Hao Wang vs Hua Ni (2009)

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Hao Wang vs Hua Ni
Chinese Championship (2009), Xinghua Jiangsu CHN, rd 2, May-27
Slav Defense: Czech. Carlsbad Variation (D17) · 1-0

White to move.

ANALYSIS [x]

1-0

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

FEN COPIED

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May-31-09		DeepFriedLiver: At first I thought black resigned because after 28...Rh8, 29. Rg1 traps the queen. However, the real threat is mate in 4: 29. Qa5+ Kb8 30. Nd7+ Kc8 31. Qa8+ Kc7 32. Qb8# So 28...Rh8 is unplayable. Black can play 28...Bc5 to stop the mate threat, but the subsequent material loss is decisive. Crushing win by Wang Hao.

Jun-02-09		Mateo: Ni Hua position collapsed after 23...Ne6? allowing White to win the a5 pawn. Maybe he thought he could win the g4 pawn but he miscalculated as Wang Hao showed.

Jun-03-09		Andrijadj: Pun for the game:Only Fools and Horses

Jun-04-09		pulsar: [Event "Chinese Championship"] [Site "Xinghua Jiangsu CHN"] [Date "2009.05.27"] [EventDate "2009.05.26"] [Round "2"] [Result "1-0"] [White "Wang Hao"] [Black "Ni Hua"] [ECO "D17"] [WhiteElo "2696"] [BlackElo "2724"] [PlyCount "56"] 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Qc7 <7...♘b6 is also played here, but the variation seems to be on the losing side of late. One of the latest discussion of this line happened in Topalov-Wang Yue, M-Tel Masters 2009: 8. ♘e5 a5 9. f3 ♘fd7 10. e4 ♘xe5 11. dxe5 ♕xd1+ 12. ♔xd1 ♗e6 13. ♔c2 f6 14. ♖b1 ♘d7 15. b4 ♘xe5 16. bxa5 ♗c8 17. a6 and Topalov played energetically and went on to win.> 8. g3 e5 9. dxe5 Nxe5 10. Bf4 Nfd7 11. Bg2 g5 12. Ne3 <Bu Xiangzhi played 12.♗xe4 against Ni Hua in round 4 of the same tournament-the game ended amicably.> gxf4 13. Nxf5 O-O-O 14. Qc2 Nc5 15. O-O fxg3 16. hxg3 a5 <Black doesn't want White to push with a5-a6...> 17. Rfd1 <Taking the center.> h5 18. Rxd8+ Qxd8 19. Rd1 Qf6 20. Bh3 <Before this move, both players have followed previous games found in CG database. I don't know if the text move is new. In Ivanchuk-Gelfand, Russian Team Championship 2005, Ivanchuk continued with 20. e4 but lost the game later: 20...h4 21. f4 ♘g6 22. e5 ♕e6 23. ♘d6+ ♗xd6 24. ♖xd6 ♕c4 25. ♗f1 ♕b4 26. ♘a2 ♕b6 27. ♔h2 hxg3+ 28. ♔xg3 ♘e6 29. ♕f2 ♕xf2+ 30. ♔xf2 ♘gxf4, etc. The texmove prevents Black's h4 for the time being.> Kb8 <Removing the king from danger and threatening to continue with h4.> 21. Qd2 <I find it difficult to fully evaluate the lines behind this move, except that, outright, it improved the position of White's Queen.> h4 22. g4 <Rejecting the exchange and closing the position.> Rg8 <Black's Rook takes on a new target on the g-file.> 23. Kh1 <Avoiding danger.Not 23.f3? Qxf5> Ne6? <Perhaps 23...b6 is better, supporting the a-pawn: 24.Qd8+ Qxd8 25.Rxd8+ Kc7 26.Re8, etc. But not 23...Nxg4 24.Bxg4 Rxg4 25.Qd8+ Qxd8 26.Rxd8 losing a piece.> 24. Ne4 Qg6 25. Qxa5 <The a-pawn goes.> Nxg4 26.f3 <26.Bxg4 Qxg4 27.Qe5+ Nc7 28.Rd8+ Ka7 and Black escapes and threatens mate.> Nh6 <No other retreat square.> 27. Qe5+ Ka7 <Nc7 no longer works here as the g2 square is guarded by White's light-squared bishop.> 28. Nf6 <The final blow. White threatens mate and Black will have to give up materials to prevent its immediate execution.> 1-0

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