Chess (August): Wang Hao sqeeks by Magnus to win Biel

[Jack Rabbit]

4. Karjakin - Fridman, Round 5

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Sergey Karjakin
[/center][font size="1"]Photo by Stefan64 (http://commons.wikimedia.org/wiki/User:Stefan64) from Wikipedia
(Creative Commons License, Attribution/Share Alike)
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Sergey Karjakin - Daniel Fridman
Sparkassen Chess Meeting, Round 5
Dortmund, 17 July 2012

Closed Caro-Kann Game: Short Opening

1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nf3 e6 5.Be2 c5 6.Be3 Qb6

• For moves up to here, see Ganguly-Antonio, Asian Ch, Subic Bay, 2009.

7.Nc3 Nc6

• If [font color="red"]7...Qxb2[/font] then:
• If [font color="red"]8.Qb1 Qxb1+ 9.Rxb1[/font] then:
• If [font color="red"]9...c4 10.Rxb7 Nc6 11.Nb5[/font] then:
• [font color="red"]11...Nd8 12.Rc7 Rb8 13.Nd6+ Bxd6 14.exd6 Rb1+ 15.Bd1[/font] is equal(Karjakin-Eljanov, Ol, Khanty-Mansiysk, 2010).
• [font color="burgundy"]11...Rb8 12.Rxb8+ Nxb8 13.Kd2 a6 14.Na7 Kd7 15.Rb1[/font] gives White an excellent game(Bologan-Palo, Samba Cup, Skanderborg, 2003).
• [font color="darkpink"]9...b6 10.dxc5 bxc5 11.Rb7 d4 12.Bxd4 cxd4 13.Nxd4[/font] is equal(Baklan-K. Rasmussen, Euro Ch, Plovdiv, 2008).
• If [font color="darkred"]8.Nb5 c4[/font] then:
• [font color="darkred"]9.Rb1 Qxc2 10.Qxc2 Bxc2 11.Rb2 Ba4 12.Nc7+[/font] gives White the early advantage(Qin Kanying-Karpov, SX, Beijing, 1998).[/li
• [font color="magenta"]9.Nc7+ Kd8 10.Nxa8 Bxc2 11.Qc1 Bb4+ 12.Bd2[/font] gives White the exchange(Wang Hao-F. Rouhani, IT, Täby, 2007).
[/ul
8.0-0 Qxb2 9.Qe1


• If [font color="red"]9.Nb5 c4 10.Nc7+ Kd7 11.Nxa8 Bxc2[/font] then:
• [font color="red"]12.Qd2 Bb4 13.Rab1 Qxb1 14.Rxb1 Bxd2 15.Rxb7+[/font] gives White a small advantage in space(Ni Hua-S. Ivanov, Russian ChT, Dagomys, 2010).
• If [font color="darkred"]12.Qc1 Ba3[/font] then:
• [font color="darkred"]13.Rb1 Bxb1 14.Qxb2 Bxb2 15.Rxb1 c3 16.Bc1[/font] gives White a small advantage in space(Toamzini-Petrisor, World Jr Ch, Chennai, 2011).
• [font color="magenta"]13.Bg5 h6 14.Qf4 Bf5 15.Rab1 Bxb1 16.Qxf7+ Nge7[/font] Black wins(Shadrina-Gunina, Russian ChW, Moscow, 2011).

