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In reply to the discussion: Chess (August): Wang Hao sqeeks by Magnus to win Biel [View all]Jack Rabbit
(45,984 posts)21. Yu Yangyi - Vitiugov, General Group/Standard Time Control, Round 5
[center][/center]
[center]Yu Yangyi[/center][font size="1"]Photo by Kgolp76 (http://commons.wikimedia.org/wiki/Special:Search/Kgolp76)Kgolp76] in Wikimedia Commons (http://commons.wikimedia.org/wiki/Category:Chess_players_from_China) (Public Domain)
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Yu Yangyi - Nikita Vitiugov
Team Match, Standard Time Control/Men's Group, Round 5
St Petersburg, 6 July 2012
Open French Game: Nimzo-Winawer Defense (Winckelmann-Riemer Gambit)
1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.a3
- The Winckelmann-Riemer Gambit is very rarely seen and not terribly theoretical.
- For a survey of the Winawer Defense, see Pogrebyssky-Botvinnik, Soviet Ch, Leningrad, 1939.
4...Bxc3+ 5.bxc3 dxe4 6.Qg4
- If [font color="red"]6.f3[/font] then:
- If [font color="red"]6...b6[/font] then:
- If [font color="red"]7.Nh3 Bb7 8.fxe4 Bxe4 9.Ng5 Bg6 10.Bc4[/font] then:
- [font color="red"]10...Nf6 11.Qf3 c6 12.0-0 0-0 13.Bf4 h6[/font] gives Black stronger pawns and White more space (Wellingh-Bosman, TT, 1994).
- [font color="burgundy"]10...h6 11.Qf3 c6 12.Nh3 Nf6 13.0-0 Nbd7[/font] gives Black a small advantage in space (Hamer-Byron, Op, Gibraltar, 2012).
- [font color="darkpink"]7.Be3?! Bb7! 8.Be2 Nf6 9.Nh3 Nbd7 10.0-0 h6[/font] gives Black a fair advantage in space (Hekhuis-Kodentsov, Op, Vlissingen, 2001).
- If [font color="darkred"]6...exf3 7.Nxf3[/font] then:
- If [font color="darkred"]7...Nc6 8.Bd3 Nge7 9.0-0[/font] then:
- If [font color="darkred"]9...0-0? 10.Bxh7+!![/font] then:
- [font color="darkred"]10...Kh8 11.Ng5[/font] Black resigns (Winckelmann-Klatt, Corres, 1989)
- If [font color="purple"]10...Kxh7[/font] then White wins after
- [font color="purple"]11.Ng5+ 11.Ng5[/font] Black resigns (Winckelmann-Klatt, Corres, 1989).
- [font color="hotpink"]11...Kg6 12.Nxf7 Qd5 13.Qg4+ Kh7 14.Qh4+.[/font]
- [font color="darkorange"]9...f6 10.Rb1 0-0 11.a4 Re8 12.Qe2 a5[/font] is equal.
- [font color="magenta"]7...Nd7!? 8.Bd3! Ngf6 9.0-0 0-0 10.Bg5 c6 11.Ne5[/font] gives White a fair advantage in space (D. Gustafson-Penner, Yanofsky Mem, Winnipeg, 2003).
6...Nf6 7.Qxg7 Rg8 8.Qh6 Nbd7
- If [font color="red"]8...Rg6 9.Qd2 b6[/font] then:
- If [font color="red"]10.Bb2 Bb7 11.0-0-0[/font] then:
- If [font color="red"]11...Qe7[/font] then:
- [font color="red"] 12.c4 Nbd7 13.Ne2 0-0-0 14.Nc3 c5 15.d5[/font] is equal (R. Byrne-Sherzer, Op, New York, 1988).
- [font color="burgundy"]12.Qf4 Rg4 13.Qe3 Nbd7 14.c4 0-0-0 15.Ne2 c5[/font] is equal (Neumann-Thompson, Corres, 1989).
- If [font color="darkred"]11...Nbd7 12.Ne2[/font] then:
- [font color="darkred"]12...Qe7 13.Nf4 Rg8[/font] then:
- If [font color="darkred"]14.c4?! 0-0-0![/font] then:
- If [font color="darkred"]15.Be2[/font] then:
- [font color="darkred"]15...Ng4!? 16.Bxg4 Rxg4 17.h3 Rgg8[/font] gives Black a fair advantage (Morky-Matlak, Czech ChT, 1998).
