen's Indian Defense (Petrosian Opening/Main Line)
    Position after 4...Bb7


    5.Nc3 d5

    • Black stakes a claim in the center now, but he could postpose this action for later.
    • If 5...Be7 6.d5 then:
      • If 6...0-0 7.e4 d6 then:
        • If 8.Be2 e5 9.0-0 Nbd7 10.b4 a5 then:
          • 11.Be3! Nh5 12.g3 g6 13.Bh6 Ng7 14.Qd2 gives White a powerful advantage in space (S. Ivanov-Kolbus, Rilton Cup 0506, Stockholm, 2005).
          • If 11.Bb2!? Nh5 12.g3 g6 then:
            • 13.Ne1 Ng7! 14.Nd3 gives White a small advantage ins space (E. Agrest-Vijayalakshmi, Op, Bajada de la Virgen, 2005).
          • 13.Re1 Qc8 14.Qc2 Rd8 15.Na4 gives White a comfortable game.
      • If 8.Bd3 e5 then:
        • If 9.0-0 Nbd7 10.b4 Re8 then:
          • 11.Bc2 Bc8 12.Ba4 a6 13.Bc6 Ra7 14.h3 gives White a whale-sized lead in space (Farago-Ljubarski, Euro Sr Ch, Hockenheim, 2007).
          • 11.g3 Bf8 12.Nh4 g6 13.Be3 Bg7 14.Rc1 gives White a fair advantage in space (Antonshin-Martirosian, Sr IT, Yerevan, 1981).
        • 9.h3 Nbd7 10.g4 c6 11.Be3 cxd5 12.cxd5 is equal (Tjiam-Lauritsen, Politiken Cup, Copenhagen, 2006).
    • If 6...exd5 7.cxd5 0-0 then:
      • If 8.e4 then:
        • If 8...Re8 9.Bd3 then:
          • If 9...c6 10.0-0 cxd5 11.exd5 d6 then:
            • 12.Bf4 Nbd7 13.Rc1 a6 14.Re1 Rc8 15.Qd2 gives White a small advantage in space (Lukey-Watson, New Aealand Ch, Auckland, 2008).
            • 12.b4 Nbd7 13.Bb2 a6 14.Bc2 Ne5 15.Bb3 Rc8 is equal (Volodin-Njili, Ol, Torino, 2006).
          • 9...c5?! 10.0-0! d6 11.Nd2 Ba6 12.Qe2 Bxd3 13.Qxd3 gives White a comfortable game (Krasenkow-Lodhi, IT, Dakha, Bangladesh, 1995).
        • If 8...d6 9.Bd3 Nbd7 10.0-0 then:
          • 10...Nc5 11.Bc2 a5 12.Re1 Re8 13.Nd4 g6 14.Bh6 gives White a comfortable game (Bashkov-Matsenko, Op, Chelyabinsk, 2011).
          • 10...Ne5 11.Be2 Nxf3+ 12.Bxf3 Nd7 13.Qc2 Ba6 14.Rd1 gives White a small advantage in space (G. R. Lock-J. Ruigrok, Op, Guernsey, 2001).
      • If 8.g3 then:
        • 8...Re8 9.Bg2 Bf8 10.0-0 c6 11.Ng5 h6 12.Nh3 gives White a small advantage (Gaprindashvili-Ioseliani, Candidates' ½-final Match W, Tbilisi, 1980).
        • If 8...a5 9.Bg2 Na6 10.Nd4 then:
          • 10...Ne8?! 11.0-0! Rc8 12.Bf4 Bd6 13.Be3 f5 14.Qd2 gives White a comfortable game (Timman-Cardoso, IT, Nethanya, 1975).
          • 10...Nc5 11.Nf5 Ne8 12.Nb5 Bf6 13.0-0 Be5 14.f4 gives White a slight adavantage in space.
    • If 5...Ne4 6.Nxe4 Bxe4 then:
      • If 7.Nd2 Bb7 8.e4 Qf6 then:
        • If 9.d5 Bc5 then:
          • If 10.Nf3 Qg6 11.b4 Qxe4+ 12.Be2 then:
            • 12...Bd6 13.0-0 Qg6 14.Nd4 0-0 15.Bf3 f5 gives Black a small advantage in space (Schussler-W. Hartmann, Bundesliga 8182, West Germany, 1982).
            • 12...Be7!? 13.0-0 0-0 14.Bd3 Qg4 15.Re1 Bf6 16.Ra2 is equal (Korotylev-Ionov, Petroff Mem Op, St. Petersburg, 2000).
          • If 10.Qf3 then:
            • 10...Qxf3 11.Nxf3 a5 12.Bd3 d6 13.dxe6 fxe6 draw (Cmilyte-Kilio, EU Ch, Cork, Ireland, 2005).
            • 10...Bd4 11.Qxf6 Bxf6 12.Be2 0-0 13.0-0 Re8 gives Black more activity and, should the position soon open, he will have the better of it (Piket-Anand, IT, Guasdal, 1986).
        • If 9.e5 then:
          • 9...Qg6 10.Nf3 Be7 11.Be2 0-0 12.0-0 f6 13.Bf4 gives White a slight advantage in space (Polugaevsky-Speelman, IT, London, 1986).
          • 9...Qd8!? 10.Nf3 d5 11.Be3 Nd7 12.cxd5 Bxd5 13.Bd3 gives White a small advantage in space (Polugaevsky-Unzicker, Ol, Lucerne, 1982).
      • If a) 7.e3 then:
        • If 7...Be7 8.Bd3 Bxd3 9.Qxd3 d5 10.e4 then:
          • If 10...0-0 11.0-0 dxe4 12.Qxe4 Nd7 then:
            • If 13.Rd1 Nf6 14.Qe2 c6 15.Bf4 then:
              • 15...Qc8 16.d5 Re8 17.dxe6 Qxe6 18.Qxe6 fxe6 19.Re1 (Rodshtein-K. Arkell, Euro Ch, Rijeka, 2010).
              • 15...Rc8 16.Ne5 Nd7 17.d5 exd5 18.cxd5 Nxe5 19.dxc6 is equal (Gheorghiu-Panno, IT, Buenos Aires, 1978).
            • 13.Bf4 Bd6 14.Be3 Nf6 15.Qc2 Ng4 16.Bc1 gives White a small advantage in space (Fiorito-Slipak, Najdorf Mem, Buenos Aires, 2000).
          • 10...dxc4 11.Qxc4 Nd7 12.Qc6 0-0 13.Bf4 Rc8 14.Rd1 gives White a fair advantage in space (Krasenkow-E. Torre, IT, Djakarta, 1996).
        • If 7...c5 8.Bd3 Bxd3 9.Qxd3 cxd4 then:
          • If 10.Qxd4 Nc6 11.Qd3 Be7 12.e4 Qc7 13.0-0 0-0 14.b3 then:
            • 14...Bf6 15.Ra2 Rfd8 16.Rd1 Rac8 17.g3 d6 18.Bf4 gives White a small advantage in space (Gheorghiu-Ree, Op, Lone Pine, California, 1979).
            • 10.Nxd4 Nc6 then:
              • 11.0-0 Be7 12.Nf3 0-0 13.e4 Bf6 14.Ra2 is equal (Browne-Kavalek, ITZ, Manila, 1976).
              • 11.Nxc6 dxc6 12.Qe4 Qc7 13.Bd2 Bd6 14.Bc3 gives White a small advantage in space (Marjanovic-Browne, IT, Banja Luka, 1979).
      • If b) 7.Bf4 Be7 8.e3 then:
        • If 8...0-0 9.Bd3 Bxd3 10.Qxd3 then:
          • If 10...d6 11.e4 Nd7 12.0-0 then:
            • If 12...e5 then:
              • 13.dxe5 dxe5 14.Bxe5 Nxe5 15.Nxe5 Bd6 16.Qd5 gives Black a small advantage in space (Psakhis-Prandstetter, Capablanca Mem, Cienfuegos, 1983).
              • 13.Be3 exd4 14.Nxd4 Bf6 15.Rad1 a5 16.b3 gives White a slight advantage in space (Hort-Ambroz, IT, Trencianske Teplice, 1979).
            • 12...Qc8 13.h3 Qb7 14.b4 Rfd8 15.Qc2 a5 16.Bd2 gives White a small advantage in space (Huss-Keene, IT, Zürich, 1975).
          • 10...a5 11.0-0 d6 12.Rad1 Nd7 13.e4 Qc8 14.Qc2gives White a small advantage in space (Benjamin-Burger, Op, Reykjavik, 1986).
        • 8...c5 9.Bd3 Bxd3 10.Qxd3 cxd4 11.Nxd4 a6 12.Rd1 gives White a fair advantage in space and a slight lead in development (Petrosian-Korchnoi, Trng Trmt, Moscow 1966).

    6.Bg5

    • If 6.cxd5 Nxd5 then:
      • If 7.e3 g6 8.Bb5+ c6 9.Bd3 Bg7 10.Na4 then:
        • If 10...Nd7 11.e4 Ne7 12.0-0 0-0 then:
          • 13.Qe2 c5 14.dxc5 Nxc5 15.Nxc5 bxc5 16.Bg5 gives White a small advantage in space (Mamedyarov-Carlsen, Amber Rapid, Nice, 2008).
          • 13.Bg5 h6 14.Be3 Kh7 15.Qb3 Qc7 16.Rad1 gives White a solid center and more space (Kozul-Grischuk, Euro Ch, Istanbul, 2003).
        • If 10...Qc7 11.0-0 Nd7 then:
          • 12.e4 Nf4 13.Bc2 0-0 14.Be3 Rad8 15.Nc3 c5 is equal (Gelfand-Kramnik, Amber Rapid, Monte Carlo, 2004).
          • If 12.Bd2 0-0 13.Rc1 then:
            • 13...Rfd8 14.Qb3 Rac8 15.Rfe1 is equal (Kuljasevic-B. Socko, Euro Ch, Warsaw, 2005).
            • 13...Rad8 14.b4 e5 15.Qb3 N5f6 16.Bb1 Qb8 17.Rfd1 is equal ((Grischuk-Anand, Rapid m, Mainz, 2005).).
      • If 7.Qc2 Be7 then:
        • If 8.e4 Nxc3 9.bxc3 then:
          • 9...c5 10.Bb5+ Bc6 11.Bd3 0-0 12.0-0 Bb7 13.Bf4 gives White a small advantage in space (Jankovic-Sachdev, Op, Reykjavik, 2008).
          • If 9...0-0 10.Bd3 c5 11.0-0 then:
            • If 11...Qc8 12.Qe2 (White has a small advantage in space) 12...Ba6 13.Rd1 Bxd3 14.Rxd3 Nd7 then:
              • If 15.e5 cxd4 16.cxd4 then:
                • If 16...Qc4 17.Bg5 Bd8 18.Rad1 then:
                  • If 18...Qd5 19.h4 then:
                    • 19...f6?! 20.exf6 Bxf6 21.Re3 h6 22.Bf4 Rae8 23.Bg3 gives White a comfortable game(Radjabov-Leko, IT, Dortmund, 2003).
                    • 19...h6 20.Bxd8 Raxd8 21.Rc3 Rc8 22.Rdc1 Rxc3 23.Rxc3 continues to give White a small advantage in space.
                  • 18...Rc8 19.h4 h6 20.Bf4 Qd5 21.Nh2 f5 22.Bxh6 gives White a tactical edge on the kingside (Kransenkow-Cvitvan, Euro ChT, Plovdiv, 2003).
                • 16...Re8 17.Bg5 Nf8 18.h4 h6 19.Rc1 gives White a small advantage in space (Radjabov-Akopian, IT, Enghien-les-Bains, 2003).
              • If 15.h4 Qa6 16.Bg5 Rfe8 17.e5 Rac8 18.Re1 then:
                • 18...Bf8!? 19.Qe4!? cxd4 20.cxd4 Rc4 gives Black a slight advantage in space (Zhao Xue-Kursova, FIDE Knock OutW, Ekaterinburg, 2006).
                • 18...h6 19.Bxe7 Rxe7 20.Nd2 cxd4 21.cxd4 remains equal.
            • If 11...Qc7 12.Qe2 Nd7 13.Bb2 Rac8 then:
              • If 14.Rad1 Rfd8 15.Nd2 Qf4 16.e5 f5 17.exf6 Qxf6 18.Ne4 Qf7 19.Rfe1 cxd4 20.cxd4 Nf8 21.Qg4 Rd5 22.Rc1 Rxc1 draw (Cmilyte-Kunte, Op, Gibraltar, 2006).
              • 14.Nd2 Bg5 15.a4 Rfd8 16.Rfd1 Nf8 17.a5 Ng6 18.axb6 axb6 19.g3 Bf6 draw (Ruck-Z. Almasi, Hungarian Ch, Szekesfehervar, 2006).
        • If 8.Bd2 then:
          • If 8...0-0 9.e4 Nxc3 10.Bxc3 Nd7 then:
            • If 11.Rd1 then:
              • If 11...Qc8 12.Bd3 Rd8 13.0-0 then:
                • If 13...c5 14.d5 c4 15.Be2 exd5 16.exd5 then:
                  • 16...Bf6 17.Nd4 Bxd5 18.Nf5 Be6 19.Bxf6 Bxf5 20.Qxf5 Nxf6 21.Rxd8+ Qxd8 22.Bxc4 is equal (Miles-Polugaevsky, Biel, 1990).
                  • 16...Nf6? 17.Ng5! Bxd5 18.Bxf6 Bxf6 19.Qxh7+ Kf8 20.Bf3 Bxf3 21.Rde1 Black resigns (Khmelnitsky-Rodgaard, Op, Copenhagen, 1989).
                • If 13...Nf8 14.b4 Ng6 then:
                  • If 15.Qb2!? Bf8 16.Bd2 c5 17.Rc1 then:
                    • 17...Bc6?! 18.h4! Qb7 19.h5 Ne7 20.Rfe1 cxd4 21.Nxd4 gives White a comfortable advantage (Lputian-Z. Almasi, Ol, Moscow, 1994).
                    • 17...Qd7 18.Bg5 Be7 19.Bxe7 Qxe7 20.bxc5 bxc5 21.Rxc5 gives White a small tactical advantage.
                  • 15.Rfe1 c5 16.bxc5 bxc5 17.Ba5 Rd6 18.dxc5 continues to give White a small advantage in space.
              • If 11...c5 12.dxc5 then:
                • If 12...Qc7 13.cxb6 axb6 14.Bb5 Nc5 then:
                  • If 15.Be5 Qc8 16.0-0 Bxe4 17.Qc3 f6 then:
                    • 18.Bd6 Bxd6 19.Rxd6 Bd5 20.b4 draw (Zakharevich-Brodsky, Op, Krasnodar, 2003).
                    • If 18.Bg3!? Bd5 19.Rfe1 then:
                      • 19...Qb7?! 20.b4! Na4 21.Qe3 Rfc8 22.Rc1 gives White a comfortable game (Timoshchenko-Langeweg, Op, Benasque, 1996).
                      • 19...Rd8 20.Qc1 Ne4 21.Nd4 Bc5 22.Nc6 Re8 remains equal.
                  • 15.Rd4 Rfd8 16.0-0 Rxd4 17.Bxd4 Bxe4 18.Qc3 gives White a small advantage in space (Riazantsev-Sulskis, Euro Ch, Warsaw, 2005).
                  • 12...Qc8 13.cxb6 axb6 14.Bb5 Nc5 15.Rd4 Rd8 16.0-0 gives White a small tactical advantage (De Haan-Postny, Euro Club Cup, Ohrid, 2009).
            • If 11.0-0-0 Qc8 12.h4 Rd8 13.Rh3 then:
              • 13...h6 14.d5 Nf6 15.Ng5 hxg5! 16.hxg5 Ng4 17.f4 (Akopian-Granda Zuñiga, PCA Qual, Groningen, 1993).
              • 13...Nf8 14.h5 c5 15.Rg3 cxd4 16.Nxd4 Bf6 17.Nb5 is equal (Piket-Karpov, Match, Monte Carlo, 1999).
          • If 8...Nxc3 9.Bxc3 Qd5 10.e3 Nd7 then:
            • 11.Bd3 Nf6 12.Ne5 0-0 13.f3 c5 14.e4 Qd8 is equal (Bonin-Reshevsky, Op, Philadelphia, 1988).
            • 11.0-0-0 0-0-0 12.Qa4 Kb8 13.Bc4 Bc6 14.Qa6 Qh5 gives Black a small advantage in space (Galliamova-Als. Maric, Candidates' Trmt, Tilburg, 1994).

    6...Be7 7.e3

    • White cements her center. An alternative is to make a show of force on the weakened queenside.
    • If 7.Qa4+ c6 then:
      • If 8.Bxf6 Bxf6 9.cxd5 exd5 10.g3 0-0 11.Bg2 then:
        • If 11...c5 12.Rd1 Qe7 13.0-0 Rd8 then:
          • If 14.e3 then:
            • If 14...Na6 15.Rd2 Nc7 16.Rfd1 c4 then:
              • 17.Ne5 b5 18.Qa5 a6 19.Ng4 is equal (Almeida Quintana-Quesada Pérez, Cuban Ch, Santa Clara, 2005).
              • 17.Qc2 g6 18.Re1 b5 19.h4 Rab8 20.Rde2 a6 gives Black a small advantage in space; he should press on the queenside (Vitiugov-Sasikiran, Russian ChT, Sochi, 2012).
            • If 14...Nd7 then:
              • 15.Ne1 Nf8 16.dxc5 Bxc3 17.bxc3 Qxc5 18.c4 gives White a slight edge in space (Zvjagintsev-Savon, Moscow Op, 1991).
              • 15.Qb3 c4 16.Qc2 Nf8 17.Rfe1 Ne6 18.h4 Rac8 is equal (Delemarre-Van Wely, Op, Wijk aan Zee, 1995).
          • If 14.Rfe1 Na6 then:
            • 15.e3 Nc7 16.h4 Ne6 17.Nh2 then:
              • 17...h5 18.Qb3 Qd7 19.dxc5 Nxc5 20.Qc2 Qe6 21.Nf3 is equal (Van Wely-Onischuk, IT, Tilburg, 1997).
              • 17...cxd4 18.exd4 h5 19.Bh3 Rd6 20.Nf3 Bc6 21.Qc2 gives White a fair advantage in space (Van Wely-Bacrot, French ChT, 1998).
            • 15.e4 dxe4 16.Nxe4 Bxe4 17.Ng5 Qd7 18.Qxd7 Rxd7 19.Nxe4 gives White a small advantage in space; he will probably end up with stronger pawns (Van Wely-Z. Almasi, TT, Buekfuerdo, Hungary, 1995).
        • 11...Re8 12.0-0 Nd7 then:
          • If 13.Rfd1 g6 then:
            • 14.Rac1 Bg7 15.e3 Nf8 16.b4 a6 17.Qb3 Qd6 is equal (Piket-Lutz, PCA Qual, Groningen, 1995).
            • 14.e3 Bg7 15.Ne1 Nf6 16.Nd3 Qd6 17.Rac1 Ng4 is equal (Eljanov-Hera, Euro ChTU18, Balatonlelle, 2000).
          • If 13.Rad1 c5 then:
            • 14.Rfe1 a6 15.Qc2 Rc8 16.e3 Qc7 17.Rc1 g6 gives Black a slight advantage in space (Zlochevskij-B. Thorfinnsson. Euro Ch, Ohrid, 2001).
            • 14.Qc2 Qe7 15.Rfe1 Rac8 16.dxc5 Rxc5 17.Nd4 Rc4 18.Nf5 Qc5 gives Black a small advantage in space (Zhu Chen-Liu Shilan, Chinese ChTW, Suzhou, 2001).
      • If 8.cxd5 exd5 then:
        • If 9.e3 0-0 10.Bd3 Nbd7 11.0-0 Re8 then:
          • If 12.Rad1 Ne4 13.Bxe4 Bxg5 14.Bb1 then:
            • 14...Bh6 15.Rfe1 g6 16.e4 dxe4 17.Nxe4 Nf6 18.Ne5 leaves White slightly better (Piket-Ljubojevic, IT, Roqueburne, 1992).
            • If 14...Be7!? 15.Rfe1! g6 16.e4 then:
              • 16...dxe4!? then:
                • if 16...Nf6 then:
                  • 17.Nxe4! Qc7 18.Ba2 Rf8 19.Neg5 gives White a comfortable game (Kharitonov-Yasudin, Soviet Ch, Moscow, 1988).
                  • 17.h3 dxe4 18.Bxe4 Nxe4 19.Nxe4 Kg7 20.Rd3 gives White the edge with better piece placement; although Black has the Bishop pair and White an isolated d-pawn, Black's Queen's Bishop is poorly placed.
          • 12.Rac1 a6 13.Rfd1 Bd6 14.Qb3 h6 15.Bh4 gives White a small advantage in space (Wang Yue-Ljubojevic, TM, Amsterdam, 2008).
        • 9.Bxf6 Bxf6 10.g3 0-0 transposes into the main line of this note at Black's tenth move.