9...cxd4


• If [font color="red"]9...c4 10.Rb1 Qxc2 11.Rxb7[/font] then:
• If [font color="red"]11...Bb4 12.Rxb4 Nxb4[/font] then:
• If [font color="red"]13.Bd1 Qd3 14.Ba4+ Kf8 15.Qa1 Bg4 16.Qb2 Rb8 17.Rb1[/font] then:
• [font color="red"]17...Bxf3 18.Bc2 Be2 19.Bxd3 Bxd3 20.a3 Bxb1 21.axb4 Bg6 22.Qa3[/font] gives White only a Queen for two Rooks and a pawn, but Black's kingside isn't likely to be active any time soon(Karjakin-Laznicka, IT, Poikovsky, 2011),
• [font color="burgundy"]17...g5?[/font] then after [font color="burgundy"]18.Ne1! Qg6 19.Qa3 a5 20.Bc2 f5 21.Qxa5[/font] White wins(Sebag-Romanko, Euro ChW, Ganziantep, 2012).
• [font color="darkpink"]13.Qa1 Nxa2 14.Nxa2 Qa4 15.Nc3!? Qxa1 16.Rxa1 Ne7[/font] is equal(Motylev-Alsina Leal, Aeroflot Op, Moscow, 2011).
• If [font color="darkred"]11...Rb8 12.Rxb8+ Nxb8[/font] then:
• [font color="darkred"]13.Qa1 Bb4 14.Rb1 Bxc3 15.Rxb8+ Kd7 16.Qc1 Kc7[/font] is equal(C. Balogh-Michalik, Euro Ch, Aix-les-Bains, 2011).
• [font color="magenta"]13.Bd1 Qb2 14.Ba4+ Nd7 15.Nb5 Qb4 16.Qd1 c3[/font] is equal(D. Klein-Michalik, Op, Groningen, 2011).

10.Bxd4


• [font color="red"]10.Nxd4 Bb4 11.Ndb5 Bxc3 12.Nxc3 Nge7 13.Rb1 Qxc2 14.Rxb7[/font] is equal(Kryvoruchko-Lintchevski, Euro Rpd Ch, Warsaw, 2011).

10...Nxd4 11.Nxd4 Bb4 12.Ndb5!?


• If [font color="red"]12.Rb1 Bxc3 13.Rxb2 Bxe1 14.Rxe1 b6[/font] then:
• [font color="red"]15.Bb5+ Kf8 16.Nxf5 exf5 17.Rb3 Ne7 18.Rc3[/font] gives White a slight advantage(Gashimov-Ivanchuk, IT 1011, Reggio Emilia, 2011).
• If [font color="darkred"]15.h4[/font] then:
• [font color="darkred"]15...h5 16.a4! Ne7 17.a5 Bg6 18.Bb5+ Kf8[/font] continues to give White a slight advantage(Motylev-Belov, Russian ChT, Dagomys, 2010).
• [font color="magenta"]15...h6!? 16.Bb5+! Kf8 17.Nxf5 exf5 18.c4[/font] gives White more piece activity, a safer King and more space; Black has an extra pawn.


[center]BLACK: Daniel Fridman[/center]

[center][/center]

[center]WHITE: Sergey Karjakin[/center][center]Position after 12.Nd4b5[/center]

12...Ba5! (N)


• This freezes White's queenside.
• [font color="red"]12...Bxc3 13.Nxc3[/font] then:
• [font color="red"]13...a6?! 14.Rb1 Qa3 15.Rxb7 Ne7 16.Bb5+[/font] gives White a very comfortable game(Karjakin-Tukhaev, Euro Club Cup, Plovdiv, 2010).
• [font color="darkred"]13...Qxc2 14.Rc1 Qb2 15.Nb5 Kf8 16.Rc7[/font] leaves White slightly better with activity and space in compensation for two pawns.

13.Rb1


• Herr Fridman's novelty is a good one. This is the only move to free White's queenside. The game is equal.

