[Event "11th Open"] [Site "Chicago USA"] [Date "2002.05.27"] [Round "7"] [White "Gregory Kaidanov"] [Black "Alexander Onischuk"] [Result "1-0"] [WhiteElo "2616"] [BlackElo "2641"] [Variant "Standard"] [TimeControl "-"] [ECO "E28"] [Opening "Nimzo-Indian Defense: Sämisch Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 { E28 Nimzo-Indian Defense: Sämisch Variation } d6 7. Ne2 e5 8. Ng3 Re8 9. Bd3 e4 10. Bb1 b6 11. f3 Ba6 12. fxe4 Bxc4 13. Qf3 Nbd7 14. Ra2 Bxa2 15. Bxa2 Nf8 16. O-O Ng6 17. Bd2 Qd7?! { (-0.70 → 0.00) Inaccuracy. Rc8 was best. } (17... Rc8) 18. Nf5 Qd8? { (0.00 → 1.68) Mistake. Rxe4 was best. } (18... Rxe4 19. Nxg7 Nf4 20. Bb1 d5 21. exf4 Kxg7 22. f5 Rg8 23. Bxe4 Nxe4 24. Bf4 f6 25. c4) 19. e5 dxe5 20. e4 exd4 21. Nxg7 Ne5?! { (1.23 → 2.30) Inaccuracy. Re5 was best. } (21... Re5 22. Nf5) 22. Qh3 dxc3 23. Bxc3 Kxg7 24. Qg3+ Ng6 25. Bxf6+?! { (2.04 → 1.20) Inaccuracy. h4 was best. } (25. h4) 25... Qxf6 26. Rxf6 Kxf6 27. h4 Re5 28. Qf3+ Kg7 29. h5 f6 30. hxg6 hxg6 31. Qd3 Rae8 32. Qc4 R5e7 33. Qc6 Rxe4 34. Qxc7+ R8e7?! { (1.31 → 2.27) Inaccuracy. R4e7 was best. } (34... R4e7 35. Qc4 Rd8 36. Bb3 Rde8 37. Bc2 Re5 38. Qg4 f5 39. Qd4 Re7 40. Bd3 Kh6 41. Qd8) 35. Qb8 Kh6?! { (2.18 → 3.43) Inaccuracy. f5 was best. } (35... f5 36. Bd5 Re3 37. Kh2 f4 38. Qxf4 R3e5 39. Bc4 b5 40. Bd3 a6 41. Qd4 Kh6 42. Kg3) 36. Qf8+ Kg5 37. Bf7 Rc7?! { (2.77 → 4.24) Inaccuracy. Re1+ was best. } (37... Re1+) 38. Qg7 Rc1+ 39. Kf2 Rc2+? { (4.40 → 10.66) Mistake. Rf4+ was best. } (39... Rf4+ 40. Ke2) 40. Kf3 Rf4+ 41. Ke3 { Black resigns. } 1-0