    7...0-0 8.Rc1 Nbd7 9.cxd5 exd5 10.Bd3

    • If 10.Be2 h6 then:
      • 11.Bf4 c5 12.0-0 a6 13.dxc5 bxc5 14.Qb3 gives White the initiative and a small advantage in space (Maiwald-Jakovenko, Euro Ch, Dresden, 2007).
      • 11.Bh4 c5 12.0-0 Rc8 13.dxc5 bxc5 14.Qb3 Qb6 is equal (Reggie Olay-D. Chakravarthy, Asian Ch, Subic Bay, 2009).

    10...c5 11.0-0 Ne4 12.Bxe7

    • White may either exchange or pull back.
    • If 12.Bf4 then:
      • If 12...Nxc3 13.Rxc3 c4 14.Bb1 b5 15.Ne5 then:
        • If 15...Nf6 16.f3 then:
          • 16...Nh5 17.Bg3 Bd6 18.Bf2 Qe7 19.g4 Nf6 gives Black a comfortable game (H. J. Plaskett-Psakhis, IT, Troon, 1984).
          • 16...a5 17.g4 Nd7 18.Rc2 Nxe5 19.Bxe5 Bd6 gives Black a comfortable game owing to his advanced queenside pawn majority (H. J. Plaskett-Chandler, IT, Hastings, 1986).
        • If 15...Nxe5 16.Bxe5 then:
          • 16...Bd6 17.f4 f5 18.g4 Bxe5 19.fxe5 fxg4 20.Qxg4 is equal (Bisguier-Pliester, Op, New York, 1989).
          • 16...g6 17.f3 Re8 18.Rc2 a5 19.g3 Bf8 gives Black a comfortable game with a tactical advantage; the threat is 20...f6 (Vaganian-M. Damljanovic, IT, Vrnjacka Banja, 1971).
      • If 12...a6 13.Qc2 then:
        • 13...f5 14.dxc5 bxc5 15.Rfd1 Qc8 16.b4 (Vaganian-Karpov, TT, Leningrad, ).
        • 13...Ndf6 14.dxc5 Bxc5 15.Rfd1 Qe8 16.b4 Be7 17.Be2 gives White command of more open lines and a small advantage in space (Genius-Kasparov, Rpd IT, London, 1994).

    12...Qxe7 13.dxc5

    • If 13.Bb1 Rfd8 then:
      • 14.Re1 Rac8 15.Qa4 a6 16.dxc5 Ndxc5 17.Qd1 Rc7 is equal (Romanko-Makka, Euro ChW, Plovdiv, 2008).
      • 14.Ne2 Rac8 15.Nf4 draw (Pytel-García Martínez, Op, Hastings, 1973).

    13...bxc5 14.Re1 (N)

    • If 14.Qe2 Rab8 15.Rfd1 then:
      • 15...f5 16.Bb5 Nxc3 17.Rxc3 Nf6 18.Ne1 Ne4 gives Black the initiative and a small advantage in space (S. Dukic-Petrenko, Serbian TChW, Pozarevac, 2009).
      • 15...Ndf6 16.h3 Rfd8 17.Bxe4 draw (Leko-Piket, IT A, Wijk aan Zee, 2002).

    14...f5

    • The game is equal.

    15.b4 c4 16.Bf1!?

    • The Bishop is shut in by the c-pawn on this diagonal.
    • Better is 16.Bb1 Ne5 when:
      • 17.Nd4 Qh4 18.Re2 g6 19.f4 Ng4 20.Nf3 Nxc3 is equal.
      • If 17.Nxd5 Nxf3+ 18.gxf3 Qg5+ 19.Kf1 then:
        • 19...Nxf2 20.Kxf2 Rad8 21.Ba2 Bxd5 22.Qe2 Qh5 gives Black a small advantage in space.
        • 19...Rad8 20.fxe4 fxe4 21.Bxe4 Bxd5 22.Bxd5+ Rxd5 is equal: White has an extra pawn against Black's activity, initiative and space.


    BLACK: Sophie Milliet




    WHITE: Nino Maisuradze
    Position after 16.Bd3f1


    16...Ndf6!

    • Black has a small advantage in space with a good grip on the light squares in the center.

    17.Nd4 Nxc3!?

    • Black should not initiate the exchange.
    • If 17...a5 then:
      • If 18.Nxe4 fxe4 then:
        • 19.Qd2 axb4 20.Qxb4 Qf7 21.Be2 Bc8 22.h3 Qc7 continues to give Black a small advantage in space.
        • 19.Rb1!? axb4 20.axb4 Nd7 21.Be2 Ra6 22.b5 Rg6 gives White a fair advantage in space.
      • 18.Ncb5?! (White must create a more potent threat in order to keep the a-file closed) 18...axb4! 19.axb4 Qxb4 20.Rb1 Qa5 gives Black a substantial advantage in space.

    18.Rxc3!

    • Black now has a slight advantage in space.

    18...Ne4 19.Rc2!?

    • This move could cost White a valuable tempo. If this Rook wants to back the a-pawn, then it should do so on a1 rather than a2, when ...Nc3! wins the exchange.
    • If 19.Rc1 then:
      • 19...Rf6 20.f3 Nd6 21.Qd2 a6 22.a4 Qd7 continues to give Black a slight advantage.
      • 19...a6!? 20.Qa4 Rf6 21.Qa5 Re8 22.g3 Qf7 is equal..

    19...a5!

    • Black has a small advantage in space.

    20.f3

    • 20.Qb1 axb4 21.axb4 Rf6 22.g3 Ra4 23.b5 Qc5 continues to give Black a small advantage.

    20...Nd6!?

    • White now gains a passed pawn without any compensation for Black.
    • If 20...axb4 then:
      • If 21.axb4 Ng5 22.Rc1 Rf6 then:
        • If 23.Qc2 g6 24.Qf2 then:
          • 24...Ne6 25.Qd2 Qd6 26.Nxe6 Rxe6 27.e4 fxe4 28.fxe4 Qb6+ still gives Black a small advantage.
          • 24...Rb6?! 25.b5 Qc7 26.Ra1 Rc8 27.Ra7 Re8 gives Black a slight advantage.
        • If 23.Ra1 Qxb4 24.Qb1 then:
          • 24...Qe7 25.Nxf5 Qc7 26.Rxa8+ Bxa8 27.e4 Qc5+ 28.Ne3 is equal.
          • If 24...Qxb1 then:
            • 25.Rxa8+ Bxa8 26.Rxb1 Kf7 27.Ra1 Bb7 28.Nxf5 Rb6 is equal.
            • 25.Rexb1?! Rxa1! 26.Rxa1 Ne6 27.Nb5 Kf8 28.Nc3 Nc7 gives Black a comfortable game.
      • If 21.fxe4 b3 22.Rb2 fxe4 23.Qc1 Kh8 24.Nxb3 cxb3 25.Rxb3 Bc8 26.Be2 Be6 continues to give Black a small advantage in space.
      • If 24.Bxc4 Rac8 25.Rxb3 dxc4 26.Rb2 c3 27.Rc2 Ba6 continues to geve Black a small advantage in space.

    21.b5!

    • The game is again equal.

    21...Nc8 22.e4 fxe4 23.fxe4 dxe4?

    • With more haste than wisdom, Black grabs a pawn and leaves her own pawn weak and vulnerable.
    • 23...Nb6 24.Nf3 Rae8 25.Qd4 Qc7 26.exd5 Bxd5 remains equal.


    BLACK: Sophie Milliet




    WHITE: Nino Maisuradze
    Position after 23...de4:p


    24.Bxc4+!

    • White recaptures with tempo.

    24...Kh8 25.Ne6 Nb6

    • Black's misplay on move 23 has led directly to the loss of the exchange.
    • If 25...Rf6 then White wins after 26.Qd8+ Qxd8 27.Nxd8 Nd6 28.Nxb7 Nxb7 29.Bd5.

    26.Nxf8 Qc5+ 27.Kh1 Rxf8 28.Rf1

    • If 28.Bb3 then:
      • If 28...Qf5 29.Rc7 Bd5 30.Rc5 Qf2 then:
        • 31.Rxd5 Nxd5 32.Bxd5 Qc5 33.a4 e3 34.Bf3 gives White a protected passed pawn and an extra Bishop.
        • 31.Bxd5? Qxc5 32.Bxe4 Qxb5 33.g3 Qc5 34.Qc1 Qf2 gives White a slight advantage based on the theoretical superiority of the Bishop over the Knight when there are pawns on opposite wings.
      • If 28...Qe7 then White wins after 29.Qd4 Nc8 30.b6 Rd8 31.Qc5 Qxc5 32.Rxc5.

    28...Rb8

    • If 28...e3 then Black wins easily after 29.Be2 Qxa3 30.Rc3! Qb4 31.Rxf8+ Qxf8 32.Rd3.

    29.Be2!?

    • White wins in a cakewalk after 29.Bb3! Qe7 30.Rf7 Qg5 31.Rcf2 Rg8.

    29...Qe5

    • Black isn't losing as badly as before.

    30.Rd2!?

    • Since Black can still block the d-file with 30...Bd5, White would do better to shift the attack to the c-file.
    • White wins quicker after 30.Qc1 h6 31.Rc7 Bd5 32.Qf4 Qxf4 33.Rxf4.


    BLACK: Sophie Milliet




    WHITE: Nino Maisuradze
    Position after 30.Rc2d2


    30...Bd5!

    • See previous note.

    31.Qe1

    • Stronger is 31.Qa1 when:
      • 31...Qg5 32.Rd4 Rc8 33.Qe1 e3 34.Bg4 Re8 35.Rf5.
      • If 31...Qxa1 32.Rxa1 Rc8 33.Rad1 Rc5 then:
        • White wins after 34.Kg1 34...g5 35.Kf2 Kg7 36.Ke3 Kf6 37.Kd4 marks Black's high water point; Black can make no more pregress.
        • Dallying with 34.a4?! allows Black to activate his King with 34...g5! 35.Kg1 Kg7 then:
          • 36.Ra1 Kf6 37.Bg4 Ke5 38.Rf2 e3 39.Rf5+! drives the Black King back and gives Black time to redirect resources to an effort to restrain and blockade the e-pawn.
          • If 36.Kf2? then Black wins the race to centralize her King after 36...Kf6! 37.Ke3 Ke5 38.Rb2 Nxa4 39.Rbb1 Nb6 is equal.
    31...h6 32.Qg3 Qxg3 33.hxg3 Rc8

    • 33...Bc4 34.Re1 Bxe2 35.Rexe2 Nc4 36.Rd5 Nxa3 37.Ra2 gives White the initiative; Black has only a pawn for the exchange.

    34.Rfd1 Rc5 35.Kg1 Kh7 36.Kf2

    • 36.g4 g6 37.Kf2 Kg7 38.Rh1 Rc8 39.Ke3 gives White the material advantage and the active King.

    36...Kg6 37.g4 Kf6

    BLACK: Sophie Milliet




    WHITE: Nino Maisuradze
    Position after 37...Kg6f6


    38.Rd4?

    • White throws away her strong advantage by bringing the Rook to a unnavigable rank.
    • If 38.Rh1 then:
      • 38...Ke6 39.Rh5 Rc3 40.Ke1 Bb3 41.g5 continues to leave White up by the exchange.
      • 38...Ke5 39.Rh5+ Ke6 40.Rd4 Rc2 41.Ke1 Rc1+ 42.Rd1 continues to leaves White with the exchange.

    38...Ke5!

    • White still has a small advantage in space.

    39.g3?!

    • The pawn should be held back as reserve pawn tempi is becoming critical for both sides.
    • Better is 39.R4d2 Rc3 40.Rb2 Rxa3 41.Rc2 a4 42.Rc7 when White still has a small advantage in space.

    39...Rc3!

    • Black now has a comfortable game. White cannot penetrate to Black's side of the board with her Rooks.

    40.Kg2?

    • White reaches the time check only to find herself in a lost position.
    • 40.a4 Bb3 41.Rd8 Bxd1 42.Bxd1 Nd5 43.Ra8 Kd4 gives Black the active King and better centralization, but White will soon have two conncted passers.


    BLACK: Sophie Milliet




    WHITE: Nino Maisuradze
    Position after 40.Kf2g2


    40...Rxa3!

    • Black has a pawn and greater piece activity for the exchange.

    41.Kh3

    • If 41.g5 hxg5 then:
      • 42.Kh3 a4 43.R4d2 Rc3 44.Bg4 g6 45.Ra1 a3 gives Black two passed pawns for the exchange.
      • If 42.Kf2 Rb3 43.Bf1 a4 then:
        • If 44.Ke1 a3 45.R4d2 Rxg3 46.Rc2 then:
          • If 46...g4 47.Rc7 a2 48.Ra7 Kf4 then:
            • If 49.Rd2 then Black wins after 49...Rb3 50.Rf2+ Ke5 51.Rfxa2 Rb1+.
            • If 49.Rxd5 then Black wins after 49...Nxd5 50.Rxa2 Rb3 51.Ra7 Rb1+ 52.Ke2 Rxb5.
          • 46...a2 47.Ra1 g4 48.Ke2 Rf3 49.Ke1 g3 crushes White under the advance of passed pawns.
        • If 44.g4 a3 45.Ke1 a2 46.Rxd5+ Nxd5 then:
          • If 47.Bc4 then Black wins after Re3+ 48.Kf2 Rf3+ 49.Ke1 Nc3 50.Rc1 Kd4
          • 47.b6 loses right away to 47...Rb1 48.b7 Rxd1+ 49.Kxd1 a1Q+.

    41...Rc3 42.R4d2 a4!

    • White cannot do anything to stop the a-pawn from advancing to a3.

    43.Bf1 a3 44.Ra1

    BLACK: Sophie Milliet




    WHITE: Nino Maisuradze
    Position after 44.Rd1a1


    44...e3!

    • A second passed pawn manifests its lust to expand.

    45.Rd3 Rxd3 46.Bxd3 a2! 47.g5 Kd4

    • If 47...hxg5 then Black wins after 48.Kg4 Kd4 49.Be2 Kc3 50.Kxg5 Kb2.

    48.gxh6 gxh6 49.Bb1

    • Whites best chance of salvaging the game appears to be to descend into an endgame featuring a Bishop and Knight against a lone King.
    • If 49.Be2 then Black wins after 49...Kc3 50.Kg4 Kd2 51.Bf1 e2 52.Bxe2 Kxe2.


    BLACK: Sophie Milliet




    WHITE: Nino Maisuradze
    Position after 49.Bd3b1


    49...axb1Q!

    • White at least has the satisfaction of having forced Black to part with her most advanced passer.

    50.Rxb1 e2 51.g4

    • 51.Kh4 Ke3 52.Kh5 Kf2 53.Kxh6 Kxg3 leads to the Bishop and Knight ending.

    51...Ke3 52.Kg3 Be4

    • 52...Bc4 shows better technique by overprotecting the e-pawn, but it amounts to pretty much the same thing after 53.Kg2 Bd3 54.Ra1 Nd5 55.b6 Nxb6.

    53.Ra1 Nd5 54.g5

    • No better is 54.Kh4 Nc3 55.Re1 Kf2 56.Rxe2+ Kxe2 57.Kh5 Kf3.

    54...hxg5 55.Kg4 Nc3 56.Re1

    • The text is forced.
    • 56.b6 loses immediately to 56...Nb1!.

    56...Nxb5 57.Kxg5

    • White has nothing better than to decend into a lone King vs. King, Bishop and Knight ending and hope Mlle. Milliet doesn't know how to convert it.

    57...Nd4 58.Rxe2+ Nxe2

    BLACK: Sophie Milliet




    WHITE:Nino Maisuradze
    Position after 58...Nd4e2:R


    59.Kg4

    • And away we go.

    59...Nd4 60.Kg5 Bf5 61.Kf6 Ke4 62.Ke7 Ke5 63.Kf7

    • Most international masters and grandmasters know how to mate a lone King with a Knight and Bishop. The general formula is to get the King into a corner where it can be checked by the Bishop. If the mate is completely forced, then on the next to last move, Black gives check with one minor piece and then on the next move gives mate with the other. If the mate is forced, the participating Bishop will always be on the long diagonal. If the White King is not in the corner (a8) when mate is given, then it is on the edge of the board in either square adjascent to the corneer (a7 or b8). If the King is not on one of those saquares when mated, then it is because the player chose to make a harikari move. The mated King will always be at the edge of the board when mated.
    • Mate takes the following general pattens:


    Analysis Diagram

    BLACK




    WHITE
    Pattern 1


    • A variation of the first pattern is how this game would have ending had White chosen to play to mate. In that case, the White King would have been on a7, the Black King on c7.


    Analysis Diagram

    BLACK




    WHITE
    Pattern 2


    • In pattern 2, the Bishop can be anywhere on the long diagonal. The Knight may be on c8 and if it is, then the Black King is at c7.


    Analysis Diagram

    BLACK




    WHITE
    Pattern 3


    • Pattern 3 is a spcecial case of pattern 2. The Bishop gives mate on the long diagonal on the seventh rank (b7). It moved from either c8 or a6. The Knight may be at c8 as long as the Black King is at c7 or at a6 if and only if the King is at b6.

    63...Nc6

    • 63...Ne6 64.Kg8 Kf6 65.Kh8 Nd8 66.Kg8 Nf7 transposes into the text at Black's 69th move.