13...Qxc2 14.Rb3


• If [font color="red"]14.Rc1[/font] then:
• If [font color="red"]14...Qb2 15.Nd6+ Kf8 16.Nxf5 exf5 17.Na4[/font] then:
• If [font color="red"]17...Qb4 18.Qxb4+ Bxb4 19.a3 Bxa3[/font] then:
• [font color="red"]20.Ra1 b5 21.Bxb5 Rb8 22.Rfb1 Be7 23.Bc6[/font] remains equal.
• [font color="darkorange"]20.Rc7!? Re8 21.f4 a5 22.Rb1 Bb4[/font] gives Black two extra pawns, of which White will get at least one back; White also has more freedom.
• [font color="magenta"]17...Bxe1 18.Nxb2 Bd2 19.Rc7 Re8 20.Nd3 Re7 21.Rc2[/font] remains equal.
• [font color="darkred"]14...Bxc3!? 15.Qxc3! Qxc3 16.Rxc3 Ne7 17.Nd6+ Kf8 18.Rc7[/font] gives White a small advantage in space.

14...Ne7 15.Nd6+ Kf8 16.Nxb7


• White gets a pawn back.

16...Bb6 17.Nd6 Ba5 18.Bf3


• [font color="red"]18.Qc1 Qxc1 19.Rxc1 Bb6 20.Na4 g5 21.Nxb6 axb6 22.Rxb6[/font] remains equal.

18...Bd3


• [font color="red"]18...h6 19.Qc1 Qxc1 20.Rxc1 g5 21.Rb7 Bg6 22.Ncb5[/font] remains equal.

19.Qc1 Qxc1 20.Rxc1 Ng6?!


• Black attacks White's e-pawn when he should defend his own f-pawn.
• [font color="red"]20...Bg6 21.Rb7 h5 22.Ne2 Rh6 23.Nf4 h4 24.g4[/font] remains equal.

21.Nxd5!

• White has a fair advantage in space; Black continues to have an extra pawn after his reply.

21...Nxe5!?

• The result of this move is a wasted tempo that allows White to bring his Rook to b7.
• [font color="red"]21...exd5 22.Rxd3 Nxe5 23.Rxd5 Nxf3+ 24.gxf3 Bb6 25.a4[/font] continues to give Black a fair advantage in space

[center]BLACK: Daniel Fridman[/center]

[center][/center]

[center]WHITE: Sergey Karjakin[/center][center]Position after 21...Ng6e5:p[/center]

22.Nf4!

• White has an attack against Black's Rook and a substantial advantage in space.

22...Nxf3+ 23.gxf3 Bg6

• In the [font color="red"]variation following Black's 21st move,[/font] the Rook was already safe and Black had time to bring his Bishop to b6.

24.Rb7!

• In the [font color="red"]variation following Black's 21st move,[/font] White could not make this move because the Black Bishop was at b6.

24...Bb6

• If [font color="red"]24...a6?[/font] then White wins after [font color="red"]25.Rc8+! Rxc8 26.Nxc8 Bd2 27.Rd7 Ba5 28.Nd6.[/font]

25.Rc8+ Rxc8 26.Nxc8 Bd4 27.Rb8 Be5?

• Sergey Alexandrovich is apparently still in his home prepartion. What leads us to suspect that without asking either player? Well, we think we're looking at his analysis right now, or something very much like it. The game has has followed Fritz 13's analysis for some time and continues to do so for some time to come. In fact, both players seem to quite familiar with Fritz' analysis. On the other hand, it may not be Fritz, as other engines give something similar. We aren't accusing anybody of anything. Chess players have notoriously good memories. Sergey Alaxandrovich is no doubt capable of memorizing a complecated heep of computer analysis, and that is what we believe he did. There's nothing any more wrong with that than with the quarterback memorizing his playbook.
• If [font color="red"]27...a5 28.Nxg6+ hxg6 29.Nd6+ Ke7 30.Rxh8 Kxd6 31.Rd8+[/font] leaves White with the exchange for a pawn and he will soon win Black's a-pawn.
• We have decided to award this move the dubious? since Fritz analyzes all line from here to a win for White.

[center]BLACK: Daniel Fridman[/center]

[center][/center]

[center]WHITE: Sergey Karjakin[/center][center]Position after 27...Bd4e5[/center]

28.Ra8!

• White will now win the exchange.

