USA vs China – 2012 World Olympiad – Round 10 – Chess

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2012 World Chess Olympiad, Istanbul Turkey

Round 11

China — USA

GM Liren Ding 2695 — GM Alexander Onischuk 2666

In the penultimate round battle for the Olympic Gold medal today, the USA faced Chuina and the games on Board 1, 2 and 4 ended in draws. The critical moment of the match and indeed the US drive for the Gold occurred on board 3 where Onishuk was defending quite well in a high probability drawn 3 versus 2 rook and pawns ending. In the critical position after White’s 55.g5, Onishuk needed to find the delicate defense 55…fxg5! 56.Rd6+ Kf5 57.Rd5+ Kg6 58.Rxg5+ Kh6! Securing the theoretical draw. Instead his 55….Rh1 (?) allowed white to secure two passed kingside pawns with 56.Rd6! Rxh4 57.f4! followed by 58.Rxf6+ with a technical win for White.

In other action, Poland wiped out Czech Republic 3-1 in spite of GM David Navara’s 24 move win with black against GM Socko. Black sacrificed a pawn, but in the 2R + B endgame mated the white king.

Armenia put a 3-1 whipping on the Netherlands, thanks in part to Board 4 where GM Gabriel Sargissan sacrificed his queen to secure a draw in a Q ending with a two pawn deficit!

Our final action shot is form Hungary’s 4-0 demolition of Denmark. On Board 4, GM Ferenc Berkes delivered a Mike Tyson knockout punch with a queens sacrifice to force resignation.

Interface used: ChessBase

PGN:

[Event “Chess Olympiad”]
[Site “Istanbul TUR”]
[Date “2012.09.07”]
[EventDate “2012.08.28”]
[Round “10.1”]
[Result “1-0”]
[White “Ding Liren”]
[Black “Alexander Onischuk”]
[ECO “D37”]
[WhiteElo “2695”]
[BlackElo “2666”]
[PlyCount “131”]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Bf4 Nf6 5. e3 O-O 6. Nf3 b6
7. Be2 Bb7 8. O-O c5 9. dxc5 bxc5 10. Qb3 Qb6 11. Ne5 Nc6
12. Bf3 Qxb3 13. axb3 Nb4 14. Ra5 Rfc8 15. Rfa1 a6 16. Na4 Nc6
17. Nxc6 Rxc6 18. Bg5 Rc7 19. Bxf6 gxf6 20. cxd5 Bxd5 21. Bxd5
exd5 22. Nb6 Rd8 23. Rxa6 Rc6 24. g3 Kg7 25. Kf1 Rdd6 26. Ra7
Rxb6 27. Rxe7 Rxb3 28. Raa7 Kg6 29. Rxf7 h5 30. Rfb7 Rdb6
31. Rxb6 Rxb6 32. Rc7 Rb5 33. b3 Kf5 34. Ke2 d4 35. exd4 cxd4
36. Rc4 Rxb3 37. Rxd4 Ra3 38. Kf1 Kg6 39. Kg2 Rb3 40. Kh3 Rb2
41. Kg2 Rb3 42. Re4 Ra3 43. Re3 Ra4 44. Kf3 Kg5 45. h3 Kg6
46. Re4 Ra3+ 47. Re3 Ra4 48. h4 Kf5 49. Rb3 Kg6 50. Ke3 Rc4
51. Rd3 Ra4 52. Rd4 Ra2 53. f3 Ra5 54. g4 Ra1 55. g5 Rh1
56. Rd6 Rxh4 57. f4 Rh1 58. Rxf6+ Kg7 59. Rh6 Re1+ 60. Kf2 Rh1
61. Kg2 Rh4 62. Kf3 Rh1 63. Ke4 h4 64. Kf5 h3 65. Kg4 h2
66. Kg3 1-0 t

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