    64.Kg7 Be4 65.Kf7 Kf5 66.Kg7

    • In the note that follow, the font color="red"]main variation and the maroon variation beginning with 72...Bg4 are perhaps the purest forms of the Bishop and Knight mate against a lone King. They should be memorized and studied until they are thoroughly understood.
    • If 66.Ke8 Bd5 67.Kd7 Ke5 68.Ke8 Be6 69.Kf8 Kf6 70.Ke8 Ne5 71.Kf8 Ng6+ 72.Ke8 then:
      • If 72...Ke5 73.Kd8 Kd6 74.Ke8 Bd5 75.Kd8 then:
        • If 75...Bc6 76.Kc8 Nf8 then:
          • If 77.Kd8 Ne6+ 78.Kc8 Kc5 79.Kb8 Kb6 80.Kc8 Bb5 81.Kb8 then:
            • If 81...Ba6 then 82.Ka8 Nd8 83.Kb8 Nc6+ 84.Ka8 Bb7#.
            • 81...Bd7 transposes into the maroon line beginning with 72...Bg4.
          • If 77.Kb8 Nd7+ 78.Ka7 Nc5 then:
            • If 79.Kb6 Nb7 80.Ka7 Kc7 81.Ka6 Bd7 82.Ka7 then:
              • 82...Nc5 83.Ka8 Kb6 84.Kb8 Na6+ 85.Ka8 Bc6#.
              • 82...Bb5 83.Ka8 Nd6 84.Ka7 transposes into the pink line at White's 86th move, below lines suborinate to the maroon notes beginning with 72...g4..
            • If 79.Kb8 Bd7 80.Ka8 Kc6 then:
              • If 81.Kb8 then 81...Kb6 82.Ka8 Be6 83.Kb8 Na6+ 84.Ka8 Bd5#.
              • If 81.Ka7 then 81...Kc7 82.Ka8 Kb6 83.Kb8 Na6+ 84.Ka8 Bc6#.
        • 75...Ne5 76.Ke8 Nd7 77.Kd8 Bf7 transposes into the maroon line immediately below at Black's 79th move.
      • If 72...Bg4 73.Kd8 Ke5 74.Kc7 Kd5 then:
        • If 75.Kd8 Kd6 76.Ke8 Be6 77.Kd8 (note that when the Knight is on the fourth rank it has the effect of confining the White King to the back rank) 77...Ne5 78.Ke8 Nd7! forcing the White King to move queenside.79.Kd8 Bf7 (the King still must move queenside) 80.Kc8 Nc5 81.Kb8 Be6 82.Ka8 Kc7 83.Ka7 Bd7 84.Ka8 Kb6 85.Kb8 Na6+ 86.Ka8 Bc6#.
        • If 75.Kb6 Bd7 76.Kc7 Bc6 then:
          • If 77.Kb6 Kd6 78.Ka6 Ne5 79.Ka5 Kc5 80.Ka6 Nf7 81.Ka5 Nd6 82.Ka6 Bb5+ 83.Ka7 Kc6 then:
            • 84.Kb8 Kb6 85.Ka8 Kc7 86.Ka7 Nc8+ 87.Ka8 Bc6#.
            • 84.Ka8 Kc7 transposes into the pink line at Black's 85th move, immediately above..
          • If 77.Kb8 Kd6 78.Kc8 Nf8 then:
            • 79.Kb8 Kc5 80.Kc8 Ne6 81.Kb8 Kb6 82.Kc8 Bb5 83.Kb8 Bd7 84.Ka8 Nc5 transposes to the maroon line, immediately above.
            • 79.Kd8 Ne6+ 80.Kc8 Kc5 81.Kb8 Kb6 82.Kc8 Bb5 83.Kb8 transposes to the maroon line, immediately above.



    BLACK: Sophie Milliet




    WHITE: Nino Maisuradze
    Position after 66.Kf7g7


    66...Ne5 67.Kg8 Kf6 68.Kh8 Nf7+

    • The Knight will make a "W" manuever (Nf7-e5-d7-c5). As hinted at in the notes to White's 66th move, the Knight moves to the fourth rank (rank number 5) to confine the White King to the back rank and then to the second rank (rank number 7) to prevent the King from returning to the "wrong" corner, i.e., the one where the King will not be checked by the Bishop.
    • 68...Bg6 69.Kg8 Nf7 70.Kf8 Bh7 transposes to the text at Black's 70th move.

    69.Kg8 Bf5 70.Kf8 Bh7 71.Ke8 Ne5!

    • This is really the only good move here. Black's progress is measure on forcing the White King toward a8. White may go back to f8 on the next move, but she must not be forced to so.

    72.Kd8

    • If 72.Kf8 then 72...Nd7+! 73.Ke8 Ke6 74.Kd8 keeps the situation on the right track for Black.

    72...Ke6 73.Kc7 Nd7 74.Kc6

    • If 74.Kb7 Kd6 75.Ka6 Kc5 76.Kb7 Be4+ 77.Kc7 then:
      • If 77...Bf5 78.Kb7 Ne5 79.Kc7 Nf7 then:
        • If 80.Kb7 Be4+ 81.Ka7 Kb5 82.Kb8 Kb6 83.Kc8 then:
          • 83...Bf5+ 84.Kb8 Nd6 85.Ka8 Nb5 86.Kb8 Bd7 87.Ka8 Nc7+ 88.Kb8 Na6+ 89.Ka8 Bc6#.
          • 83...Bd3!? doesn't really help White, but it forces Black to re-do some of her hard work after:
            • 84.Kd7 Kc5 85.Ke6 Nd6 86.Ke5 Bf5.
            • If 84.Kb8 Nd6 85.Ka8 then:
              • If 85...Kc7 86.Ka7 Nc8+ 87.Ka8 Be4#.
              • If a) 85...Nb5 86.Kb8 Bf5 87.Ka8 then:
                • If 87...Nc7+ then 88.Kb8 Na6+ 89.Ka8 Be4#.
                • If 87...Na7 then 88.Kb8 Bc8 89.Ka8 Bb7+ 90.Kb8 Nc6#.
              • If b) 85...Bf5 then 86.Kb8 Nb5 87.Ka8 Nc7+ 88.Kb8 Na6+ 89.Ka8 Be4#.
        • If 80.Kb8 then 80...Kb6 81.Ka8 Nd6 82.Kb8 Nb5 83.Ka8 Nc7+ 84.Kb8 Na6+ 85.Ka8 Be4#.
      • 77...Bc6 78.Kd8 Kd6 79.Ke8 Bd5 tranposes into the burgundy line (75...Ne5 76.Ke8 Nd7) in the maroon line beginning with 72...Bg4 in the notes to White's 66th move.


    BLACK: Sophie Milliet




    WHITE: Nino Maisuradze
    Position after 74.Kc7c6


    74...Bd3!

    • The most important things are to confine the White King to an ever shrinking piece of real estate and keep it headed in the general direction of a8.

    75.Kc7 Bb5

    • If 75...Be4 then:
      • If 76.Kc8 Kd6 77.Kd8 Bg6 78.Kc8 Nc5 79.Kd8 Nb7+ 80.Kc8 Kc6 81.Kb8 Kb6 then:
        • If 82.Kc8 Bf5+ 83.Kb8 Nc5 84.Ka8 then:
          • 84...Bd7 85.Kb8 Na6+ 86.Ka8 Bc6#.
          • 84...Bc8 85.Kb8 Ba6 transposes into the main line notes for White's 74th move at Black's 88th move.
        • If 82.Ka8 Nd6 83.Kb8 then:
          • 83...Bd3 84.Ka8 Kc7 transposes into the pink line of the moves to White's 74th move at Black's 85th move.
          • 83...Bf5 84.Ka8 transposes into the main line to White's 74th move at White's 85th move.
      • If 76.Kd8 Kd6 77.Ke8 Bg6+ 78.Kd8 Nc5 79.Kc8 Bf5+ 80.Kd8 Ne6+ then:
        • If 81.Kc8 then 81...Kc6 82.Kb8 Nc5 83.Ka7 Kc7 84.Ka8 Kb6 85.Kb8 Na6+ 86.Ka8 Be4#.If 81.Ke8 then 81...Bg6#

    76.Kd8 Nf6 77.Kc8 Ke7 78.Kb7

    • If 78.Kc7 Nd5+ 79.Kb8 Ba6 80.Ka7 Bc8 then:
      • If 81.Ka8 Kd6 82.Kb8 Ne7 then:
        • If 83.Ka8 then 83...Kc7 84.Ka7 Nc6+ 85.Ka8 Bb7#.
        • 83.Ka7 Kc7 84.Ka8 Bb7+ is the text postion at move 84.
      • 81.Kb8 Kd7 82.Ka8 Kc7 83.Ka7 Nb4 84.Ka8 is the text postion at move 84.

    78...Nd5 79.Kc8 Ba6+ 80.Kb8 Kd7 81.Ka7

    • 81.Ka8 Kc7 82.Ka7 Nb4 83.Ka8 is the text position at move 84.

    81...Bc8 82.Kb8

    • 82.Ka8 Kc7 83.Ka7 Nb4 84.Ka8 is the text position at move 84.

    82...Nb4 83.Ka7 Kc7 84.Ka8 Bb7+ 0-1

    • If 85.Ka7 then 85...Nc6#
    • Mlle. Maisuradze resigns.


    Analysis Diagram

    BLACK: Sophie Milliet




    WHITE: Nino Maisuradze
    Position after 85...Nc6#


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    Response to Jack Rabbit (Reply #1)

    Tue Sep 4, 2012, 03:17 AM

    11. Politiken Cup, Helsignør



    Kronborg Castle, Helsignør (Elsinore), Denmark
    Scene of Shakespeare's Hamlet
    Photo by Fiskfisk in Wikimedia Commons (http://en.wikipedia.org/wiki/File:Helsingoer_Kronborg_Castle.jpg)
    (Public Domain)

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    Response to Jack Rabbit (Reply #11)

    Tue Sep 4, 2012, 03:21 AM

    13. Bulski - Cheparinov, Round 9



    Ivan Cheparinov
    Photo by karpidis modified from flickr (http://www.flickr.com/photos/8022405@N02/1892150984/) in Wikimedia Commons (http://commons.wikimedia.org/wiki/Category:Ivan_Cheparinov)
    (Creative Commons License, Attribution/Share Alike)


    Krzysztof Bulski - Ivan Cheparinov
    Politiken Cup, Round 9
    Helsingør, 4 August 2012

    West India Game: King's Indian Defense (Catalan Opening)


    1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 0-0 5.Nc3 d6 6.Nf3 Nc6 7.0-0 a6 8.b3 Rb8 9.Nd5

    • For moves and variations up to here, see Maiorov-B. Socko, Euro Ch, Rijeka, 2010.

    9...Nxd5

    • If 9...e6 10.Nxf6+ Qxf6 then:
      • If 11.Bg5 Qf5 then:
        • If 12.Qd2 Nxd4 13.Nxd4 Bxd4 14.Qxd4 Qxg5 15.Qa7 Bd7 16.Bxb7 a5 then:
          • If 17.Rfd1 Rfd8 then:
            • 18.Bg2 Qc5 19.Qxc5 dxc5 20.Rd3 Kf8 21.Re3 f6 22.f4 yields the edge in space to White (Mamedyarov-McShane, Young Masters, Lausanne, 2003).
            • If 18.Bf3 then:
              • 18...Qc5 19.Qxc5 dxc5 20.Rd3 gives White a significant advatange in space (Bu Xiangzhi-Bologan, Op, Gibraltar, 2008).
              • 18...Rbc8 then after 19.Rac1 a4 20.b4 e5 21.b5 Bg4 22.Rc3 White holds his position and his edge in space.
          • 17.Rad1 Rfd8 18.Rd3 Kf8 19.Rfd1 Ke7 20.Bc6 Rb6 21.Bb5 Qc5 gives White the advantage in apce on the queenside (Ruck-Fedorov. Eur Club Cup, Fügen (Austria), 2006).
        • If 12.Be3 e5 13.Qd2 Qh5 then:
          • If 14.d5 Ne7 15.Ng5 h6 16.Ne4 then:
            • 16...f5 17.Bf3 Qh3 18.Bg2 draw (A. Graf-McShane, Euro Ch, Istanbul, 2003).
            • 16...b6?! 17.h4! Kh7 18.Rad1 gives White a camfortable game (Timman-Fedorov, FIDE Knock Out, Las Vegas, 1999).
          • 14.Rfe1 Bh3 15.Rad1 Rbd8 16.Qc1 Bxg2 17.Kxg2 e4 is equal (Grigoriants-Amonatov, Aeroflot Op, Moscow, 2008).
      • 11.Bb2 e5 12.dxe5 d5 13.c5 Qe7 14.Rc1 f5 15.Qc2 Rd8 gives White the edge in space, but Black's center is well defended (Adorjan-Bouaziz, Szirak, 1987).
    • If 9...Nh5 10.Bb2 e6 then:
      • If 11.Nc3 b5 then:
        • If 12.d5 Ne7 13.dxe6 then:
          • If 13...fxe6 14.c5 then:
            • If 14...dxc5 15.Qc2 then:
              • If 15...Nc6 16.Rad1 Nd4 17.Nxd4 cxd4 then:
                • If 18.Ne4 e5 19.e3 Bf5 20.Qc5 Rf7 then:
                  • If 21.exd4 exd4 22.Rxd4 Qe7 then:
                    • 23.Ba1?! Qxc5 24.Nxc5 Bxd4 25.Bxd4 Rd8 gives Black the edge in space to go with being an exchange to the good (Sargissian-Nijboer, Ol, Bled, 2002).
                    • 23.Qd5 Re8 24.Rc1 Nf6 25.Nxf6+ Bxf6 26.h4 gives Black a small advantage in space.
                  • 21.Rd2 Qe7 22.exd4 Bxe4 23.Bxe4 exd4 24.Qc6 Rf6 is equal (Anastasian-Jenni, Ol, Istanbul, 2000).
                • If 18.e3 e5 19.exd4 then:
                  • 19...exd4!? 20.Nd5 Bg4 21.Rd2 d3 22.Qxd3 Bxb2 23.Rxb2 gives White better activity for his minor pieces (K. Georgiev-Antic, Yugoslave ChT, Herceg Novi, 2001).
                  • 19...Bf5 20.Qc1 exd4 21.Nd5 d3 22.Bxg7 Nxg7 23.Rfe1 continues to give White a small advantage.
              • If 15...Bb7 16.Nd1 Qd6 17.Bxg7 Nxg7 18.Rc1 then:
                • 18...Nef5?! 19.Qxc5! Bxf3 20.Bxf3 Rbc8 21.Ne3 gives White a fair advantage in space (Karpov-Shirov, Amber Rapid, Monte Carlo, 1999).
                • 18...e5 19.Qxc5 Bxf3 20.Qxd6 cxd6 21.Bxf3 remains equal.
            • 14...Bb7 15.cxd6 cxd6 is equal (Grabarczyk-B. Socko, Polish Ch, Polanica Zdroj, 1999).
          • If 13...Bxe6 14.cxb5 axb5 15.Qd2 then:
            • 15...b4 16.Nd1 Nf6 17.Ng5 Bc8 18.Ne4 Nxe4 19.Bxe4 gives White slight more activity for her minor pieces (Houska-A. Hunt, British Ch, Canterbury, 2010).
            • 15...Nf6 16.Ng5 Bf5 17.Rfd1 b4 18.Nce4 gives White a slight advantage in space (Ivanchuk-Radjabov, Grand Prix, Dubai, 2002).
        • If 12.cxb5 axb5 13.Rc1 b4 then:
          • 14.Na4 Na5 15.Qc2 Ba6 16.Rfe1 c6 17.e4 gives White a better center and Black a slight advantage in space Romanishin-Nijboer, IT, Essen, 2001).
          • If 14.Nb1 Na7 15.Ne1 then:
            • 15...c5 16.Qd2 Bxd4 17.Bxd4 cxd4 18.Qxd4 is equal (Szabolcsi-Resika, Spring Op, Budapest, 2001).
            • 15...Nb5 16.Qd2 Bb7 17.Rc4 Bxg2 18.Nxg2 is equal (Roamnishin-I. Smirin, IT, Ischia, 1996).
      • If 11.Ne3 then:
        • If 11...f5 12.Qd2 Ne7 13.Rac1 Bh6 then:
          • 14.Ne1 g5 15.Nd1 Rf6 16.e3 g4 17.Nd3 gives White more freedom (Grachev-G. Szabo, Euro Ch, Plovdiv, 2008).
          • 14.Rc2 Nf6 15.Qd3 g5 16.c5 g4 17.Nd2 gives White a small advantage in space (Grigoryan-Fier, Op, Varna, 2012).
        • If 11...Ne7 12.Qd2 b6 then:
          • 13.Ne1 f5 14.f4 h6 15.Nd1 Nf6 16.Nf2 Bb7 is equal (Grachev-Krylov, Moscow Op, 2007).
          • 13.Rac1 Bb7 14.Rfd1 h6 15.c5 Nf6 16.cxb6 cxb6 17.Ba3 gives White a slight advantage in space (Rausis-Bologan, IT, Enghien-les-Bains, 1999).

    10.cxd5 Nb4 11.e4 f5 12.Ng5 c5

    • If 12...fxe4! 13.Bxe4 then:
      • If 13...c6? then White wins after 14.Nxh7! Kxh7 15.Qh5+ Kg8 16.Bxg6 White wins (Romanishin-Kantsler, IT, Tbilisi, 1986).
      • 13...Bf5 14.Qe1 a5 15.a3 Nc2 16.Bxc2 Bxc2 17.Qe6+ continues to give White a comfortable game.

    13.dxc6 Nxc6 14.exf5 Bxf5 (N)

    • 14...Rxf5 15.g4 Rf6 16.Be3 d5 17.h3 h6 18.Nf3 gives White a fair advantage in space (Rustemov-Loginov, Russian Ch, Elista, 2001).


    BLACK: Ivan Cheparinov




    WHITE: Krzysztof Bulski
    Position after 14...Bc8f5:p


    15.Be3

    • The game is equal..

    15...d5 16.g4

    • If 16.Rc1 h6 then:
      • 17.Nh3 e5 18.g4 Bc8 19.Rc5 Qh4 20.dxe5 remains equal.
      • 17.Nf3 g5 18.Qe2 Qd6 19.Rfd1 e6 remains equal.

    16...Bc8 17.h3 Qd6 18.Qd2 h6!?

    • 18...e6 (giving Black a bind on f5 in particular and a good command of the light squares overall) 19.Rac1 a5 20.f4 Ra8 21.Nf3 a4 22.Ne5 remains equal.

    19.Nf3!

    • White has a slim advantage in space.

    19...h5

    • If 19...g5 20.Rad1 Be6 21.Ne5 then:
      • 21...Nxe5 22.dxe5 Bxe5 23.Bxd5 Rfd8 24.Be4 Qxd2 25.Rxd2 Rxd2 26.Bxd2 continues to give White a slim edge with stronger pawns.
      • 21...Qb4?! 22.Nxc6 bxc6 23.Qc2 Qd6 24.Qc1 a5 25.f4 gives White a small-to-fair advantage with the critical point at f4; Black should not play 25...gxf4 as White would plant a piece on the square.

    20.gxh5 Bxh3!?

    • Black wins a pawn, but White gains in space.
    • If 20...gxh5 21.Ng5 Rf5 22.h4 Rf6 23.Rac1 Bg4 24.a4 is equal.


    BLACK: Ivan Cheparinov




    WHITE: Krzysztof Bulski
    Position after 20...Bc8h3:p


    21.Bxh3!

    • White has a small advantage in space.

    21...Rxf3 22.Bg2!?

    • 22.Kg2 Rxh3 23.Kxh3 Qe6+ 24.Kh2 Rf8 25.f3 gives White a small advantage in space.
    • If 22.Bg4!? Rf7 23.h6 then:
      • 23...Bf6! 24.Rac1 Rd8 25.b4 Bh4 26.Rb1 e5 27.b5 is equal.
      • 23...Bh8!? 24.Rac1 e5 25.dxe5 Nxe5 26.Be2 Qe6 27.Kg2 gives White a small advantage in space.

    22...Rf5!

    • Black has a slight advantage in space.

    23.h6 Bh8 24.Rad1 Rbf8 25.f4!?

    • White cuts the file from under Black's Rooks, but the h-pawn is doomed.
    • If 25.Bh3 then:
      • 25...Rh5 26.Kg2 Kh7 27.Rh1 Rh4 28.f4 Bf6 continues to give Black a small advantage since the h-pawn is deadwood.
      • 25...Rf4 26.Bxf4 Rxf4 27.Kg2 Bxd4 28.Be6+ Kh7 gives Black an extra pawn and more space; the White Bishop is protected by the threat to Black's Rook.

    25...Kh7!

    • Black takes a fair advantage in space.
    • 25...Rh5!? 26.Bf3! Rxh6 27.Qg2 Rf5 28.Bg4 Rf7 gives Black a small advantage in space.

    26.Rf3 e6?!

    • A better try is to pre-empt a White display of force in in the h-file, where Black has his King and White a passed pawn.
    • If 26...Rh5 27.Rh3 Rxh6 28.Rxh6+ Kxh6 continues to gives Black a fair advantage.


    BLACK: Ivan Cheparinov




    WHITE: Krzysztof Bulski
    Position after 26...e7e6


    27.Bh3

    • Black again has just a small advantage in space.

    27...Rh5 28.Qg2?!

    • Black's pawn at g6 is far too easily protected for White to make a target of it.
    • If 28.Kg2 Ne7 29.Rh1 Nf5 30.Bxf5 Rfxf5 31.Rfh3 Qe7 continues to give Black a small advantage in space.

