Event: Round 4: Aleksandr Ostrovskiy - Hans Niemann
Date: 2021-06-18
White: Aleksandr Ostrovskiy
WhiteTitle: IM
Black: Hans Niemann
BlackTitle: GM
Result: 0-1
ECO: A13
Opening: English Opening: Agincourt Defense
Variant: Standard

1. c4 { [%eval 0.2] [%clk 1:10:37] } 1... e6 { [%eval 0.2] [%clk 1:25:31] } 2. Nc3 { [%eval 0.05] [%clk 1:09:50] } 2... d5 { [%eval 0.05] [%clk 1:25:31] } 3. e3 { [%eval 0.04] [%clk 1:10:07] } 3... a6 { [%eval 0.26] [%clk 1:23:36] } 4. Nf3 { [%eval 0.23] [%clk 1:08:25] } 4... Nf6 { [%eval 0.16] [%clk 1:21:11] } 5. b3 { [%eval 0.11] [%clk 1:07:18] } 5... b6 { [%eval 0.34] [%clk 1:20:13] } 6. Bb2 { [%eval 0.2] [%clk 1:06:54] } 6... Bb7 { [%eval 0.37] [%clk 1:16:24] } 7. Rc1 { [%eval 0.0] [%clk 1:05:56] } 7... Nbd7 { [%eval 0.0] [%clk 1:15:42] } 8. cxd5 { [%eval -0.08] [%clk 1:03:56] } 8... exd5 { [%eval -0.2] [%clk 1:15:57] } 9. Ne2 { [%eval -0.13] [%clk 1:03:42] } 9... g6?! { [%eval 0.42] } { Inaccuracy. c5 was best. } { [%clk 1:13:18] } 10. g3 { [%eval 0.38] [%clk 0:56:49] } 10... Bd6 { [%eval 0.45] [%clk 1:10:51] } 11. Bg2 { [%eval 0.5] [%clk 0:55:03] } 11... O-O { [%eval 0.35] [%clk 1:10:56] } 12. O-O { [%eval 0.65] [%clk 0:54:28] } 12... Qe7 { [%eval 0.62] [%clk 1:10:38] } 13. Rc2 { [%eval 0.32] [%clk 0:51:16] } 13... Rfe8 { [%eval 0.21] [%clk 1:08:42] } 14. Qa1 { [%eval 0.17] [%clk 0:49:56] } 14... Rad8 { [%eval 0.31] [%clk 1:03:45] } 15. Rfc1 { [%eval 0.09] [%clk 0:45:19] } 15... c5 { [%eval 0.07] [%clk 1:02:46] } 16. d4 { [%eval 0.26] [%clk 0:40:31] } 16... Ne4 { [%eval 0.33] [%clk 1:03:01] } 17. Nf4 { [%eval -0.07] [%clk 0:33:04] } 17... c4 { [%eval 0.0] [%clk 1:01:57] } 18. bxc4? { [%eval -1.23] } { Mistake. Ne5 was best. } { [%clk 0:15:09] } 18... dxc4 { [%eval -1.0] [%clk 1:02:17] } 19. Ne5?! { [%eval -2.1] } { Inaccuracy. Rxc4 was best. } { [%clk 0:09:27] } 19... b5 { [%eval -2.11] [%clk 1:00:16] } 20. Nxd7 { [%eval -2.09] [%clk 0:09:21] } 20... Rxd7 { [%eval -1.68] [%clk 0:55:56] } 21. d5?! { [%eval -2.38] } { Inaccuracy. a3 was best. } { [%clk 0:03:41] } 21... Be5? { [%eval -1.19] } { Mistake. Bxf4 was best. } { [%clk 0:56:07] } 22. Bxe5 { [%eval -1.69] [%clk 0:01:42] } 22... Qxe5 { [%eval -1.74] [%clk 0:56:35] } 23. Qxe5 { [%eval -1.9] [%clk 0:01:38] } 23... Rxe5 { [%eval -1.98] [%clk 0:56:59] } 24. f3 { [%eval -1.75] [%clk 0:01:39] } 24... Nc5 { [%eval -1.96] [%clk 0:56:29] } 25. e4 { [%eval -1.76] [%clk 0:01:54] } 25... f5 { [%eval -1.79] [%clk 0:56:53] } 26. Rb1 { [%eval -2.01] [%clk 0:00:47] } 26... Kf8 { [%eval -1.78] [%clk 0:55:31] } 27. a4?! { [%eval -3.0] } { Inaccuracy. Ne2 was best. } { [%clk 0:00:36] } 27... Nxa4 { [%eval -3.19] [%clk 0:55:17] } 28. Ne6+ { [%eval -3.39] [%clk 0:01:03] } 28... Ke7 { [%eval -3.58] [%clk 0:55:25] } 29. f4?! { [%eval -4.9] } { Inaccuracy. Nd4 was best. } { [%clk 0:01:28] } 29... Rxe4 { [%eval -4.61] [%clk 0:55:51] } 30. Bxe4 { [%eval -4.83] [%clk 0:01:54] } 30... fxe4 { [%eval -5.13] [%clk 0:56:16] } 31. Ng5 { [%eval -5.03] [%clk 0:01:38] } 31... Bxd5 { [%eval -5.17] [%clk 0:56:39] } 32. Nxh7 { [%eval -5.16] [%clk 0:01:48] } 32... c3 { [%eval -5.33] [%clk 0:56:27] } 33. Ng5 { [%eval -5.47] [%clk 0:02:07] } 33... Bc4 { [%eval -5.0] [%clk 0:56:39] } 34. Re1 { [%eval -5.19] [%clk 0:02:09] } 34... Bd3 { [%eval -5.05] [%clk 0:56:42] } 35. Rcc1 { [%eval -4.98] [%clk 0:02:29] } 35... Rd4 { [%eval -5.41] [%clk 0:56:57] } 36. Nf3 { [%eval -6.07] [%clk 0:02:49] } 36... Rd5 { [%eval -6.64] [%clk 0:57:13] } 37. Ne5 { [%eval -6.63] [%clk 0:03:11] } 37... Rxe5 { [%eval -7.12] [%clk 0:56:46] } 38. fxe5 { [%eval -7.08] [%clk 0:03:38] } 38... b4 { [%eval -6.69] [%clk 0:57:10] } 39. Ra1 { [%eval -7.21] [%clk 0:02:53] } 39... Nb6 { [%eval -6.55] [%clk 0:57:36] } 40. Kf2 { [%eval -7.15] [%clk 0:02:28] } 40... b3?! { [%eval -4.64] } { Inaccuracy. Ke6 was best. } { [%clk 0:57:24] } 41. Ra3 { [%eval -4.2] [%clk 0:02:54] } 41... Bc4?! { [%eval -3.23] } { Inaccuracy. Bc2 was best. } { [%clk 0:56:16] } 42. Ke3 { [%eval -3.19] [%clk 0:26:16] } 42... a5 { [%eval -3.51] [%clk 1:26:38] } 43. Rxa5 { [%eval -3.58] [%clk 0:20:08] } 43... b2 { [%eval -3.96] [%clk 1:26:08] } 44. Ra7+ { [%eval -4.01] [%clk 0:18:10] } 44... Ke8 { [%eval -4.11] [%clk 1:26:04] } 45. Kxe4 { [%eval -4.12] [%clk 0:18:07] } 45... c2 { [%eval -4.07] [%clk 1:26:24] } 46. Raa1 { [%eval -4.13] [%clk 0:18:34] } 46... Ba2 { [%eval -4.1] [%clk 1:26:35] } 47. Kf4? { [%eval -10.51] } { Mistake. Rac1 was best. } { [%clk 0:18:47] } 47... bxa1=Q { [%eval -10.77] [%clk 1:26:52] } 48. Rxa1 { [%eval -10.71] [%clk 0:19:15] } 48... Bb1 { [%eval -10.92] [%clk 1:27:15] } 0-1