- If [font color="magenta"]15...c5![/font] then:
- [font color="magenta"]16.d5 e5 17.Nh3 Rxg2 18.Qe3 h5[/font] gives Black an extra pawn; White has a protected passer in the center.
- [font color="darkorange"]16.dxc5?! Qxc5! 17.Qe3 e5 18.Qxc5+ Nxc5[/font] gives Black a better center and more space.
- [font color="burgundy"]15.Qe1 Kb8 16.g3 e5 17.Ng2 exd4 18.Rxd4 Nc5[/font] puts Black firmly in the driver's seat (Rellstab-Niephaus, West German Ch, Essen, 1948).
- [font color="darkpink"]14.Be2 Ng4 15.Bxg4 Rxg4 16.Qe3 0-0-0[/font] continues to give Black a small advantage.
- [font color="magenta"]12...c5 13.Nf4 Rg8 14.Bb5 a6 15.Bxd7+ Qxd7 16.c4[/font] is equal (Oettinger-Bluemisch, Krakow, 1938).
- If [font color="darkred"]10.Ne2 Bb7 11.Nf4 Rg8[/font] then:
- [font color="darkred"]12.Bb5+ c6 13.Be2 Nbd7 14.a4 Qc7 15.0-0[/font] gives White a small advantage in space (Chiburdanidze-Voiska, OlW, Thessaloniki, 1984).
- If [font color="magenta"]12.a4!? Nc6![/font] then:
- [font color="magenta"]13.a5?! Nxa5! 14.c4 Qd7 15.Bb2 e5[/font] gives Black a fair advantage in space (Valsecchi-Gireman, World Jr Ch, Chennai, 2011).
- [font color="darkorange"]13.Bb5 Qd7 14.0-0 a6 15.Bxc6 Qxc6[/font] gives Black a small advantage in space.
9.Nh3
- [font color="red"]9.Ne2 c5 10.Ng3 Qc7 11.Qe3 Qc6 12.a4[/font] is equal (Fischer-R. Byrne, US Ch, New York, 1966).
9...c5
- [font color="red"]9...b6 10.Bg5 Rg6 11.Qh4 h6 12.Be3 Qe7 13.Nf4[/font] is equal (Roose-Ambroz, Corres, 1987).
10.a4 (N)
- [font color="red"]10.Be2 Qa5 11.Bd2 Rxg2 12.Ng5 cxd4 13.Qg7[/font] is equal (Ljubojevic-Korchnoi, IT, Tilburg, 1986).
10...cxd4 11.cxd4 Qc7
- The game is equal.
12.Qd2 b6!?
- Black weakens this grip on the long light diagonal.
- [font color="red"]12...Nf8 13.Ra3 Bd7 14.a5 Ng6 15.Rg3 Rd8 16.c4[/font] remains equal.
[center]BLACK: Nikita Vitiugov[/center]
[center][/center]
[center]WHITE: Yu Yangyi[/center][center]Position after 12...b7b6[/center]
13.Ra3!
- White has a slight advantage in space.
13...Nd5!?
- Of course, the Knight can be driven awy from d5 with a timely c2c4.
- If [font color="red"]13...e5?![/font] then:
- [font color="red"]14.Bb5! Bb7 15.Rc3 Qd6 16.dxe5 Qxe5 17.Bb2[/font] gives White a fair advantage in space.
- [font color="darkred"]14.Bb2!? exd4 15.Qxd4 Ke7 16.Bb5 Qc5 17.Nf4[/font] continues to give White a slight advantage in space.
- [font color="blue"]13...Bb7!? 14.Rc3! Qb8 15.Nf4 e5 16.dxe5 Qxe5 17.Bb2[/font] gives White a small advantage in space.
14.Rg3!
- White has a small advantage in space.
14...Rxg3 15.hxg3 N7f6?!
- since there is nothing Black to do to prevent the advance of the c-pawn, he should counter with pressure on the central light squares.