    28...Ne7!

    • With that, the pawn is safe.
    • 28...Rxh6 29.f5 exf5 30.Bxh6 Kxh6 31.Bxf5 Bxd4+ 32.Kh1 is equal.

    29.Bg4

    • If 29.Qe2 Bf6 then:
      • 30.Rc1 Rh8 31.Kg2 Nf5 32.Bxf5 exf5 33.Qc2 Qe6 Black will soon take the h-pawn; White has some counterplay in the c-file.
      • 30.Bg4 Rh4 31.Rh3 Rxh3 32.Bxh3 Nf5 33.Qd2 Kxh6 gives Black an extra pawn and more freedom.

    29...Rh4 30.Rh3?

    • White now falls into a hopeless position.
    • If 30.Bf2 Rxh6 31.Rh3 Bg7 then:
      • 32.Bh4 Nf5 33.Bxf5 exf5 34.Bg5 Rxh3 35.Qxh3+ Kg8 gives Black an extra pawn; White has a little more space.
      • 32.Rdd3 Nf5 33.Bxf5 Rxf5 34.Rdf3 Qb4 35.Rxh6+ Bxh6 gives Black an extra pawn, more activity and more space; White may be able to free a piece for counterplay.


    BLACK: Ivan Cheparinov




    WHITE: Krzysztof Bulski
    Position after 30.Rf3h3


    30...Rxh3!

    • Black wins in all variations.

    31.Qxh3

    • If 31.Bxh3 Nf5 32.Bxf5 exf5 then:
      • If 33.Rc1 Re8 34.Qd2 Kxh6 then:
        • 35.Kg2 Bf6 36.Qc3 a5 37.a4 Bd8 38.Kf2 Qe7 gives Black an extra pawn and command of attacking lanes.
        • If 35.Qh2+ Kg7 36.Qe2 Kg8 37.Qd3 Bg7 then:
          • 38.Kg2 Bh6 39.Qd2 Re4 40.Kf3 Bf8 41.Rg1 Qe6 gives Black an extra pawn and power up the center.
          • If 38.Kf2 then Black wins after 38...Qe7 39.Rh1 Rc8 40.Ke2 Kf7 41.Rh2 b5 ().
      • If 33.Qe2 Kxh6 then:
        • If 34.Qh2+ Kg7 35.Qd2 Kf7 then:
          • 36.Rc1 Re8 37.Qc3 Re7 38.Kg2 Bf6 39.Qd3 Re4 gives Black an extra pawn, more freedom and pressure in the center.
          • If 36.Bf2 Re8 37.Kg2 Re4 then:
            • 38.Rh1 then Black wins after 38...Bf6 39.Rh7+ Bg7 40.Kf3 Qe6 41.a4 Kg8.
            • If 38.Bg3 then Black wins after 38...Rxd4 39.Qc2 Rxd1 40.Qxd1 Qe6 41.Kg1 Qe3+.
        • If 34.Qc2 Re8 35.Rd3 Bf6 then:
          • 36.Qc1 Bh4 37.Bd2 Kg7 38.Qc5 Qd7 39.Qc3 Bf6 leaves Black a pawn up with command of critical attacking lanes; the White Queen at c3 doesn't promise any fruitful counterpaly.
          • If 36.Qf2 b5 37.Qd2 b4 38.Kg2 Kg7 39.Bg1 a5 leaves Black a pawn to the good with command of attacking lanes.

    31...Nf5 32.Bxf5

    • If 32.Bd2 Qb6 then:
      • If 33.Bxf5 Bxd4+ 34.Kf1 Rxf5 then:
        • If 35.Kg2 e5 then:
          • If 36.Re1 e4 37.a3 Rh5 then:
            • 38.Qc8 Kxh6 39.f5+ Kh7 40.Qe6 Qxe6 41.fxe6 Kg7 leaves Black two pawns to the good.
            • If 38.Qd7+ then Black wins after 38...Kxh6 39.Qe7 Qf6 40.f5+ g5 41.Qd7 Be5.
          • If 36.Qg4 then Black wins after 36...exf4 37.Bxf4 Be3 38.Re1 Bxf4 39.Re7+ Kg8.
        • 35.Ke2 e5 36.Rf1 e4 37.Rc1 a5 leaves Black a pawn to the good with much more active pieces.
      • If 33.Kh1 Qxd4 then:
        • 34.Bxf5 Rxf5 35.Qf3 Be5 36.Bc1 Qb4 37.Bd2 Qf8 wins the f-pawn.
        • 34.Rc1 Rf7 35.Qh2 Ne3 36.Bxe3 Qe4+ 37.Qg2 Qxe3 leaves White two pawns to the good once the deadwood f-pawn falls.

    32...exf5 33.Qf1

    • If 33.Kf1 then Black wins after 33...Re8! 34.Rd3 Bf6 35.Qh2 Qe7 36.Qg3 Qe4 ().

    33...Re8 34.Qd3

    • If 34.Qh3 Qe7 35.Kf2 Rc8 then:
      • 36.Rd2 Rc3 37.Qg3 Qe6 38.Ke2 Qe4 39.Qf3 Kxh6 gives Black an extra pawn and more freedom.
      • 36.Re1 Bf6 37.Rc1 Bh4+ 38.Kg1 Rxc1+ 39.Bxc1 Qe1+ leaves Black with an extra pawn in minor piece ending.


    BLACK: Ivan Cheparinov




    WHITE: Krzysztof Bulski
    Position after 34.Qf1d3


    34...Re4

    • The pressure in the center leaves White with no satisfactory moves.

    35.Rc1

    • If 35.Qc3 then Black wins after 35...Qe7 36.Rd3 Qh4 37.Bf2 Qxf4
    • If 35.Bd2 then Black wins after 35...Bxd4+ 36.Kf1 g5 37.Re1 g4 38.Kg2 Kxh6.

    35...Qe7 36.Rc3 Rxe3 0-1

    • If 37.Qxe3 then Black wins after 37...Qxe3+ 38.Rxe3 Bxd4 39.Kf2 Kxh6.
    • Bulski resigns.

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    Response to Jack Rabbit (Reply #11)

    Sun Sep 16, 2012, 05:16 PM

    25. Ochsner - I. Sokolov, Round 3

    Ivan Sokolov, a Dutch grandmaster by way of Bosnia, won more games in Helsingør than any other competitor. As we have mentioned before, he perhaps the world's foremost expert on the theory of Black's side of the Spanish Grand Royal Game.

    In this early-round game, Mh. Sokolov takes risks trying to confound against a lower rated opponent, gets in trouble and nearly loses. But in the end, because he knows his way around the pawn skeleton resulting from this opening, he bouces back when finally presented the opportunity and emerges victorious.



    Ivan Sokolov
    Photo by Falcongj in Wikimedia Commons (http://en.wikipedia.org/wiki/File:Ivan_Sokolov.jpg)
    (Public Domain)


    http://www.chessgames.com/perl/chessgame?gid=1674002
    Bjørn Møller Ochsner - Ivan Sokolov
    Politiken Cup, Round 3
    Helsingør, 29 July 2012

    Grand Spanish Royal Game: Arkhangelsk Defense


    1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 b5 6.Bb3 Bb7 7.d3 Be7


    8.Re1

    • If 8.Nc3 0-0 9.Bd2 d6 then:
      • If 10.a4 then:
        • If 10...Na5 11.Ba2 b4 then:
          • If 12.Nd5 Nxd5 13.exd5 c5 14.c3 then:
            • If 14...bxc3 15.Bxc3 Bc8 then:
              • 16.Qe1 Nb7 17.a5 Bg4 18.Nd2 Nxa5 19.f4 exf4 20.Rxf4 Bh5 gives Black an extra pawn (Kuzmin-Malaniuk, Ukrainian Ch, Kharkov, 2004).
              • 16.b4 cxb4 17.Bxb4 Bg4 18.h3 Bh5 19.Re1 Rb8 is equal (Watson-Chiburdanidze, IT, Frunze, 1985).
            • 14...b3 15.Bxb3 Nxb3 16.Qxb3 Rb8 17.Rab1 Qd7 18.Rfe1 gives White an extra pawn and more space (A. Zhigalko-van der Wiel, Op, Groningen, 2005).
          • If 12.Ne2 then:
            • 12...d5 13.exd5 Bxd5 14.Bxd5 Qxd5 15.Ng3 Rfe8 is equal (Tukmakov-Planinc, IT, Madrif, 1973).
            • 12...c5 13.Ng3 Rb8 14.Nf5 Bc8 15.N3h4 Be6 is equal (Topalov-Beliavsky, EU ChT, Batumi, 1999).
        • If 10...Nd4 11.Nxd4 exd4 then:
          • If 12.Ne2 c5 13.Ng3 d5 then:
            • 14.e5 Nd7 15.Re1 Re8 16.Qf3 Nf8 17.Nf5 Ne6 18.c3 dxc3 19.bxc3 Bf8 20.Qg4 gives White some initiative (Gallagher-Lenic, Euro Ch, Rijeka, 2010).
            • 14.axb5 axb5 15.Rxa8 Bxa8 16.e5 gives White the initiative and more space (Matulovic-Malich, IT, Sarajevo, 1965).
          • 12.Nd5 Bxd5 13.Bxd5 Nxd5 14.exd5 Qd7 15.Re1 Bf6 is equal (Navara-Mikhalchishin, Euro ChT, León, 2001).
      • 10.Nd5! Nxd5 11.Bxd5 Rb8 12.c3 Bf6 13.a4 Ne7 continues to give White the advantage in space (Khairullin-Khalifman, Aeroflot Op, Moscow, 2006).

    8...d6 9.a3 Nb8 (N)

    • If 9...0-0 10.Nc3 then:
      • If 10...Nd4 11.Nxd4 exd4 12.Ne2 c5 13.Ng3 then:
        • If 13...g6 14.Bh6 Re8 15.Qf3 then:
          • If 15...Rc8 then:
            • 16.Bg5 Kg7 17.Qf4 d5 18.Bh6+ gives White a comfortable game (Kovacevic-Vujosevic, Yugoslav ChT, Vrnjacka Banja, 1998).
            • 16.c3 dxc3 17.bxc3 c4 18.dxc4 bxc4 19.Ba4 gives White a small advantage in space (Van Oosterman-Bücker, Corres, 2007).
          • If 15...Bf8 16.Bg5 then:
            • 16...Be7!? 17.a4 Kg7 18.Qf4 d5 19.Bh6+ gives White a comfortable game (Kovacevic-Vujosevic, Yugoslav ChT, Vrnjacka Banja, 1998).
            • 16...Bg7 17.Bd5 Bxd5 18.exd5 Rxe1+ 19.Rxe1 h6 20.Bxf6 continues to give White a small advantage in space.
        • 13...Bc8 14.h3 Ne8 15.c3 Bf6 16.cxd4 Bxd4 17.Ne2 gives White a slight advantage in space (Dannevig-Jansson, Norwegian Ch, Sandnes, 2005).
      • If 10...Qd7 11.h3 Nd8 then:
        • If 12.d4 exd4 13.Nxd4 Re8 14.Nf5 Ne6 then:
          • If 15.Qf3 c5 then:
            • If 16.Nd5 Nxd5 then:
              • 17.exd5 Nd4 18.Nxd4 cxd4 19.Bf4 Bf6 20.Qg3 gives White a slight advantage in space (Fedorchuk-Stern, Bundesliga 0607, Germany, 2006).
              • 17.Bxd5 Bxd5 18.exd5 Nd4 19.Nxd4 cxd4 20.Bf4 is equal (D. Mastrovasilios-Stern, Euro Ch, Dresden, 2007).
            • 16.Be3 c4 17.Ba2 Rac8 18.Rad1 Bf8 19.Nd5 gives White a small advantage in space (Shirov-Ivanchuk, Amber Blind, Monte Carlo, 2003).
          • If 15.Nxe7+ Rxe7 16.f3 Rd8 then:
            • 17.Bxe6 fxe6 18.e5 dxe5 19.Qxd7 Rdxd7 20.Rxe5 h6 21.Be3 Nd5 22.Re1 Re8 draw (Efimenko-Aronian, Aeroflot Op, Moscow, 2005).
            • 17.Be3 d5 18.exd5 Nxd5 19.Nxd5 Bxd5 20.Qxd5 Qxd5 21.Bxd5 Rxd5 22.Kf2 h5 draw (Galkin-Aronian, Aeroflot Op, Moscow, 2005).
            • 17.Bd5 Nxd5 18.exd5 Nf8 19.Rxe7 Qxe7 is equal.
        • If 12.Ne2 Ne6 13.Ng3 Rfe8 then:
          • If 14.c3 c5 then:
            • If 15.d4 exd4 16.cxd4 d5 then:
              • If 17.e5 Ne4 18.Nf5 Bf8 19.Be3 then:
                • If 19...Rac8 20.dxc5 N6xc5 21.N5d4 Nxb3 then:
                  • 22.Qxb3 Nc5 23.Qd1 a5 24.Qb1 Ne4 25.Rd1 b4 is equal (Kamsky-Ponomariov, IT, Sofia, 2006).
                  • 22.Nxb3 Qd8 23.Qd3 f6 24.exf6 Qxf6 25.Qd4 Qd8 gives Black more space, but the isolated pawn could be a problem (Svidler-Inarkiev, Russian Ch, Moscow, 2007).
                • 19...a5 20.Bc2 Rad8 21.dxc5 N6xc5 22.N5d4 is equal (Morozevich-Grischuk, Russian ChT, Sochi, 2006).
              • 17.dxc5 dxe4 18.Qxd7 Nxd7 19.c6 Bxc6 20.Nxe4 Bxe4 21.Rxe4 Ndc5 (Shirov-Adams, Candidates' ½-final M, Elista, 2007).
            • 15.a4 Bf8 16.axb5 axb5 17.Rxa8 Bxa8 18.Bc2 g6 19.Ng5 Bg7 20.Bb3 d5 21.Nxe6 Qxe6 22.exd5 draw (Z. Almasi-Onischuk, Euro Club Cup, Kemer, 2007).
          • 14.Ng5 c5 15.Nxe6 fxe6 16.c3 Bd8 17.a4 Bb6 is equal (Leko-Aronian, Amber Blind, Nice, 2008).

    10.Nbd2

    • White has a small advantage in space and mobility.
    • If 10.Be3 0-0 11.Nc3 c5 12.Rc1 Nc6 13.Nd5 also gives Whie a small advantage in space and mobility.

    10...c5 11.Nf1 Qc7

    • If 11...0-0 then:
      • 12.a4 Nc6 13.Bd2 c4 14.dxc4 bxc4 15.Bxc4 continues to give White a small advantage in space; the square to watch is d5.
      • 12.Ne3 c4 13.Ba2 Nbd7 14.Nf5 Re8 15.Bd2 is equal.

    12.Ng3 g6?!

    • Black keeps White's Knight out of f5 at the cost of weakening the dark squares around the usual castled position.
    • If 12...0-0 13.Nf5 Bc8 14.N3h4 Be6 then:
      • If 15.Be3 Nc6 16.Qf3 then:
        • 16...g6 17.Bh6 Rfb8 18.Bxe6 fxe6 19.Ne3 gives White a slight advantage in space.
        • 16...Bxb3 17.cxb3 Kh8 18.b4 g6 19.Nxe7 Qxe7 20.Bg5 gives White a small advantage in space.
      • If 15.Bg5!? Nc6! then:
        • If 16.Qf3 Kh8 then:
          • 17.a4 c4 18.axb5 axb5 19.dxc4 Rxa1 20.Rxa1 bxc4 21.Nxe7 Qxe7 is equal.
          • 17.Rac1 Bd8 18.Bd5 Bxf5 19.Nxf5 Nxd5 20.Bxd8 Raxd8 21.exd5 Ne7 is equal.
        • 16.Re3!? c4 17.Ba2 Ne8! 18.Nxe7+ Nxe7 19.Bxe7 Qxe7 is equal.

    13.Ba2

    • If 13.Bh6! Ng4 then:
      • If 14.Bd2 14...0-0 then:
        • 15.Qe2 Nc6 16.a4 Qd7 17.h3 Nf6 18.Bh6 gives White a small advantage in space.
        • If 15.Ba2 Nd7 then:
          • 16.h3 Ngf6 17.Qe2 Rac8 18.c4 gives White a small advantage in space.
          • 16.Qe2 Rac8 17.Bc3 Ngf6 18.h4 gives White a small advantage in space.
      • 14.Qd2 Nxh6 15.Qxh6 Bf8 16.Qh3 Bg7 17.Ne2 gives White a small advantage in space.

    13...Nbd7

    • White has a small advantage in space.
    • Also good is 13...h5! 14.h3 Nbd7 then:
      • 15.Ne2 0-0 16.Bh6 Rfd8 17.Nc3 c4 18.dxc4 bxc4 19.Bg5 gives White a small advantage in space.
      • If 15.Bg5 0-0 16.Ne2 Rfe8 then:
        • 17.Qd2 d5 18.exd5 Nxd5 19.Bxe7 Rxe7 20.Qg5 is equal.
        • If 17.c4 bxc4 18.Bxc4 then:
          • 18...d5 19.Bxf6 Nxf6 20.exd5 Nxd5 21.Bxd5 Bxd5 22.Nc3 is equal.
          • 18...Nb6!? 19.Nc3! Nxc4 20.dxc4 Rab8 21.Rb1 Red8 22.Qd3 gives White a small advantage in space.

    14.Bh6

    • White has a small advantage in space.

    14...Ng4 15.Bd2

    • If 15.Bg5 Ngf6 16.h4 h5 then:
      • 17.Nf1 0-0 18.Ne3 Rfe8 19.Qe2 Nb6 20.Nd2 gives White a small advantage in space.
      • 17.Qd2 0-0 18.Bh6 Rfe8 19.Nf5 d5 20.Rad1 gives White a small advantage with more aggressive pieces.

    15...h5?!

    • Black has not yet committed to castling. This would appear to put his King in a diffcult spont no matter on which side it castles, or if it remains in the center.
    • 15...0-0 16.Qe2 Ngf6 17.Rad1 Rac8 18.h4 c4 19.Bh6 gives White a small advantage in space.


    BLACK: Ivan Sokolov




    WHITE: Bjørn Møller Ochsner
    Position after 15...h7h5


    16.h3!

    • White has a comfortable after the Knight retreats.

    16...Nh6?!

    • Objectively better is to retreat to f6.
    • 16...Ngf6 17.Ne2 0-0 18.Bh6 Rfc8 19.Nc3 Nb6 20.Qe2 continues to give White a comfortable game.

    17.Qe2! Rc8 18.Rac1!?

    • White obviously intends to push the c-pawn forward.
    • 18.Nf1! c4 19.dxc4 bxc4 20.Rad1 Ng8 21.Ne3 Ngf6 gives White the advantage because he can take the pawn on c4 more easily than Black can take on e4.
    • 18.c4 Nb6 19.Rac1 bxc4 20.dxc4 Ng8 21.b4 gives White a comfortable game.
    • If 18.Be3!? then:
      • 18...Ng8! 19.a4 Ngf6 20.axb5 axb5 21.Bg5 c4 22.d4 gives White a small advantage in space.
      • If 18...c4!? then:
        • 19.dxc4 bxc4 20.Nd2 h4 21.Ngf1 Nf6 22.Rad1 gives White a strong initiative
        • 19.Rad1 Ng8 20.Bg5 Ngf6 21.Qe3 0-0 22.Bh6 gives White a fair game.

    18...Nf8

    • If 18...c4 then:
      • 19.dxc4 bxc4 20.Nf1 Nf6 21.Bxh6 Rxh6 22.N1d2 Kf8 23.Bxc4 gives White a comfortable game with an extra pawn and more space.
      • 19.Nf1 f5 20.Bxh6 Rxh6 21.exf5 gxf5 22.Ng3 f4 23.Nf5 continues to give White a comfortable game.

    19.b4 c4 20.dxc4!?