28...Bxf4

• Another possibility here, according to Fritz 13, is [font color="red"]28...Bf5 29.Nxe6+ Bxe6 30.Nxa7+ Ke7 31.Rxh8.[/font] Fritz evaluates that as "+- (2.28)." We are apt to translate that from computerese into English as "White wins."

29.Nxa7+ Ke7 30.Rxh8 Kd7

• If [font color="red"]30...Kd6 31.Rc8 Kd7 32.Rc4[/font] then:
• If [font color="red"]32...e5 33.Nb5 Bg5 34.a4[/font] then:
• [font color="red"]34...Bd8 35.Rc5 Ke6 36.f4 f6 37.fxe5 fxe5 38.Rc6+[/font] wins at least a pawn.
• [font color="magenta"]34...Bd2[/font] then White wins easily after [font color="magenta"]35.Rc5 Ke6 36.Rc6+ Ke7 37.Nc3 f6 38.a5.[/font]
• If [font color="darkred"]32...Bc7[/font] then White wins after [font color="darkred"]33.a4 Bb1 34.Rd4+ Ke8 35.Rb4 Bg6 36.Rb7.[/font]

31.Nb5

• Fritz doesn't give this move, but Rybka does and evaluates it as a win for White..

31...Be5 32.a4 Kc6 33.Nc3 Bc2

• If [font color="red"]33...h6 34.Ne4 Bd4 35.Rc8+[/font] then:
• If [font color="red"]35...Kd7[/font] then White wins after [font color="red"]36.Rc4 Bb6 37.Kg2 e5 38.Rc1 f6 39.Nc5+.[/font]
• If [font color="darkred"]35...Kb6[/font] then White wins after [font color="darkred"]36.Kg2 Bf5 37.Rb8+ Kc7 38.Rf8.[/font]
• If [font color="blue"]33...Kb6 34.Ne4[/font] then:
• If [font color="blue"]34...Bc7 35.h4[/font] then:
• If [font color="blue"]35...h6[/font] then White wins after [font color="blue"]36.Rc8 Kb7 37.Rg8 Be5 38.Kf1 Kb6 39.Ke2.[/font]
• If [font color="dodgerblue"]35...Ka5[/font] then White wins after [font color="dodgerblue"]36.Ra8+ Kb4 37.Ng5 Bb6 38.Kg2 h6 39.Rb8.[/font]
• If [font color="darkblue"]34...h6[/font] then White wins after [font color="darkblue"]35.Kg2 Bf5 36.h4 Ka5 37.Ra8+ Kb6 38.Kf1.[/font]

[center]BLACK: Daniel Fridman[/center]

[center][/center]

[center]WHITE: Sergey Karjakin[/center][center]Position after 33...Bg6c2[/center]

34.a5 Bg6

• If [font color="red"]34...Bd3[/font] then White wins after [font color="red"]35.Ne4 Kb5 36.Rf8 Kxa5 37.Rxf7 Kb6 38.Ng5.[/font]

35.Ne4 Kb5

• If [font color="red"]35...Bf4[/font] then White wins after [font color="red"]36.Rc8+ Kb5 37.Ra8 Kc6 38.a6 Kb6 39.Nc3.[/font]

36.Ra8 h6 37.Kg2 f5 38.Nd2 Bd6

• If [font color="red"]38...h5[/font] then White wins after [font color="red"]39.Nb3 h4 40.Rc8 Bf6 41.Rb8+ Ka6 42.Rb6+.[/font]

39.a6 Bf4 40.Nc4

• [font color="red"]40.a7 Kb6 41.Nc4+ Kb7 42.Rg8 Kxa7 43.Rxg7+[/font] wins a piece.
• The rest needs no comment.
[

40...Bh5 41.a7 Ka6 42.Na5 Bc7 43.Rc8 Kxa7 44.Rxc7+ Kb6 45.Rxg7 Kxa5 46.Rh7 1-0

• Herr Fridman resigns.