- If [font color="red"]15...Bb7[/font] then:
- [font color="red"]16.Nf4 0-0-0 17.Rxh7 e5 18.Nxd5 Bxd5 19.Bb2[/font] gives White a small advantage in space.
- [font color="darkred"]16.c4!? e3! 17.Qb2 Rc8 18.Nf4 exf2+ 19.Kxf2[/font] is equal.
16.c4!
- White has a comfortable advantage in space.
16...e3?
- This simply loses material.
- If [font color="red"]16...Ba6 17.cxd5 Bxf1 18.Rxf1 Rc8[/font] then:
- [font color="red"]19.Ba3 Nxd5 20.Nf4 Qc4 21.Nxd5 exd5 22.Qb4[/font] gives White a Bishop for a pawn.
- [font color="darkred"]19.Bb2 Nxd5 20.Nf4 Nxf4 21.gxf4 Qc4 22.f5[/font] gives White a Bishop for a pawn.
[center]BLACK: Nikita Vitiugov[/center]
[center][/center]
[center]WHITE: Yu Yangyi[/center][center]Position after 16...e4e3[/center]
17.Qb2!
- White can't just take the pawn as long as the Black Queen is aimed at a hanging Bishop throuvh the pin at c4.
- If [font color="red"]17.fxe3?! Ne4! 18.Qc2 Nxg3 19.Qxh7 Nxh1 20.Qg8+[/font] is equal.
17...Ne7
- If [font color="red"]17...exf2+ 18.Nxf2 Ne7 19.Bf4 Qd7 20.Be2 Neg8[/font] may be more stubborn, but Black is still lost.
- White wins the pawn.
18...Ba6
- Better is [font color="red"]18...Bb7[/font] (keeping the White Bishop at c1) [font color="red"]19.Bf4 Qd7 20.Ng5 Rd8 21.d5,[/font] but the result is no longer in doubt.
19.Bf4 Qd7 20.d5?!
- White's best move here is 20.Ng5, attacking the h-pawn twice.
- If [font color="red"]20.Ng5[/font] then:
- If [font color="red"]20...Qxa4[/font] then White wins after [font color="red"]21.d5 Nfg8 22.dxe6 fxe6 23.Ne4 Rd8 24.Nd6+.[/font]
- If [font color="darkred"]20...h5[/font] then White wins after [font color="darkred"]21.Be5 Nfg8 22.Ne4 Qxa4 23.Nd6+ Kd7 24.Bd3.[/font]
20...Nfg8?
- Black fails to get back in the game.
- If [font color="red"]20...Neg8![/font] then:
- [font color="red"]21.Bg5 Qe7 22.dxe6 Qxe6+ 23.Be2 Bxc4 24.Nf4[/font] presents White some problems. [/font]
- [font color="darkred"]21.Be5 Ng4 22.Nf4 exd5 23.f3 Nxe5 24.Qxe5+[/font] gives White a less lethal advantage over Black.
[center]BLACK: Nikita Vitiugov[/center]
[center][/center]
[center]WHITE: Yu Yangyi[/center][center]Position after 20...Nf6g8[/center]
21.Ng5!
- White has no problems.
21...exd5 22.Rxh7 Bxc4
- If [font color="red"]22...Qxa4[/font] then White wins after [font color="red"]23.Nxf7 dxc4 24.Nd6+ Kd8 25.Nxc4 Bxc4 26.Qd4+.[/font]
23.Nxf7 Qe6+ 24.Be5 Nf6
- Black shortens his agony.
- A more stubborn defense is [font color="red"]24...Bxf1 25.Kxf1 Qg6 26.Nd6+ Kd7 27.Rf7.[/font]
25.Nd6+
- Even more crushing is [font color="red"]25.Ng5 Qc6 26.Bxf6,[/font] winning a piece.
25...Kd7 26.Bxc4 Nxh7 27.Bb5+ Nc6
- If [font color="red"]27...Kd8[/font] then [font color="red"]28.Nb7+ Kc8 29.Qc3+ Nc6 30.Bxc6[/font] leads to mate in a few moves.
28.Bxc6+ Kxc6 29.Qc2+ 1-0
- White wins a piece.
- Nikita Kirillovich resigns.
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