    • If 20.Bc3! h4 21.Nf1 Ne6 then:
      • 22.dxc4 Nf4 23.Qd1 0-0 24.Bd2 bxc4 25.Bxf4 exf4 26.N1d2 continues to give White a comfortable game with a threat to win a pawn at c4 and stronger pawns overall.
      • If 22.Qd1 then:
        • If 22...Ng8! 23.N1d2 Nf6 24.dxc4 bxc4 then:
          • 25.Re3 Bf8 26.Nxc4 Nxe4 27.Bb2 Rh5 28.Qd3 Nf4 is equal.
          • If 25.Rb1 Rh5 then:
            • 26.Qe2 26...Nf4 27.Qf1 Kf8 28.a4 Nd7 is equal.
            • 26.a4!? Kf8 27.a5 Nf4! 28.b5 axb5 29.Rxb5 Ba6 gives Black a slight advantage in space.
        • 22...Nf4 23.dxc4 transposes into the main line.


    BLACK: Ivan Sokolov




    WHITE: Bjørn Møller Ochsner
    Position after 20.dc4:p


    20...bxc4!

    • White still has a small advantage in space.

    21.Bxh6

    • If 21.Bc3 Nd7 then:
      • 22.Rcd1 Ng8 23.Bd2 h4 24.Nf1 Kf8 25.Ne3 continues to give White a small advantage in space.
      • 22.Nd2!? Nb6! 23.Rcd1 0-0 24.Nf3 f5 25.Qd2 Nf7 is equal.

    21...Rxh6 22.Qe3

    • 22.Nd2 h4 23.Qe3 Rh8 24.Ngf1 c3 25.Nc4 continues to give White a small adavantage; Black's pawn at c3 is deadwood.

    22...Rh8 23.Nd2 h4

    • The Kinght is serving no special role for White and would probably be redeployed anyway.
    • If 23...Ne6 24.Nxc4 Bc6 25.Qb6 Bb5 26.Qxc7 Rxc7 27.Ne3 gives White an extra pawn against a small advantage in space for Black.

    24.Ngf1

    • This is somewhat pedestrian.
    • A faster way to make use of the Knight is 24.Ne2! then:
      • 24...a5 25.Bxc4 Ne6 26.bxa5 Qxa5 27.Red1 Kf8 28.Bxe6 gives White an extra pawn and stronger pawns; Black has a small advantage in space.
      • If 24...Ne6 25.Nxc4 then:
        • 25...Kf8 26.Rcd1 Kg7 27.Na5 Ba8 28.Bc4 Rb8 29.Bd5 gives White an extra pawn and a significant advantage in space.
        • 25...d5? 26.exd5! Bxd5 27.Nb6 Bxa2 28.Nxc8 Qxc8 29.c4 gives White an extra pawn, the initiative and the advantage in space.

    24...f5?

    • Black weakens his King psoition.
    • 24...c3 25.Nc4 Ne6 26.Qxc3 Rh5 27.Qb3 Kf8 28.Na5 gives White an extra pawn and Black more space.


    BLACK: Ivan Sokolov




    WHITE: Bjørn Møller Ochsner
    Position after 24...f7f5


    25.Bxc4!

    • White has an extra pawn and a substantial advantage in space.

    25...Bxe4 26.Bxa6 Bxg2

    • If 26...Bb7 27.Bxb7 Qxb7 28.Qb3 Nd7 29.Ne3 Kf8 30.Rcd1 gives White an extra pawn and a safer King.

    27.Bxc8 Ba8 28.Ba6?!

    • The Bishop is unimportant. White could win by kicking in Black's center.
    • If 28.f4 Rh5 29.Ba6 Qc6 30.Nf3 Qxa6 31.N1d2 gives White a strong initiative; Black must scramble to prevent his center from being ripped apart.


    BLACK: Ivan Sokolov




    WHITE: Bjørn Møller Ochsner
    Position after 28.Bc8a6


    28...Qc6!

    • White is no longer in possession of a winning advantage.

    29.f3 Qxa6! 30.c4 Nd7 31.a4?!

    • The pawn is just loose here.
    • If 31.Qb3 Kf7 32.Ne3 Kg7 33.Kh1 Nf6 34.c5 gives White a strong game with his queenside passers.

    31...Rh5?!

    • White should now improve his advantage in space.
    • Correct is is 31...Qxa4! 32.Ra1 Qc6 33.Qf2 Bd8 34.Ne3 Bb7 35.Kh1 when White still has a slight advantage.

    32.b5!?

    • White advantaced the center pawn and leaves the a-pawn unguarded
    • If 32.a5! then:
      • If 32...Kf7 33.Re2 d5 34.Qb3 e4 then:
        • If 35.f4 then:
          • 35...Nf6 36.Ne3 d4 37.c5+ Kg7 38.b5 gives White a significant advantage from three passed connected pawns.
          • 35...g5 36.cxd5 Qxe2 37.d6+ Kf6 38.dxe7 Kxe7 39.Qg8 is equal.
        • 35.Rg2 f4 36.c5 e3 37.Nxe3 fxe3 38.Qxe3 is equal.
      • 32...Rg5+?! 33.Kh2! f4 34.Qf2 Kf7 35.Ne4 Bxe4 36.Rxe4 gives White a significant advantage from is mobile queenside pawns.
    • If 32.Kh1!? Rg5 33.a5 then:
      • 33...Kf7! 34.b5 Qc8 35.Qa7 e4 36.fxe4 fxe4 37.Kh2 is equal.
      • If 33...Qb7!? then:
        • If 34.Qb3! Qa7 35.c5 then:
          • 35...Kf8 36.Qe6 dxc5 37.Re3 Qc7 38.bxc5 f4 39.Rb3 gives White the means to drive Black off the board.
          • If 35...e4? then White wins after 36.Re3! dxc5 37.f4 Rh5 38.bxc5 Kf8 39.c6
        • 34.Rb1 f4 35.Qe2 Qc8 36.Kh2 Nf6 37.Ne4 gives White a comfortable game with connected passers on the queenside, the initiative and more freedom on the kindgide.


    BLACK: Ivan Sokolov




    WHITE: Bjørn Møller Ochsner
    Position after 32.b4b5


    32...Qc8!

    • The game is equal.

    33.c5

    • 33.Qc3 Nc5 34.Ne3 Nxa4 35.Qc2 Rg5+ 36.Kh2 Nb6 is equal.
    • 33.a5 Nc5 34.Qc3 Bf6 35.Ne3 Rg5+ 36.Kf1 Rg3 is equal.

    33...Rg5+ 34.Kh2 dxc5!?

    • This is the wrong way to recaputure. While Black blocks the c-file, he opens the d-file.
    • 34...Nxc5 35.Rc4 Rh5 36.a5 Qb8 37.b6 Bb7 remains equal.

    35.Nc4!

    • White has more freedom. Black's dark bound Bishop must defend d6 from a Knight fork.

    35...Qb7 36.Rc3 e4?

    • Black gives the central dark squares to White.
    • If 36...Qb8 37.Kh1 e4 38.f4 Rh5 remains equal.

    37.f4! Qb8

    • This is too late now. The horses have already left the barn.
    • If 37...Rh5 38.Rd1 then:
      • 38...g5 39.Nd6+ Bxd6 40.Rxd6 Qc7 41.Qd2 Ke7 42.Ne3 gives Black only a pawn for the exchange.
      • If 38...Kf8 39.Qf2 then:
        • 39...g5 40.Nfe3 Qc7 41.Nxf5 gxf4 42.Ncd6 f3 43.b6 leaves White up by the exchange.
        • If 39...Qc7? 40.a5 then:
          • If 40...Bf6 then White wins after 41.b6 Qc6 42.Rd6 e3 43.Rxc6 exf2 44.Rc8+.
          • If 40...g5 41.b6 then:
            • If 41...Qc6 then White wins after 42.Nfe3 Qe6 43.Qd2 Bc6 44.Qxd7 Bxd7 45.b7.
            • 41...Qc8 then White wins after 42.Nfe3 Nf6 43.Nd6 Bxd6 44.Rxd6 Ne8 45.Rg6.

    38.Kh1?!

    • This is how close White came to defeating one of the world's most respected grandmasters.
    • If 38.Rd1! Rh5 39.Qd2 Kf8 40.Kg1 e3 41.Qxe3 then:
      • 41...Qb7 42.Kf2 Bf6 43.Rxd7 Qxd7 44.Qxc5+ Qe7 45.Ne5 wins as 45...Qxc5 is met by 46.Kd7+ and 45...Bxe5 is refuted by 46.fxe5 Qxc5 47.Rxc5 Ke7 48.b6! Rh8 49.b7!! winning the light-bound Bishop.
      • If 41...Qc7 then White wins after 42.Rcd3.

    38...Rh5!

    • The game is agains equal.

    39.Rd1?!

    • This is possibly the result of time trouble near the forty-move time check.
    • 39.b6 g5 40.Qe2 Nf6 41.Rb3 e3+ 42.b7 Bxb7+ remains equal.


    BLACK: Ivan Sokolov




    WHITE: Bjørn Møller Ochsner
    Position after 39.Re1d1


    39...g5!

    • Black gains connected passed pawns, balancing White's advantage on the opposite wing, and freedom for his pieces on the kingside.

    40.Qe2

    • White attacks the hanging Rook. This is good enough to avert loos for now.
    • If 40.fxg5? then:
      • If 40...f4!! then:
        • If 41.Rxd7 then Black wins after 41...fxe3 42.Rxe7+ Kxe7 43.Ncxe3 Rxg5 44.Ng4 Rd5.
        • If 41.Qe2 e3+ 42.Kg1 Rxg5+ then:
          • 43.Qg4 Ne5 44.Nd6+ Bxd6 45.Qxg5 Nf3+ wins the Queen.
          • 43.Kh2 f3+ 44.Nd6+ Bxd6+ 45.Ng3 Bxg3+ 46.Kg1 Bf2+ 47.Kf1 Rg1#.
      • 40...Bxg5? 41.Qe2 Rh6 42.Nfe3 Qg3 43.Nd5 e3 44.Ncxe3 gives White a small advantage.
      • 40...Rxg5?! 41.Nd6+ Kf8 42.Rc2 Rh5 43.Rg2 Bxd6 gives Black a comfortable advantage.

    40...Nf6 41.Ne5

    • White seeks safety for the Knight in a forward position.
    • If 41.Nfe3? gxf4 42.Qg2 Kf8 then:
      • 43.Qg6 Qe8 44.Qxe8+ Kxe8 45.Nb6 fxe3 46.Nxa8 f4 gives Black a Bishop and two pawns for a Rook. Black's unchecked mass of advanced passed pawns is particularly dangerous.
      • If 43.Rg1? fxe3! 44.Qg7+ then Black wins after 44...Ke8 45.Qg6+ Kd7 46.Rd1+ Ke6 47.Nxe3 f4.
      • If 44.a5 then Black wins after 44...f4 45.Nb6 Kf7 46.Nd7 Qe8!! 47.Qg6+ Ke6 48.Qxe8 Nxe8.

    41...gxf4 42.Nc6 Qc7 43.Rdc1?

    • Doubling Rooks doesn't help White; it just relinquishes control of the d-file.
    • If 43.Qg2! Kf8 44.Rdc1 then:
      • 44...Bd6 45.a5 Bxc6 46.Qg6 Qf7 47.Qxf7+ Kxf7 48.bxc6 leaves Black with two minor pieces and two extra pawns against a Rook.
      • 44...Bxc6?! 45.Rxc5!! Bxc5 46.Rxc5 f3 47.Qb2 is equal.

    43...f3!

    • This is sufficient to nail down the victory.
    • Black als wins after 43...Rg5! 44.Qc4 e3 45.Qe6 Ne4 46.R3c2 Qd7.

    44.Qa2

    • No matter what he does with the Queen, White loses.
    • If 44.Qh2 Qxh2+ 45.Kxh2 Nd5 then:
      • 46.R3c2 Bd6+ 47.Kh1 Kd7 48.Na5 Nb4 49.Rd2 f2 threatens 50...e3#.
      • If 46.Nxe7 then Black wins after 46...Nxc3 47.Rxc3 Kxe7 48.Rxc5 Rg5 49.Ne3 Ke6.
    • If 44.Qf2 f4 45.Nxe7 Qxe7 then:
      • 46.Ne3 (blocking the advance of the pawns) 46...fxe3 47.Rxe3 Kf7 48.Rd1 Qe6 49.Rg1 Nd5 forces White to give way before the pawns.
      • If 46.Rxc5 Rxc5 47.Qxc5 Qxc5 48.Rxc5 e3! then:
        • 49.Re5+ Kd7 50.Rxe3 fxe3 51.Nxe3 f2+ leaves Black a piece to the good.
        • If 49.Rc8+ then Black wins after 49...Kd7 50.Rxa8 e2 51.Kg1 e1Q.
    • If 44.Qb2 then Black wins after 44...f4 45.Nh2 Bxc6 46.bxc6 Qxc6 47.Qb5 Kd7.

    44...f4 45.Qe6 Bxc6!?

    • Black falls into a tempting exchange that leaves him fighting for his victory.
    • If 45...Qd7! then Black wins easily after 46.Qxd7+ Kxd7 47.Rxc5 Rxc5 48.Rd1+ Bd6.

    46.Rxc5?

    • White fails to find the best move.
    • If 46.Qxc6+! Qxc6 47.bxc6 Kd8 then:
      • If 48.a5 then Black has no immediate win after 48...Kc7 49.a6 Rh8 50.Rc4 Bd6 51.Ra4 e3.
      • 48.Rb3 e3 49.Rb8+ Kc7 50.Rb7+ Kxc6 51.Rxe7 e2 gives Black only three pawns for a Rook, but just look at them!


    BLACK: Ivan Sokolov




    WHITE: Bjørn Møller Ochsner
    Position after 46.Rc3c5:p


    46...Bd5!

    • Black wins easily.
    • Even stronger is 46...Rxc5! 47.Rxc5 Bd5 then:
      • If 48.Rxd5 Qc1 49.Rg5 Qxf1+ then:
        • If 50.Rg1 Qe2 then 51.Rg7 gives White a last fire in Black's position which Black extinguishes with
        • 51...Qe1+ 52.Kh2 Qf2+ 53.Kh1 Qc5.
        • If 50.Kh2 then Black wins after 50...Qe2+ 51.Kh1 f2 52.Rg8+ Nxg8 53.Qxg8+ Kd7.
      • If 48.Rxc7 then Black wins quickly after 48...Bxe6 49.b6 Bd6 50.Rc6 Kd7 51.Rxd6+ Kxd6 when Black is a piece to the good and and the King has time to stop White's pawns.

    47.Qxf6

    • White self-destructs, but all moves lose.
    • If 47.Rxc7 then Black wins after 47...Bxe6 48.b6 Bd5 49.b7 Bxb7 50.Rxb7.

    47...Bxf6 48.Rxc7 e3

    • Not as strong, but still strong enough, is 48...f2 49.R7c5 e3+ 50.Rxd5 e2.

    49.Kh2 f2 50.R7c2 Rg5 51.Nd2 Rg2+ 52.Kh1 Rg1+

    • Stronger is 52...e2 53.Rc8+ Bd8 54.Rb1 e1Q+ 55.Nf1 Rg1+ 56.Kh2 Rh1#.

    53.Kh2 exd2 0-1

    • If 54.Rc8+ then Black wins after 54...Bd8 55.Rxd8+ Kxd8 56.Rxg1 fxg1Q+ 57.Kxg1 d1Q+.
    • Bjørn Møller resigns.

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    Response to Jack Rabbit (Reply #1)

    Tue Sep 4, 2012, 03:20 AM

    12. British Championships, North Shields, Northumberland



    North Shields Fish Quay
    Photo by Les Hull in Geograph.org.uk
    (Creative Commons License, Arrtibution/Share Alkike)

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    Response to Jack Rabbit (Reply #12)

    Tue Sep 4, 2012, 03:25 AM

    14. Ledger - Jones, Round 11

    With this victory, Gawain Jones earned the right to meet Stephen Gordon in a playoff for first place, which Mr. Jones won.



    Gawain Jones
    Photo by Brittle Heaven (http://commons.wikimedia.org/wiki/User:Brittle_heaven) in Wikimedia Commons (http://en.wikipedia.org/wiki/File:Jones_rd6_4thEUIO.JPG)
    (Creative Commons License, Attribution/Share Alike)


    David Ledger - Gawain Jones
    British Championships, Round 11
    North Shields, Northumberland, 4 August 2012

    Open Sicilian Rat Game: Dragon Defense (Yugoslav Opening)


    1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 0-0 9.Bc4 Bd7 10.0-0-0 Rb8 11.Bb3 Na5 12.h4

    • For moves and variations up to here, see Sjugirov-Timofeev, Russian Ch HL, Taganrog, 2011.
    • If 12.Bh6 then:
      • If 12...Bxh6 13.Qxh6 b5 then:
        • If 14.g4 14...Nxb3+ 15.Nxb3 b4 16.Nd5 Nxd5 17.exd5 then:
          • 17...Rb6 18.Rhe1 e5 19.dxe6 fxe6 gives Black a backward pawn to target (Domínguez Pérez-Carlsen, IT, Linares, 2009).
          • 17...Ba4 18.Nd4 Qa5 19.h4 Rfc8 20.Kb1 Qxd5 21.b3 Bd7 is equal (Kritz-Jianu, Euro Ch, Plovdiv, 2008).
          • 17...Qc7 18.h4 e5 19.dxe6 Bxe6 20.h5 Rfc8 21.Rh2 Bxb3 22.axb3 Rb6 is equal (Anuprita-Premnath, Commonwealth Ch, Nagpur, 2008).
        • 14.h4 e5 15.Nde2 b4 16.Nd5 Nxb3+ 17.axb3 Nxd5 18.Rxd5 Rb6 19.h5 g5 20.f4 Bg4 then:
          • 21.Nd4 gxf4 22.g3 fxg3 23.Rg1? Qh4 24.Kb1 f6 25.Ne6 gives Black two extra pawns (Zambrana-Zhao Zong Yuan, IT, São Paulo, 2008).
        • If 21.fxe5 Bxe2 22.exd6 then:
          • If 22...Rb5!? 23.Re1! then:
            • 23...Re8 24.d7 Re5 25.Qc6 Rbxd5 26.exd5 Re7 27.Rxe2 wins for White.(Gwaze-P. Littlewood, IT, Coventry, 2005).
            • 23...Rxd5 24.exd5 Re8 25.d7 gives White a strong position for the piece; Black has no room for error (Haldane-Snape, Corres, 2007).
          • 22...f6 23.e5 Rb5 24.Rxb5 Bxb5 25.Rd1 fxe5 leaves Black with a Bishop for a pawn.
      • If 12...b5 13.h4 Nc4 14.Qg5 then:
        • If 14...Bxh6 15.Qxh6 Kh8 16.Qg5 Rc8 17.h5 gxh5 18.Qh4 is equal (Gutsche-de Blasio, Corres, 2002).
    • If 14...Nh5?! 15.Bxg7! (White has a comfortable game) 15...Kxg7 then:
      • 16.Bxc4! bxc4 17.g4 h6 18.Qe3 Nf6 19.e5 gives White more activity and an impressive advantage in space (Sandipan-Tan, British Ch, Torquay, 2002).
      • If 16.Kb1?! h6! 17.Qc1 Ng3 18.Rhe1 then:
        • 18...a5?! 19.Ndxb5! Bxb5 20.Nxb5 Rxb5 21.Bxc4 gives White an extra pawn and the initiative (Land-Ong, Texas Ch, Houston, 2006).
        • 18...Qa5 19.Nd5 e6 20.Ne3 e5 21.Ne2 Nxe2 22.Rxe2 gives White a small advantage in space.

    12...b5 13.h5

    • If 13.Kb1 Nc4 14.Bxc4 bxc4 15.Ka1 then:
      • If 15...Qb6 16.Rb1 Qa6 17.Bh6 then:
        • If 17...Bxh6 18.Qxh6 Qa5 19.h5 Rb6 20.hxg6 fxg6 21.g4 is equal (Villaba-Urtnasan, World Youth BU16, Porto Carras, 2010).
        • If 17...e5 18.Nde2 Be6 19.h5 then:
          • If 19...Rb6 20.g4 Qb7 21.Bxg7 Kxg7 then:
            • If 22.Ng3 Rb8 23.Qc1 Kf8 24.Qg5 gives White a fair advantage in space (Ter Shahakyan-Dvirnyy, World Jr Ch, Chotowa, 2010).
            • If 22.Nd4!! then:
              • If 22...exd4 then White wins after 23.Qxd4 h6 24.g5 hxg5 25.h6+ Kh7 26.Qxf6 (Rybka 4).
              • If 22...Re8 then White wins after 23.hxg6 fxg6 24.Nxe6+ Rxe6 25.Qh6+ Kg8 26.g5.
          • If 19...Bxh6 20.Qxh6 then:
            • If 20...Qb7 21.g4 Rfe8 22.Ng3 then:
              • 22...Qe7 23.Nf5!! gxf5 24.gxf5 Kh8 25.fxe6 fxe6 26.Rhd1 gives White pressure on the kingside, but Black has defended well and has counterplay in the center.
              • If 22...Red8? then White wins after 23.Nf5!! Ne8 24.f4 Rd7 25.Nh4.
            • If 20...Qa5? then White wins after 21.g4 Qc7 22.g5 Ne8 23.f4 Qd7 24.Rbf1.
      • If 15...h5 16.g4 then:
        • If 16...hxg4 17.h5 Nxh5 18.fxg4 Bxg4 19.Rdg1 Qd7 then:
          • If 20.Rh4 f5 21.exf5 Bxf5 22.Bh6 e5 23.Nxf5 Qxf5 24.a3!? is equal (Kanarek-Can, World Jr Ch, Chotowa, 2010). 24.Bxg7 gives White a small advantage.
          • If 20.Bh6 then:
            • 20...Qb7 21.b3 Bxh6 22.Qxh6 Qb4 23.Nd5 leaves Black in a mating net and he resigns (Henry-Nicholson, Op, Toronto, 2011).
            • 20...Be5! 21.Rh4 Qb7 22.Rb1 Qc8 23.Bxf8 Kxf8 24.Nd5 is equal.
        • If 16...Qb6 17.Rb1 Qa5 then:
          • 18.gxh5!? Nxh5 19.Rhg1 Rfc8 20.f4 e5 is equal (Piorun-Barski, World Jr Ch, Chotowa, 2010).
          • 18.g5 Ne8 19.Rhd1 Kh7 20.Nde2 Nc7 21.Bd4 is equal.

    13...Nc4 14.Bxc4 bxc4 15.hxg6

    • 15.g4 Qb6 16.Rdg1 Qxb2+ 17.Kd1 Bxg4 18.fxg4 gives White a small advantage in space (Kulkami-Abhilash, World Jr Ch, Chennai, 2011).

    15...fxg6 16.Bh6 Qb6 17.b3 cxb3 (N)

    • 17...Bxh6 18.Qxh6 Rf7 19.Nde2 Qb4 20.Qe3 a5 is equal (Sánchez-Oliver, OlW, Dresden, 2008).


    BLACK: Gawain Jones




    WHITE: David Ledger
    Position after 17...cb3:p


    18.axb3

    • The game is equal.

    18...Bxh6 19.Qxh6 Rf7 20.Qg5!?

    • White wants to exploit the weaknesses in Black's kingside, but this requires that he neglect his own weaknesses.
    • 20.Rd3 e5 21.Nde2 Qb4 22.Rhd1 Rb6 remains equal.

    20...Rc8!

    • Black immediately jumps on White's hanging Knight.

    21.Nd5?!

    • White allows Black to extablish a piece presence in the center.
    • Better is 21.Nde2 a5 22.Rd3 Qb4 23.Kd1 Qa3 24.Qc1 is equal.


    BLACK: Gawain Jones




    WHITE: David Ledger
    Position after 21.Nc3d5


    21...Nxd5!

    • Black opens up the center, resulting in augmented strength on the queenside.

    22.exd5 Qa5!?

    • This would make more sense if White only had one Rook on the back rank, but as it is it only wastes a tempo.
    • 22...Qc5! (striking at c2) 23.Kb2 a5 24.g4 a4 25.Qe3 Kh8 gives Black a fair advantage in space.

    23.Kb2!

    • Black now has only a small advantage.

    23...e5?!

    • Black neglects White's counterplay on the queenside.
    • If 23...Qc5 24.g4 then:
      • 24...Qc3+ 25.Kb1 Rc5 26.Rd3 Qa5 27.c4 e6 is equal.
      • 24...a5 25.Qe3 a4 26.Rd3 axb3 27.cxb3 Ra8 is equal.

    24.Ne2?!

    • White also neglects his counterplay on the queensice.
    • If 24.Nc6! Bxc6 25.Rxh7 Kxh7 26.Rh1+ Kg7 27.Qh6+ Kf6 is equal.

    24...Bf5! 25.Rd2

    • 25.c3 Rb7 26.Rh4 Qc5 27.Qd2 Qf2 28.Ra4 Qxg2 gives White an extra pawn.

    25...Rb7?!

    • This move is inaccurate. Black should put all the pressure he can on White's weakness at c2.
    • 25...Qc5! 26.Rc1 a5 27.g4 Bd7 28.Rd3 a4 29.Qe3 Qb4 continues to give Black a dangerous a-pawn and a substantial advantage in space.

    26.Ra1?

    • White allows Black to correct his mistake from the last move.
    • If 26.Qe3! Rc5 27.Rh4 Qd8 28.g3 Qc8 29.c3 Qb8 gives Black pressure on b3 and only a small advantage in space; White has serious hopes of saving the game.


    BLACK: Gawain Jones




    WHITE: David Ledger
    Position after 26.Rh1a1


    26...Qc5!

    • Black piles up on c2.

    27.Rc1

    • Nothing will save c2. The time would be better spent, if therre were more time.
    • If 27.Ra3 Bxc2 28.Qf6 Rbc7 then:
      • 29.Qh4 Rb8 30.Qa4 Qe3 31.Rxc2 Rxc2+ 32.Kxc2 Qxe2+ leaves Black a Rook to the good.
      • 29.Qe6+ Kg7 30.Qh3 Qb4 31.Qxc8 Rxc8 32.Rxa7+ Kf8 leaves Black with a Queen for a Rook.
    • If 27.c4 Rxb3+ then:
      • If 28.Kc1 Qa3+ then:
        • If 29.Kd1 Qxa1+ 30.Nc1 Qxc1+ then:
          • 31.Ke2 Rb1 32.Qxf5 Qe1+ 33.Kd3 Rb3+ 34.Kc2 Qb1#.
          • 31.Kxc1 Rb1#.
        • 29.Rxa3 Rb1#.
      • If 28.Kxb3 Rb8+ then:
        • 29.Ka4 29...Qb4#.
        • 29.Kc3 Qb4#.

    27...Kg7

    • Black wins after 27...Rb6 28.Qxf5 gxf5 29.Rcd1 Ra6 30.c4 Qa3+.

    28.g4

    • White might hold out longer after 28.Rdd1 Bxc2 29.Rd3 Qb5 30.Re3 h6.

    28...h6 29.Qh4

    BLACK: Gawain Jones




    WHITE: David Ledger
    Position after 29.Qg5h4


    29...Bxc2!!

    • The piece sacrifice is the icing on the cake.

    30.Rcxc2

    • If 30.Qe7+ then Black wins after 30...Rxe7 31.Rdxc2 Qe3 32.Rxc8 Qxe2+.

    30...Rxb3+ 31.Kc1

    • If 31.Ka1 then 31...Qa3+ 32.Ra2 Qc1+ 33.Nxc1 Rxc1#.

    31...Qa3+!

    • This is the quicket way home.

    32.Kd1 Rb1+ 33.Nc1 Qxf3+ 34.Re2 Qd3+ 0-1

    • White must hemorhage material.
    • Mr. Ledger resigns.

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    Response to Jack Rabbit (Reply #12)

    Sun Sep 16, 2012, 05:29 PM

    26. Gordon - Roe, Round 2



    Steve Gordon
    Photo by Brittle Heaven (http://commons.wikimedia.org/wiki/User:Brittle_heaven) in Wikimedia Commons (http://en.wikipedia.org/wiki/File:Gordon_rd7_4thEUIO.JPG)
    (Creative Commons License, Attribution/Share Alike)


    Steve Gordon - Simon Roe
    British Championships, Round 2
    North Shields, Northumberland, 24 July 2012

    Orthodox Queen's Gambit: Normal Defense (Swedish Variation)
    (Tarrasch Defense)


    1.d4 d5 2.c4 e6 3.Nf3 c5 4.cxd5 exd5 5.g3 Nc6 6.Bg2 c4


    7.0-0 Bb4 8.b3

    • If 8.Nc3 Nge7 9.e4 then:
      • If 9...dxe4 10.Nxe4 then:
        • If 10...0-0 then:
          • If 11.a3 Ba5 12.Qa4 Bb6 then:
            • If 13.Qxc4 then:
              • 13...Nxd4?! 14.Nxd4 Qxd4 15.Qe2! Qd7 16.Rd1 Qe6 17.Rd6 gives White a muscular game (Gligoric-Kostic, Yugoslav Ch, Ljubljana, 1947).
              • 13...Be6 14.Qd3 Nxd4 15.Nxd4 Qxd4 16.Qxd4 Bxd4 17.Nd6 gives White a small advantage in space.
            • 13.Be3 Be6 14.Nc5 Bxc5 15.dxc5 Nd5 16.Bg5 gives White a small advantage in space (Korchnoi-O. Rodríguez, IT, Salamanca, 1991).
          • If 11.Qc2 then:
            • If 11...Bf5 12.Nh4 Rc8 13.Nf6+ then:
              • 13...Kh8 14.Nxf5 Nxf5 15.Qxf5 Qxf6 16.Qxf6 gxf6 17.Be3 gives Black greater activity; Black will not be able to hold his extra pawn (Lautier-O. Rodríguez, IT, Barcelona, 1992).
              • 13...gxf6? 14.Nxf5 Nxd4 15.Nxd4 Qxd4 16.Bxb7 Rb8 17.Ba6 gives White an extra pawn and stronger pawns.
            • 11...Bg4 12.Qxc4 Bxf3 13.Bxf3 Qxd4 14.Qxd4 Nxd4 15.Bg2 is equal (Thi Thanh An Nguyen-Zhukova, World ChTW, Mardin, Turkey, 2011).
        • 10...Bf5 11.Ne5 Qxd4 12.Qxd4 Nxd4 13.a3 Bxe4 14.Bxe4 gives White a comfortable game (Nimzovich-Stoltz, IT, Stockholm, 1934).
      • If 9...0-0 10.exd5 Nxd5 then:
        • If 11.Bg5 Qa5 12.Nxd5 Qxd5 then:
          • 13.Ne5 Qb5 14.a4 Qa6 15.Nxc6 bxc6 16.d5 gives White stronger pawns, more pressure in the center and more freedom; Black has a slight edge in space (Tukmakov-Lputian, Rpd, Tilburg, 1994).
          • If 13.a3 Ba5 14.Ne5 Qb5 15.a4 Qa6 then:
            • 16.Nxc6 bxc6 17.Qc2 Be6 18.Rfc1 Rab8 19.Bf1 gives White more activity (Timoshchenko-Tseitlin, Op, Palma de Mallorca, 1989).
            • 16.Ng4 Bd8 17.Bf4 Nb4 18.Bd2 Nc6 19.d5 gives White a small advantage in space (Stocek-Bazant, Czech Championship, Olomouc, 1995).
        • If 11.Nxd5 Qxd5 12.a3 Ba5 then:
          • If 13.Ne5 Qb5 14.a4 Qa6 then:
            • If 15.Nxc6 15...bxc6 then:
              • 16.Qf3 Bd7 17.Bf4 Rac8 18.Rfc1 Be6 19.Bf1 gives White a slight advantage in space (Igla-Bertrand, Euro Club Cup, Kallithea, Greece, 2008).
              • 16.Qh5 Be6 17.Ra3 Rad8 18.g4 g6 19.Qe5 gives White a clear advantage in space (Gligoric-Furman, TM, Leningrad, 1957).
            • If 15.Be3 Be6 16.Qh5 Rad8 17.Rfd1 Bd5 then:
              • If 18.Nd7?! Rxd7 19.Bxd5 then:
                • 19...Rfd8!? 20.Be4 g6 gives Black a slight advantage in space (Lautier-Conquest, IT, Clichy, 2001).
                • 19...g6 20.Qf3 Nb4 21.Be4 f5 22.Bb1 Re8 gives Black a fair advantage in space.
              • 18.Bxd5 Rxd5 19.Qf3 Rd6 20.Rac1 gives White a small advantage in space.
          • 13.Ng5?! Qxd4! 14.Qa4 Bd8 15.Rd1 Qe5 16.Bf4 gives White only a slight advantage (Szabo-Bronstein, Candidates' Trmt, Amsterdam, 1956).

    8...cxb3 9.Qxb3 Nge7 10.Ba3

    • If 10.Ne5 then:
      • 10...0-0 11.Nxc6 Nxc6 12.e3 Be6 13.a3 Be7 14.Qxb7 is equal (Sousa Mendes-Stahlberg, IT, Mar del Plata, 1946).
      • 10...Qb6 11.Nd3 Bd6 12.Qxb6 axb6 13.Nc3 Nxd4 14.Bf4 gives White the initiative (Avrukh-Kiik, Op, Gibraltar, 2009).

    10...Bxa3

    • If 10...a5 then:
      • 11.Nc3 0-0 12.Rfc1 Bf5 13.e3 a4 14.Qb2 gives White a fair advantage in space (Przezdziecka-Zhukova, Euro ChW, Kusadasi, Turkey, 2006).
      • If 11.Bxb4 axb4 12.Nbd2 0-0 13.a3 Qa5 14.Ra2 gives Black more space and White stronger pawns (Baburin-Juarez Flores, Ol, Palma de Mallorca, 2004).

    11.Qxa3 0-0 12.Nbd2 (N)

    • 12.Nc3 Bf5 13.Rfd1 Qa5 14.Qxa5 Nxa5 15.Rac1 gives White a slight advantage in space (Antoshin-Mikenas, Soviet Ch, Riga, 1970).

    12...Be6 13.Nb3!?

    • The game is equal.
    • 13.e3 Rc8 14.Rfc1 Qa5 15.Qb2 b6 16.Ne5 continues to give White a slight advantage in space.

    13...b6!

    • The game is equal.

    14.Rfc1 f6 15.Ne1 a5!?

    • Black looks for space on the queenside, but he should imporve his minor pieces first.
    • 15...Qd7 (covering the otherwise unguarded Bishop) 16.Nd3 Bf5 17.Rc3 a5 18.Rac1 Kf7 remains equal.


    BLACK: Simon Roe




    WHITE: Steve Gordon
    Position after 15...a7a5


    16.e3!

    • White has a small advantage in space; the text move allows the Knight to move from b3..

    16...Nb4!?

    • Black opens the c-file to White's Rook. It is difficult to see what Black expects in compensation.
    • Better is 16...Qd7 (reinforcing the minor pieces tasked ith keeping lines closed) 17.Nd2 Rfc8 18.Nd3 Bf5 19.Bf1 continues to give White a small advantage in space.

    17.Qb2!

    • White has a comfortable game with command of the open file and stronger pawns.

    17...Qd6 18.Bf1!?

    • White takes pressure off of Black's isolated central pawn.
    • 18.a3 Nbc6 19.Nd2 Rab8 20.Nd3 g5 21.Nb1 continues to give White a comfortable game.

    18...Bf5!

    • White has a small advantage in space.

    19.Nd2 Rab8!?

    • Black uses the wrong Rook.
    • If 19...Rfb8 (now White has Rooks behind both pawns) 20.a3 Na6 21.Bd3 Ra7 22.Qb1 Bxd3 23.Nxd3 gives White a small advantage in space.


    BLACK: Simon Roe




    WHITE: Steve Gordon
    Position after 19...Ra8b8


    20.Nb1!

    • White has a comfortable advantage in space.
    • 20.Qb3!? Nbc6! 21.Nd3 g5 22.a3 Rfc8 23.Nb1 gives White a small advantage in space.

    20...Rfc8 21.Nc3 Kh8 22.a3

    • White has a comfortable game.
    • If 22.Qb3 Nbc6 23.Nd3 then:
      • 23...g5 24.a3 Kg7 25.Be2 Nd8 26.g4 Bg6 27.h3 gives White a small advantage with the threat of 28.Nb5.
      • If 23...Be4 24.a3 g5 then:
        • 25.Be2 Kg7 26.Nb2 Bg6 27.Bf3 Bf7 28.Nba4 gives White a comfortable game.
        • 25.Nb2 Bf3 26.Nba4 Qe6 27.Bg2 gives White a comfortable game.

    22...Nbc6 23.Ba6 Rd8 24.Qe2

    • 24.Be2 Rdc8 25.Qb5 Qd7 26.Qb3 continues to give White a comfortable game.

    24...Na7 25.Nd3!?

    • White's plan seems to involve bringing a Rook to b1 (the text move blocks the diagonal from the Black Bishop) in order to put more pressure on the b5 square to keep the Black pawn from advancing.
    • If 25.h4 Nac6 then:
      • 26.Nd3 Qd7 27.Bb5 Rbc8 28.Nf4 continues to give White a comfortable advantage in space.
      • 26.Bb5!? Na7! (preparing to drive back the Bishop) 27.Ba4 Rdc8 28.Nd3 b5 29.Bb3 gives White a small advantage in space.


    BLACK: Simon Roe




    WHITE: Steve Gordon
    Position after 25.Ne1d3


    25...b5!

    • Black simply gets this move in before Whit can put more pressure on the b-file.

    26.Nc5

    • The Bishop cannot move from a6. This is the only way to keep it on the board.

    26...Qb6?!

    • Black want to prevent the Bishop from breaking out with 27.Bxb5, which is now possible thanks to White's last move that attacks b5 a third time with the Queen.
    • If 26...Qc6 27.Nd1 Rb6 28.a4 Rxa6 29.Nxa6 Qxa6 30.Rc5 gives White only a small advantage in space.

    27.Ra2!

    • White threatens to put the Rook on a2; Black has no more pieces to defend the pawn.

    27...b4

    • Black is forced to let the Bishop out in order to save the pawn.

    28.axb4 axb4 29.N3a4

    • White has a comfortable game with stronger pawns and a fair advantage in space.

    29...Qc6 30.Nb3?!

    • The Knight is at a good post and should remain there in order to keep the c-file closed to Black's heavy pieces.
    • If 30.Qd2 Qd6 31.Rb2 Kg8 32.Rxb4 Rxb4 33.Qxb4 gives Black a small advantage in space.

    30...Qd6!?

    • Black attacks the Bishop; the Bishop has no square to move where it would not be under attack.
    • 30...Qe8! 31.Nac5 Nb5 32.Bxb5 Qxb5 33.Qxb5 Rxb5 34.f3 continues to give White a comfortable game.

    31.Nac5!

    • White preserves the Bishop at a6 and takes a significant advantage.

    31...Qb6 32.Qf3 Nb5?

    • Black had better moves here, but none that could offer any prolonged hope.
    • If 32...Nac6! 33.Rca1 then:
      • 33...Ra8 34.Bb7 Rxa2 35.Rxa2 Bc8 36.Bxc8 Rxc8 37.Qe2 continues to give White active Rook that has a6 available for its use.
      • 33...Qc7 34.Bd3! Bxd3 35.Nxd3 Qd6 36.Qd1 Rb5 37.Nbc5 gives White complte command of the a-file


    BLACK: Simon Roe




    WHITE: Steve Gordon
    Position after 32...Na7b5


    33.Bxb5 Qxb5 34.Ra7 Nc6

    • If 34...Bd7 then White wins after 35.Rc7 Rbc8 36.Rb7 Qc6 37.Ra7.

    35.Rxg7 Kxg7 36.Qxf5

    • White has an extra pawn and an extra piece.

    36...Rd6 37.Ne6+ Kf7

    BLACK: Simon Roe




    WHITE: Steve Gordon
    Position after 37...Kg7f7


    38.Qxh7+

    • Better is 38.Nbc5 Rh8 39.Qh5+ Ke7 40.Ng7 Kd8 41.Nf5, during the course of which Black should resign.

    38...Kxe6

    • White still has two pawns for a Rook, but much, much better pawns.

    39.Nc5+ Qxc5 40.dxc5

    • White's material advantage now is a Qurrn and two pawns against a Rook and Knight.

    40...Rdd8 41.Qd3 Rd7

    • If 41...b3 then White wins after 42.f4 Ne7 43.Rb1 b2 44.Qa3 Rdc8 45.g4.

    42.Ra1 Rc7 43.Ra6 b3 44.Rb6 b2 45.Qb5 1-0

    • 45...Rxb6 46.Qxb6 Rc8 47.Qxb2 leaves Black without a prayer.
    • Mr. Roe resigns.

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    Response to Jack Rabbit (Reply #1)

    Fri Sep 7, 2012, 03:31 AM

    15. Ukrainian National Championship, Kiev



    The Golden Gate of Kiev
    Photo by Håkan Henriksson (Narking, http://commons.wikimedia.org/wiki/User:Narking) in Wikimedia Commons (http://commons.wikimedia.org/wiki/File:Golden-gate-2008.jpg)
    (Creative Commons License, Attribution/Share Alike)

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    Response to Jack Rabbit (Reply #15)

    Fri Sep 7, 2012, 03:32 AM

    16. Korobov - Miroshnichenko, Round 8

    Anton Korobov won the Ukrainian national championship ahead of Ponomariov, Areshchenko and Volokitin.



    There is no photo of Anton Korobov available with an internet-friendly copyright

    Photo by Jon Sullivan from public-domain-photos.com (Public Domain)


    Anton Korobov - Evgenij Miroshnichenko
    Ukrainian National Championship, Round 8
    Kiev, 4 August 2012

    Semi-Slav Queen's Gambit: Grand Anti-Meran Gambit


    1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.Nf3 e6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 Nd7 8.Bd3 dxc4 9.Bxc4 g6 10.0-0 Bg7

    • For moves and variations up to here, see Anand-Leko, Tal Mem, Moscow, 2009.

    11.Qc2

    • If 11.Rc1 0-0 12.b4 Qe7 13.Qb3 then:
      • If 13...b6 14.b5 Bb7 15.bxc6 Bxc6 then:
        • 16.Rfd1 Rfd8 17.Qb1 Bb7 18.Bd3 Rac8 19.Be4 Nf6 is equal (Ivanchuk-Karjakin, IT, Foros, 2006).
        • 16.Nd2 a6 17.Bd3 b5 18.Be4 Bxe4 19.Ncxe4 is equal (Nikolic-Anand, Amber Rapid, Monte Carlo, 1998).
      • If 13...Rd8 14.Rfd1 Nb6 15.Be2 Bd7 16.Ne4 then:
        • 16...Be8 17.Nc5 Nc8 18.Ne5 Nd6 19.a4 Rac8 20.g3 gives White a small advantage in space (Aseev-Korotylev, Petroff Mem Op, St. Petersburg, 2000).
        • 16...Nd5 17.Nc5 Be8 18.a4 Rac8 19.Bf1 Bf8 20.Rb1 gives White a small advantage in space (N. Pert-Korotylev, Op 0203, Hastings 2002).
    • If 11.e4 e5 12.d5 Nb6 13.Bb3 Bg4 then:
      • If 14.h3 Bxf3 15.Qxf3 Qxf3 16.gxf3 Ke7 17.dxc6 bxc6 then:
        • 18.Rac1 Rhd8 19.Rc2 h5 20.Nd1 Rd6 21.Ne3 a5 is equal and soon agreed drawn (Meier-Quattrocchi, Corres, 1998).
        • 18.Rfc1 Rhd8 19.Nd1 Rd6 20.Rc3 a5 21.Ne3 h5 is equal (Khalifman-Akopian, IT, Yerevan, 1996).
      • If 14.Rc1 0-0 15.h3 Bxf3 16.Qxf3 Qxf3 17.gxf3 then:
        • If 17...Rfd8 then:
          • If 18.Rfd1 Bf6 19.dxc6 bxc6 then:
            • 20.Kf1 Bg5 21.Rc2 Kf8 22.Ke2 Rxd1 23.Nxd1 Rc8 is equal (Salgado López-Debashis, World Jr Ch, Chotowa, Poland, 2010).
            • 20.Rxd8+ Rxd8 21.Nd1 Rd6 22.Rc5 Kf8 23.Kf1 h5 is equal (Carlsen-Karjakin, Amber Rapid, Nice, 2009).
          • 18.dxc6 bxc6 19.Nd1 Rac8 20.Rc5 Bf8 21.Rc2 h5 gives Black a slight advantage in space (Aronian-Gelfand, Grand Prix, Jermuk, 2009).
        • 17...Rfc8 18.dxc6 Rxc6 19.Nd5 Bf8 20.Nxb6 axb6 21.Bd5 is equal (Leko-Gelfand, Rpd M, Miskolc, 2010).

    11...0-0

    • If 11...Qe7 12.Rad1 0-0 then:
      • If 13.Rfe1 Nb6 14.Bb3 c5 then:
        • 15.Ne4 cxd4 16.exd4 Bd7 17.Qc7 Rab8 18.Ne5 gives White a small advantage in space after 18...Rfc8 forces the exchange of Queens (Cebalo-Djuric, Montecatini Terme, 2002).
        • 15.a4 c4 16.Ba2 Qb4 17.Ra1 Bd7 18.Bb1 a5 gives Black a small advantage in space (Z. Rahman-Villamayor, Op, Calcutta, 2001).
      • 13.a3 b6 14.Rfe1 Bb7 15.e4 Rac8 16.e5 gives White the advantage in space, but also a pawn weakness at d4 (Bu Xiangzhi-Pashikian, Euro Club Cup, Ohrid, 2009).

    12.Bb3 Qe7 13.Rad1

    • If 13.Ne4 then:
      • If 13...e5 14.Nc3 Kh7 then:
        • If 15.Rfe1 Re8 then:
          • If 16.Rac1 e4 17.Nd2 f5 18.Ne2 Nf8 19.Qc5 Qxc5 20.Rxc5 Be6 21.Rc2 then:
            • 21...Rad8 22.Bxe6 Nxe6 23.b4 h5 24.Nb3 h4 is equal (Gupta-Sandipan, Asian Ch, Subic Bay, 2009).
            • 21...Bxb3 22.Nxb3 Ne6 23.Nc5 Nxc5 24.Rxc5 Bf8 gives Black a slight advantage in space (Gupta-Palit, Op, Kolkata, 2009).
          • 16.Rad1 e4 17.Nd2 f5 18.Nc4 Nb6 19.Nxb6 axb6 is equal (Mamedyarov-Gelfand, Tal Mem Blitz, Moscow, 2007).
        • If 15.Rad1 f5 16.d5 then:
          • 16...e4 17.Nd4 Ne5 18.Nce2 Nd3 19.dxc6 bxc6 20.Qxc6 remains equal (Bu Xiangzhi-Motylev, World Cup, Khanty-Mansiysk, 2007).
          • 16...Nc5 17.Bc4 a5 18.Be2 Bd7 19.Nd2 e4 20.Nc4 gives White, who is better able to open the center, a slight edge (Vayser-Papenin, Cores, 2009).
      • If 13...Rd8 14.Rad1 then:
        • 14...a5 15.a3 Ra6 16.Rd2 Nf6 17.Nc5 Ra7 18.Ne5 gives White a comfortable game with his Knights providing a large advantage in space, but at least one of them soon will be driven off (Bareev-Dreev, IT A, Wijk aan Zee, 1995).
        • 14...Rb8 15.h4 Nf6 16.Nxf6+ Bxf6 17.h5 gxh5 18.Qe4 gives White the advantage in space and better pawn structure; Black's position is defensable (Korobov-Sakaev, Chigorin Mem Op, St. Petersburg, 2010).

    13...b6

    • 13...a6 14.Rfe1 b5 15.Ne4 Bb7 16.Nc5 Nxc5 17.dxc5 is equal (Hebden-Collins, Op 0708, Hastings, 2008).

    14.e4 Bb7 15.Rfe1 Rad8 (N)

    • Black's strategy will be based on play in the center.
    • 15...Rfd8 (in this variation, Black will play on the queenside) 16.e5 Nf8 17.Qe2 c5 18.d5 exd5 19.Nxd5 Bxd5 20.Bxd5 gives White a comfortable game (Chernin-Kuczynski, Euro ChT, Drebrecen, 1992).

    16.e5

    • White is slightly better.

    16...a6 17.Qe4 b5

    • White remains slightly better. This is an awful position for Black's Bishops.

    18.h4!?

    • White embarks on a plan to restrain Black's kingside.
    • Better is 18.Qf4 (this is a prophylaxis against the potential unmasking of the attack from the Bishop at b7 that still keep the Queen in the extended center) 18...a5 when:
      • 19.Bc2 c5 20.Be4 cxd4 21.Nxb5 Bxe4 22.Qxe4 d3 is equal
      • 19.Ne4 c5 20.d5 Bxd5 21.Bxd5 exd5 22.Rxd5 is equal.


    BLACK: Evgenij Miroshnichenko




    WHITE: Anton Korobov
    Position after 18.h2h4


    18...Ba8!?

    • Black replies with a waiting move that does nothing to free his game.
    • 18...Nb6! 19.Qf4 c5 20.dxc5 Rxd1 21.Bxd1 Qxc5 is equal; Black's Queen and Queen's Bishop have more scope.

    19.h5! c5

    • 19...b4 20.Na4 c5 21.d5 exd5 22.Bxd5 Bxd5 23.Rxd5 leaves White threatening a pawn on the kingside.

    20.d5 c4

    • If 20...b4 21.Na4 exd5 22.Bxd5 Bxd5 23.Rxd5 then:
      • 23...Nf6 24.exf6 Qxe4 25.Rxe4 Rxd5 26.fxg7 Kxg7 27.hxg6 fxg6 28.b3 gives White a small advantage in space.
      • 23...g5?! 24.Qc4! Rfe8 25.g3 Rc8 26.b3 Rc7 27.Kg2 gives White a substanial advantage in space.

    21.Bc2 exd5?!

    • The pawn exchange only weakens Black's center.
    • If 21...b4 22.hxg6 fxg6 23.Nh4 Qc5 24.Nxg6 Rxf2 is equal.

    22.Nxd5!

    • White has a comfortable game and will soon have an extra pawn.

    22...Bxd5 23.Rxd5 Nc5 24.Rxc5 Qxc5 25.hxg6 f5?!

    • White has two extra pawns, two passed pawns and a better center; Black has more space.
    • If 25...f6 26.e6 f5 then:
      • 27.Qf4 Rde8 28.Nh4 Qd4 29.Qxd4 Bxd4 30.e7 continues to give White a comfortable game with an extra pawn.
      • If 27.Qe2!? Qe7! 28.b3 Bc3 29.Rc1 Rd6 30.Qe3 Bg7 is equal.


    BLACK: Evgenij Miroshnichenko




    WHITE: Anton Korobov
    Position after 25...f7f5


    26.Qf4!

    • White has an extra pawn and threatens to win more material.

    26...Qb6

    • 26...Qc6 27.Bxf5 Qxg6 28.Bxg6 Rxf4 29.e6 Bf8 30.e7! wins the Bishop.

    27.Bxf5 Qxg6

    • This is Black's only move that give him any hope of survival.
    • 27...Rxf5?? loses immediately to 28.Qxf5 .

    28.Bxg6 Rxf4 29.e6 Bf6

    • 29...Bf8 30.e7 Bxe7 31.Rxe7 Rd1+ 32.Kh2 Rf6 33.Bc2 continues to give White a comfortable game. Black's Rook is in an awkward place.

    30.e7 Bxe7 31.Rxe7 Rd6?!

    • White clearly has the upper hand. Black could do more tp disrupt White's position.
    • Better is 31...Rd1+ 32.Kh2 Rf6 33.Bc2 when:
      • 33...Ra1 34.a3 Kf8 35.Re2 c3 36.bxc3 Rxa3 37.Ne5 leaves White threatening to win the exchange with 28.Nd7+.
      • If 33...Rc1? 34.Re2 Ra1 then:
        • White wins after 35.b3! c3 36.b4 Kg7 37.Bb3 Rc1 38.Nd4 prevents Black's pawn from coming any further.
        • 35.a3!? c3 36.Bb3+ Kg7 37.bxc3 Rxa3 38.Nd4 gives White a slight material advantage and more freedom.


    BLACK: Evgenij Miroshnichenko




    WHITE: Anton Korobov
    Position after 31...Rd8d6


    32.Bc2!

    • White has more freedom; Black's Rook at f4 can scarcely navigate the rank.

    32...Kf8 33.Re2 b4?

    • Any advance of the Black's queenside pawns is doomed. With two minor pieces, White can halt the advnce with no difficulty.
    • If 33...Rf7 (falling back to defend the King) 34.Kf1 then:
      • 34...Re7 35.Ne5 Rc7 36.f4 c3 37.bxc3 Rxc3 38.Kf2 still gives White a cleart advantage, but the Black Rook at c3 makes it deifficult to activate the King.
      • 34...Rfd7 35.g3 Rd8 36.Re4 Re8 37.Rf4+ Ke7 38.a4 continues to give White two pieces for a Knight.

    34.Kf1!?

    • A stronger idea is to inhibit the advance of a passed pawn.
    • If 34.Re3! then:
      • If 34...c3 35.bxc3 then:
        • 35...Rc4 36.Bb3 Rxc3 37.Re4 a5 38.Nd4 Rc1+ 39.Kh2 gives White the material advantage equivalent to two extra pawns.
        • 35...Rc6 loses immediately to 36.Ne5 Rd6 37.Ng6+ .
      • 34...a5 35.Ne5 Kg7 36.g3 Rd2 37.gxf4 Rxc2 38.Rg3+ leaves White with an extra piece.

    34...Rb6?

    • Black still has very few moves that don't lose.
    • If 34...c3 35.Bb3 then:
      • 35...Rf5 36.bxc3 bxc3 37.Ne5 Black will not be able to make any further progress with his passed pawn.
      • 35...a5? 36.bxc3! bxc3 37.Re3 a4 38.Bc2 Rc4 39.a3! leaves the Rook at c4 with only limited navigation of the rank.


    BLACK: Evgenij Miroshnichenko




    WHITE: Anton Korobov
    Position after 34...Rd6b6


    35.Re3!

    • White has more freedom and the material equalivalent of an extra pawn.

    35...a5

    • 35...Rf7 36.Ke2 Rc7 37.Re4 a5 38.Nd4 Re7 39.Ke3 prevents Black's queenside pawns making further progress.

    36.Ne5 Rd4 37.Ke1 b3

    • If 37...Kg7 38.Rg3+ then:
      • 38...Kf8 39.Rf3+ Ke7 40.Ke2 b3 41.axb3 cxb3 42.Bd3 continues to give White two pieces for a Rook and a pawn; White has the only passed pawn on the board. Black's Rooks are active, but Black's defense against them has been accurate and harmonious.
      • 38...Kf6 loses right away to 39.Rg6+ Kxe5 40.Rxb6 .

    38.axb3 cxb3 39.Bxb3 a4

    • If 39...Kg7 40.Rg3+ Kf8 41.Ng6+ then:
      • If 41...Ke8 42.Re3+ Kd8 43.Ne5 a4 44.Bd1 Kc7 45.Rc3+ then:
        • If 45...Kb7 46.Nd3 Rg6 47.f4 Re6+ 48.Kf2 Kb6 49.Bf3 gives White the material advantage equivalent to two extra pawns.
        • 45...Kd6 46.Nc4+ leaves White a piece up.
      • If 41...Kg7 42.Ne7+ Kf8 43.Nc8 Re4+ 44.Kf1 then:
        • If 44...Rbe6 then 45.Bxe6 leaves White a piece up.
        • If 44...Rxb3 then White wins after 45.Rxb3 .


    BLACK: Evgenij Miroshnichenko




    WHITE: Anton Korobov
    Position after 39...a5a4


    40.Bxa4!

    • The liquidation of the queenside pawns makes the game simpler.

    40...Rxb2 41.Bd1

    • Also good is 41.Nd3 Rb6 42.Bc2 Rc6 43.Kd2 then:
      • 43...Rd8 44.Bb3 Rc5 45.Re4 Kg7 46.Rh4 Rd7 47.g3 White wins by advancing his connected pawns.
      • 43...Kg7 44.Bb3 Rc7 45.g3 Rdd7 46.Re5 Re7 47.Rh5 White wins by advancing his pawns.

    41...Ra2 42.g3 Kg7

    • 42...Ra1 43.Nd3 Kg7 44.Kd2 Ra3 45.g4 Rd8 46.f3 leaves Black out of reserve pawn tempi.

    43.Bb3 Rb2 44.Kf1 h5 45.Nf3 1-0

    • 45...Rd6 46.Kg2 Kh6 47.Rc3 Rb6 48.Bc2 then:
      • 48...Rb8 49.Nd4 Kg7 50.Ne6+ Kf6 51.Nf4 wins the pawn.
      • 48...Kg7 49.Ne5 Re6 50.Rc7+ Kf8 51.Ng6+ Kg8 52.Nf4 wins the pawn.
    • Evgenij Vitalijovich resigns.

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    Response to Jack Rabbit (Reply #15)

    Fri Sep 7, 2012, 03:33 AM

    17. Ponomariov - Volokitin, Round 5



    Andrei Volokitin
    Photo by karpidis from flickr (http://www.flickr.com/photos/8022405@N02/1809866421/)
    (Creative Commons License, Attribution/Share Alike)


    Ruslan Ponomariov - Andrei Volokitin
    Ukrainian NAtional Championship, Round 5
    Kiev, 31 July 2012

    West India Game: King's Indian Defense (Catalan Opening/Pterodactyl Variation)


    1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 c5 5.Bg2 Qa5+

    • Dr. Eric Shiller, an American international master, has dubbed this the Pterodactyl Variation.
    • More convetional variations of the Tal-Indian are found in Meier-Gashimov, Euro ChT, Novi Sad, 2009.

    6.Nc3

    • If 6.Bd2 Qb6 then:
      • If 7.Nc3 cxd4 8.Na4 then:
        • If 8...Qd8 9.Nxd4 then:
          • If 9...0-0 10.0-0 d5 11.cxd5 Nxd5 then:
            • 12.e3 e5 13.Nb3 Nc6 14.Be1 Nf6 15.Bc3 gives White a slight advantage in space (Aseev-I. Smirin, Alekhine Mem Op, Moscow, 1992).
            • If 12.Nb3 Nc6 13.Qc2 then:
              • 13...Bg4!? 14.Qc4 Nf6?! 15.Bc3! Qc8 16.Nac5 Bh3 17.Rac1 gives White a small advantage in space (Kursova-Ni, Euro ChW, St. Petersburg, 2009).
              • 13...Qd6 14.Rad1 Ndb4 15.Qc4 Qe6 16.Rc1 gives White a small advantage in space.
          • If 9...Nc6 10.Nxc6 bxc6 11.0-0 0-0 then:
            • 12.Rc1 d5 13.Be3 e6 14.Nc5 Qe7 15.cxd5 gives White a small advantage (Dzindzichashvili-D. Gurevich, US Ch, Jacksonville, Florida, 1990).
            • 12.c5 Rb8 13.b4 Nd5 14.Rb1 Ba6 15.Re1 gives White a slight edge (Astashov-Loginov, St. Petersburg Ch, 2005).
        • 8...Qd6 9.Bf4 Qb4+ 10.Bd2 Qd6 11.Bf4 Qb4+ 12.Bd2 draws by repetition (Antoshin-Adorjan, IT, Budapest, 1973; Izeta Txabarri-Shulman, Op, Ubeda, 1997; and Maletin-Inarkiev, Russian Ch HL, Tyumen, 2012).
      • If 7.dxc5 Qxc5 8.Qb3 then:
        • If 8...Nc6 9.Nc3 0-0 10.Rc1 d6 then:
          • 11.Be3 Qa5 12.Bd2 Qc5 13.Be3 Qa5 14.Bd2 Qb4 (14...Qc5 is a threefold repetition) 15.Qxb4 Nxb4 16.Nd4 gives White a slight advantage (Smejkal-Dr. Nunn, Bundesliga 8788, Germany, 1988).
          • 11.Nd5 Ne4 12.0-0 e6 13.Be3 Qa5 14.Nc3 is equal (Lafuente-Shulman, Ol, Khanty-Mansiysk, 2010).
        • If 8...d6 9.Nc3 0-0 then:
          • 10.0-0 Nc6 11.Be3 Qh5 12.Nd5 Ng4 13.h3 Nxe3 draw (Vucic-Shulman, IT, San Francisco, 2001).
          • 10.Be3 Qa5 11.0-0 Na6 12.a3 Bd7 13.Qa2 gives White a slight edge (Beliavsky-Shulman, Op, Koszalin, 1998).
    • If 6.Nbd2 cxd4 7.Nxd4 Nc6 then:
      • If 8.N4b3 Qc7 then:
        • 9.c5 d6 10.0-0 0-0 11.cxd6 Qxd6 12.Nc4 Qb4 gives Black a slight advantage in space (Vaganian-Szekely, Moscow Chess League, 1982).
        • 9.0-0 d6 10.Nb1 Be6 11.Na3 0-0 gives White a small advantage in space (Djuric-Velimirovic, IT, Sarajevo, 1984).
      • If 8.Nc2?! 0-0 9.0-0 then:
        • 9...d6 10.e4 Bg4 11.f3 Be6 12.Kh1 Rac8 gives Black a significant advantage in space (Zagorskis-Fressinet, Euro ChT, Porto Carras, Greece, 2011).
        • 9...Qh5 10.e3 Qxd1 11.Rxd1 b6 12.b3 Bb7 13.Bb2 is equal (Christiansen-Leko, Op, New York, 1994).

    6...Ne4 7.Qd3

    • If 7.Bd2 Nxd2 8.Qxd2 then:
      • If 8...d6 9.0-0 Nc6 10.e3 then:
        • If 10...0-0 11.h3 then:
          • 11...Bd7 12.a3 Rfc8 13.b4 Qd8 14.Nd5 e6 gives Black a small advantage in space (Chiburdanidze-Dydyshko, Op, Münster, 1995).
          • 11...cxd4 12.Nxd4 Bd7 13.Rfd1 Nxd4 14.exd4 Be6 15.Nd5 gives White a small advantage in space (Karpov-Khaifman, IT, Linares, 1995).
        • If 10...Bg4 then:
          • 11.h3 Bxf3 12.Bxf3 0-0 13.Bxc6 bxc6 14.Rfd1 is equal (Matlak-I. Radziewicz (Ralich), 1st Saturday June, Budapest, 2001).
          • 11.d5 Bxf3 12.Bxf3 Ne5 13.Be2 Qb4 14.Ne4 is equal (Karpov-J. Polgar, Rpd M, Budapest, 1988).
      • If 8...cxd4 9.Nxd4 Nc6 10.e3 0-0 11.0-0 then:
        • 11...Nxd4 12.exd4 d6 13.Rfe1 Re8 14.a3 Qc7 15.Nd5 gives White a small advantage in space (Morovic Fernández-Shirov, Rapid KO, León, 1995).
        • 11...Rd8 12.Rfd1 e6 13.a3 a6 14.Rac1 Ne5 15.Ne4 gives Black a small advantage (Karpov-Timman, Euwe Mem, Amsterdam, 1988).

    7...cxd4

    • 7...Nc6 8.0-0 Nxc3 9.bxc3 d6 10.Bd2 Qa4 is equal (Tregubov-Y. Vovk, French ChT, Mulhouse, 2011).

    8.Nxd4 Nc5 9.Qd1 Nc6 10.e3

    • If 10.Be3 Ne6 11.Nxe6 then:
      • If 11...Bxc3+ 12.bxc3 dxe6 13.0-0 0-0 14.Qb3 Qc7 then:
        • 15.Qb5 Bd7 16.Rab1 Rab8 17.Rfd1 Rfd8 18.Bf4 e5 19.Bxc6 Bxc6 20.Qxe5 draw (Baburin-Ivanchuk, Ol, Yerevan, 1997).
        • 15.c5 Bd7 16.Rab1 Rab8 17.Rfd1 Na5 18.Qb4 gives White a slight advantage in space (Hulak-Vaganian, IT, Marseille, 1987).
      • 11...dxe6 12.Qb3 0-0 13.0-0 Nd4 14.Bxd4 Bxd4 15.Rfd1 gives White a fair advantage in space (Lohmann-Masek, Corres, 2007).

    10...Ne6

    • 10...0-0 11.0-0 Qd8 12.Rb1 a5 13.b3 b6 14.Ba3 give White more freedom (Laznicka-Ponomariov, Euro Club Cup, Ragaska Slatina, 2011).

    11.Nxe6 (N)

    • If 11.0-0 0-0 12.Nxe6 then:
      • 12...fxe6 13.Bd2 Qb4 14.Qb3 a5 15.Rab1 Ne5 16.Qxb4 axb4 gives Black a small advantage in space (Dizdar-Stevic, Croatian Ch, Marija Bistrica, 2011).
      • If 12...dxe6 13.Bd2 then:
        • If 13...Qc5 14.Qe2 then:
          • 14...Ne5?! 15.b3 Rd8 16.Rfd1 Rb8 17.Ne4 Qc7 18.Bc3 gives White a comfortable game (Dizdar-Vaganian, IT, Sarajevo, 1987).
          • 14...Na5 15.b3 Bd7 16.Ne4 Qc7 17.Rac1 gives White a small advatage in space.
        • 13...Qa6 14.Qa4 Qxa4 15.Nxa4 Ne5 16.b3 Bd7 reamins equal.

    11...Bxc3+

    • Black has a slight advantage in space.
    12.bxc3 dxe6 13.0-0

    • 13.Qb3 Qc7 14.Rb1 0-0 15.Ba3 Rd8 16.Qb5 e5 continues to give Black a slight advantage.

    13...0-0 14.Qb3 Qc7 15.c5!?

    • the outposts off c4 are of mor use to White than those stemming for c5.
    • If 15.Ba3 then:
      • 15...e5 16.Rfd1 Bg4 17.Rd5 Rab8 18.Rb1 Be6 continues to give White a small advantage in space.
      • 15...Na5 16.Qb4 Re8 17.Qc5 Nc6 18.f4 Bd7 19.Rfd1 gives Black stronger pawns and White more space.


    BLACK: Andrei Volokitin




    WHITE: Ruslan Ponomariov
    Position after 15.c4c5


    15...e5! 16.c4 Bf5!?

    • 16...Bg4 hits at d1, preventing the Rook from going there before White prepares the move.
    • 16...Na5! 17.Qb4 Bg4 18.Bb2 Nc6 19.Qa4 Be2 continues to give Black a small advantage in space.

    17.Bd2!?

    • White puts a hanging pieces on an open file.
    • 17.Bb2 Rac8 18.Rad1 Bg4 19.Rd5 Be6 20.Rc1 f6 is equal.
    • If 17.Rd1 Kg7 18.Rd5 h5 19.h4 Be6 20.Bd2 then:
      • 20...f6 21.Rb1 Rab8 22.Be4 Rfc8 23.Qa4 Nd8 24.Bb4 is equal.
      • 20...Bxd5!? 21.cxd5 Nd8 22.Rc1 f6 23.e4 b6 24.c6 gives White a slight advantage.

    17...Rad8!

    • Black has a small advantage in space.

    18.Rfd1!?

    • A better idea is to get the Bishop out of the way now, then drive the Rook from d8.
    • 18.Bc3 Bd3 19.Rfd1 e4 20.Rd2 f6 21.Rb2 Rd7 continues to give Black a small advantage in space.


    BLACK: Andrei Volokitin




    WHITE: Ruslan Ponomariov
    Position after 18.Rf1d1


    18...Bg4!

    • The attack on the Rook that protects the Bishop gives Black a comfortable game.

    19.f3 Be6 20.Bf1?!

    • White remove protection from the f-pawn. It is soon lost.
    • 20.a3 f6 21.Be1 Kg7 then:
      • If 22.Rac1 Rxd1 23.Rxd1 Rd8 24.Rxd8 then:
        • 24...Nxd8 25.Qb5 Nc6 26.Kf2 Bd7 27.Bc3 g5 gives Black a small adavntage.
        • 24...Qxd8 25.f4 Qd7 26.Bd5 Bh3 27.Bc3 Qf5 gives Black the initiative and a small advantage in space. White cannot play 28.Qxb7?? because of 28...Qd3!
      • 22.Kf2?! Nb8! 23.f4 exf4 24.exf4 Nd7 25.c6 bxc6 gives Black a comfortable game.

    20...e4! 21.Bc3

    • It does White no good to save the pawn.
    • If 21.fxe4? then Black wins after 21...Bg4! 22.Bc3 Rxd1 23.Rxd1 Bxd1 24.Qxd1 Ne5.

    21...exf3

    • Black has an extra pawn.

    22.Rxd8 Rxd8 23.Rd1 Rxd1!?

    • Black allows White to take command of the d-file; better is to maintain the tension.
    • If 23...g5! 24.Rxd8+ Nxd8 25.Qb1 f6 26.Qe4 Qxc5 leaves Black two pawns to the good


    BLACK: Andrei Volokitin




    WHITE: Ruslan Ponomariov
    Position after 23...Rd8d1:R


    24.Qxd1!

    • Of course.

    24...Ne5 25.Bxe5 Qxe5 26.Qd8+ Kg7 27.Qd4

    • If 27.Qd2? then Black wins after 27...g5! 28.c6 bxc6 29.Qd4 Qxd4 30.exd4 Kf6!.

    27...Qxd4

    • White's central pawn mass is nowhere near as dangerous as it appears.
    • If 27...Qf6 28.Kf2 Bf5 29.Qxf6+ Kxf6 30.Kxf3 Bb1 31.a3 Kf5 gives Black an extra pawn and a more active Bishop.

    28.exd4 g5 29.Bd3 g4 30.a3?

    • White plays a waiting move when there is no time to wait.
    • If 30.Be4 b6 31.Bb7 Bxc4 then:
      • If 32.c6 Bd5 33.a4 a6 then:
        • If 34.Ba8 b5 35.axb5 axb5 then:
          • 36.c7 Be6 37.Bb7 b4 38.c8Q Bxc8 39.Bxc8 h5 gives Black thre pawns, including a passer, for a Bishop.
          • If 36.Kf2 Be6 37.Bb7 Kf6 38.c7 b4 then:
            • 39.c8Q Bxc8 40.Bxc8 h5 gives Black thre pawns, including a passer, for a Bishop.
            • 39.d5? Bd7! 40.c8Q Bxc8 41.Bxc8 Ke5 gives Black thre pawns, including a passer, for a Bishop; it's an easy win.
        • If 34.Kf2? b5! 35.axb5 axb5 36.Ba8 Be6 then:
          • 37.Bb7 b4 38.c7 b3 39.c8Q Bxc8 40.Bxc8 h5.
          • If 37.c7 Bc8 38.Be4 b4 39.Ke3 b3 40.Kd3 f5!.
      • If 32.a3 e5 then:
        • If 33.c6 then Black wins after exd4 34.c7 Be6 35.c8Q Bxc8 36.Bxc8 h5 gives Black four pawns, including a passer, for a Bishop.
        • If 33.cxb6? then Black wins after 33...axb6 34.dxe5 f6! 35.h3 fxe5 36.hxg4 Bd3.


    BLACK: Andrei Volokitin




    WHITE: Ruslan Ponomariov
    Position after 30.a2a3


    30...f5!

    • Black's pawns are safe.

    31.Kf2 Kf6

    • If 31...Bd7 32.Bc2 then Black wins after 32...Kf6 33.Bb3 e5 34.d5 f4 35.gxf4 exf4.

    32.h4

    • If 32.h3 h5 33.d5 Bd7 then:
      • 34.hxg4 hxg4 35.Bc2 Ke5 36.Ke3 Be8 37.Bd3 e6 gives Black an extra pawn and a passer.
      • If 34.Bc2 then Black wins after 34...gxh3 35.Bd1 e5 36.Bxf3 e4 37.Bd1 Ke5.

    32...Bd7 33.Bc2

    • If 33.Ke3 then Black wins after 33...e5 34.d5 Ba4 35.Bb1 e4 36.Kf2 Ke5.

    33...e5 34.d5

    • If 34.dxe5+ Kxe5 35.Ke3 a5 then:
      • 36.Bb1 Ba4 37.Bd3 h6 38.Bb1 Bb3 39.Bd3 Ba2 leaves White running out of playable moves.
      • 36.Bd3 Ba4 37.Bf1 Bd1 38.Bd3 Be2 39.Bb1 Bxc4 leaves Black with two extra pawns

    34...h6

    • A quicker win comes after 34...e4 35.Bd1 f4 36.gxf4 Kf5 37.Kg3 e3.

    35.Ke3 e4 36.c6

    • If 36.Bd1 Kg6 37.Bc2 Be8 then:
      • If 38.Bd1 Kf6 39.Bc2 Ke7 then:
        • 40.Bd1 Ba4 41.d6+ Kd8 42.c6 bxc6 43.Bxa4 f4+ leaves Black an easy win.
        • If 40.d6+ then Black wins after 40...Ke6 41.Bb1 Ba4 42.Kf2 Kd7 43.Kf1.
      • 38.Bb3 Kg7 39.Bc2 Kf7 40.Kf2 Kf6 41.Bd1 h5 leaves Black the the resources to restain and eliminate White's pawn mass on the queenside of center.

    36...bxc6 37.Ba4

    • If 37.Bd1 Ke5 then:
      • If 38.Bb3 Be8 39.a4 a5 then:
        • 40.d6 c5 41.Bd1 Kxd6 42.Kf2 Ke5 leaves White unable to halt the march of Black's moble pawns.
        • If 40.Ba2 then Black wins after 40...Bd7 41.Bb3 cxd5 42.cxd5 Be8 43.Ba2 Bxa4.
      • If 38.h5 then Black wins after 38...cxd5 39.cxd5 Kxd5 40.Bc2 Kc4.


    BLACK: Andrei Volokitin




    WHITE: Ruslan Ponomariov
    Position after 37.Bc2a4


    37...cxd5!!

    • Also good, but less spectacular, is the pawn sacrifice 37...f4+!! 38.gxf4 g3 39.dxc6 Bg4 40.c7 f2.

    38.Bxd7 d4+ 39.Kd2

    • The White King is caught in a mating net.
    • If
    • 39.Kxd4 then Black wins after 39...f2 40.Kd5 e3 41.Bb5 f1Q 42.h5 Qf3+.

    39...e3+ 40.Kd3

    • If 40.Ke1 Ke5 41.c5 d3 then:
      • If 42.h5 Kd4 43.Bb5 Kc3 then:
        • 44.c6 e2 45.Bxd3 Kxd3 46.c7 Ke3 47.c8Q f2#.
        • 44.a4 e2 45.Kf2 Kd2 46.Kg1 e1Q+ 47.Kh2 Qf2+ 48.Kh1 Qg2#.
      • If 42.Bb5 Kd4 then:
        • If 43.Kf1 e2+ 44.Kf2 Kc3 45.Bxd3 then:
          • 45...Kxd3 46.c6 Kd2 47.Kg1 e1Q+ 48.Kh2 f2 49.c7 Qg1#.
          • If 45...Kd2 then after 46.Bxe2 fxe2 47.h5 e1Q+ 48.Kg2 Ke2 Black give mate in three.
        • If 43.Kd1 then after 43...Kc3 44.Bxd3 Kxd3 45.Kc1 Kc3 46.Kd1 e2+ Black delivers mate quickly.

    40...e2 41.Kd2 d3 42.Ke1

    • If 42.Bxf5 Kxf5 then:
      • If 43.Ke1 Ke4 44.Kd2 Kd4 then:
        • 45.Ke1 Ke3 46.c5 d2#.
        • If 45.Kc1 Kc3 46.Kb1 Kb3 Black gives mate on the following move.
      • If 43.c5 f2 44.Kc1 d2+ Black soon gives mate.

    42...Ke5 43.c5 Kd4 0-1

    • If 44.Kd2 then Black delivers mate soon after 44...f2.
    • Ruslan Olegovich resigns.

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    Response to Jack Rabbit (Original post)

    Fri Sep 7, 2012, 04:06 AM

    18. Update from Istanbul (Thursday, September 6): USA! USA! USA!


    Photo by Robster1983 (http://en.wikipedia.org/wiki/User:Robster1983) in Wikimedia Commons (http://en.wikipedia.org/wiki/File:%C4%B0stanbul-Ayasofya.JPG)
    (Public Domain)

    Reigning US champion Hikaru Nakamura defeated former world champion Vladimir Kramnik and former Soviet child prodigy Gata Kamsky, now an American citizen, scored over Alexander Grischuk as the US team defeated Russia by the score of 2½-1½ in the ninth round of the general group at the fortieth Chess Olympiad today (Thursday) in Istanbul.

    Russia came into today's round alone in first place, but after the US upset the Russian team it finds itself in a four-way tie for first with the US, China and Armenia, all with 15 match points each.

    Tomorrow, the US will play China, Russia will play Argentina and Armenia goes up against Holland.

    In the women's group, China took down France, 3-1, and continues to hold 1-point edge over the Russian women going into tomorrow's tenth round. Russia also won today by the score of 3-1 over India.

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    Response to Jack Rabbit (Original post)

    Sun Sep 9, 2012, 02:56 PM

    22. Update (Sunday, September 9): Olympics Finish; ARM, RUS win general group; RUS, CHN win women's


    Photo by Robster1983 (http://en.wikipedia.org/wiki/User:Robster1983) in Wikimedia Commons (http://en.wikipedia.org/wiki/File:%C4%B0stanbul-Ayasofya.JPG)
    (Public Domain)

    The fortieth Chess Olympiad ended today in Istanbul, which as Constantinople was the capital of the Eastern Roman Empire, with Russia and Armenia tying for first place in the general group and Russia and China tying in the women's group.

    The Armenian general team and the Russian women's team will be awarded gold medals based on tie break points.

    The Chinese general team began the day in first place, but faltered and lost to Ukraine in today's final round when the fabled veteran Vassily Ivanchuk took down Wang Hao on board one in just 26 moves. Ukraine took the bronze medal as a result.

    Individual gold medals in the general group go to Levon Aronian of Armenia for his performance on board 1, David Navara (Czechia) on board 2, Shakhriyar Mamedyarov (Azerbaijan) on board 3, Vlad Tkachiev (France) on board 4 and Dmitry Jakovenko (Russia) for the reserve players. In the women's group, reigning women's world champion Hou Yifan (China) wins gold on board 1, Zhao Xue (China) on board 2, Nadya Kosintseva (Russia) on board 3, Huang Qian (China) on board 4 and reigning Russian women's champion Natalia Pogonina for the reservists.

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    Response to Jack Rabbit (Original post)

    Sat Sep 22, 2012, 09:52 PM

    30. Imagine if they had designated pawns in chess.

    Or would that be called checkers. Hmmmm.


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    Response to madinmaryland (Reply #30)

    Sat Sep 22, 2012, 11:01 PM

    31. Actually, checkers is called "draghts" (pronouced "drafs") in Britain.

    It comes from the French dames meaning "Queens."

    In the old Hindu/Arabic version of the game, the Queen was the weakest piece. It could only move on square diagonally at a time.

    As for using a "designated" pawn, chess players do that all the time. One of the strategic uses of a pawn is to keep a line closed. If there is no pawn available for the purpose, then the next best thing is a minor piece.

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