Event: Round 9 (Top boards): Evgeny Postny - Chao Sun
Date: 2023-09-02
White: Evgeny Postny
WhiteTitle: GM
WhiteElo: 2570
Black: Chao Sun
BlackElo: 2112
Result: 1-0
ECO: D11
Opening: Slav Defense: Quiet Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:55] } 1... d5 { [%eval 0.27] [%clk 1:30:51] } 2. c4 { [%eval 0.29] [%clk 1:31:15] } 2... c6 { [%eval 0.3] [%clk 1:31:12] } 3. Nf3 { [%eval 0.32] [%clk 1:31:31] } 3... Nf6 { [%eval 0.38] [%clk 1:31:31] } 4. e3 { [%eval 0.23] [%clk 1:29:58] } 4... g6 { [%eval 0.57] [%clk 1:31:31] } 5. Nc3 { [%eval 0.61] [%clk 1:29:21] } 5... Bg7 { [%eval 0.55] [%clk 1:31:51] } 6. Be2 { [%eval 0.16] [%clk 1:27:14] } 6... O-O { [%eval 0.52] [%clk 1:30:37] } 7. O-O { [%eval 0.29] [%clk 1:27:39] } 7... dxc4 { [%eval 0.48] [%clk 1:27:17] } 8. Bxc4 { [%eval 0.63] [%clk 1:26:45] } 8... b5 { [%eval 0.45] [%clk 1:27:40] } 9. Bd3 { [%eval 0.43] [%clk 1:20:54] } 9... a5 { [%eval 0.73] [%clk 1:27:55] } 10. e4 { [%eval 0.69] [%clk 1:13:52] } 10... Bg4 { [%eval 0.72] [%clk 1:24:31] } 11. e5 { [%eval 0.85] [%clk 1:12:35] } 11... Nd5 { [%eval 0.63] [%clk 1:24:30] } 12. h3 { [%eval 0.5] [%clk 1:10:42] } 12... Be6?! { [%eval 1.37] } { Inaccuracy. Bxf3 was best. } { [%clk 1:00:36] } 13. Re1?! { [%eval 0.55] } { Inaccuracy. Ng5 was best. } { [%clk 1:06:39] } 13... Na6 { [%eval 0.56] [%clk 0:53:55] } 14. Ng5 { [%eval 0.71] [%clk 0:59:04] } 14... Nxc3 { [%eval 0.88] [%clk 0:54:09] } 15. bxc3 { [%eval 0.86] [%clk 0:59:22] } 15... Bd5?! { [%eval 1.69] } { Inaccuracy. Nc7 was best. } { [%clk 0:54:28] } 16. a4 { [%eval 1.31] [%clk 0:55:01] } 16... Nc7 { [%eval 1.27] [%clk 0:49:34] } 17. Qg4 { [%eval 1.18] [%clk 0:48:06] } 17... h6 { [%eval 1.04] [%clk 0:31:51] } 18. Ne4 { [%eval 0.89] [%clk 0:47:40] } 18... Bc4? { [%eval 2.24] } { Mistake. Bxe4 was best. } { [%clk 0:32:05] } 19. Bxc4 { [%eval 2.13] [%clk 0:45:23] } 19... bxc4 { [%eval 2.22] [%clk 0:32:29] } 20. Qe2 { [%eval 1.8] [%clk 0:44:01] } 20... Nd5 { [%eval 2.29] [%clk 0:18:54] } 21. Qxc4 { [%eval 2.5] [%clk 0:43:58] } 21... Qb6 { [%eval 2.57] [%clk 0:19:15] } 22. Ba3 { [%eval 2.59] [%clk 0:40:24] } 22... Rfb8 { [%eval 2.62] [%clk 0:19:29] } 23. Nc5 { [%eval 2.6] [%clk 0:39:09] } 23... e6 { [%eval 2.55] [%clk 0:18:18] } 24. Qd3 { [%eval 2.57] [%clk 0:38:59] } 24... Qd8 { [%eval 2.56] [%clk 0:17:56] } 25. Ne4 { [%eval 2.62] [%clk 0:30:13] } 25... Bf8 { [%eval 2.38] [%clk 0:13:58] } 26. Bxf8 { [%eval 2.52] [%clk 0:29:42] } 26... Kxf8 { [%eval 2.59] [%clk 0:12:28] } 27. Rab1 { [%eval 2.41] [%clk 0:23:12] } 27... Rxb1 { [%eval 2.42] [%clk 0:10:46] } 28. Rxb1 { [%eval 2.19] [%clk 0:23:38] } 28... Rb8 { [%eval 2.05] [%clk 0:11:09] } 29. Nd6 { [%eval 2.33] [%clk 0:23:04] } 29... Rxb1+ { [%eval 2.63] [%clk 0:07:33] } 30. Qxb1 { [%eval 2.56] [%clk 0:23:30] } 30... Qb6 { [%eval 2.58] [%clk 0:07:47] } 31. Qc1 { [%eval 2.7] [%clk 0:16:46] } 31... g5 { [%eval 2.77] [%clk 0:07:16] } 32. Qc2 { [%eval 2.53] [%clk 0:13:30] } 32... Kg8 { [%eval 3.02] [%clk 0:05:19] } 33. g3 { [%eval 2.86] [%clk 0:11:58] } 33... c5 { [%eval 3.13] [%clk 0:02:34] } 34. c4 { [%eval 3.12] [%clk 0:10:48] } 34... Ne7 { [%eval 3.52] [%clk 0:00:40] } 35. Qe4 { [%eval 3.44] [%clk 0:06:27] } 35... Qc6 { [%eval 3.39] [%clk 0:00:55] } 36. Qb1 { [%eval 3.11] [%clk 0:05:23] } 36... cxd4 { [%eval 3.27] [%clk 0:00:33] } 37. Qb8+ { [%eval 3.54] [%clk 0:05:19] } 37... Kg7 { [%eval 3.21] [%clk 0:00:55] } 38. Qa7 { [%eval 3.52] [%clk 0:05:11] } 38... Kf8 { [%eval 3.44] [%clk 0:01:21] } 39. Qxa5 { [%eval 3.93] [%clk 0:04:41] } 39... Qd7 { [%eval 3.77] [%clk 0:00:39] } 40. Qb5?! { [%eval 2.82] } { Inaccuracy. Qa8+ was best. } { [%clk 0:30:55] } 40... Nc6 { [%eval 2.83] [%clk 0:30:45] } 41. c5 { [%eval 3.22] [%clk 0:25:21] } 41... Qc7 { [%eval 2.88] [%clk 0:24:32] } 42. Qa6 { [%eval 2.99] [%clk 0:21:50] } 42... Qd7 43. f4 { [%clk 0:21:50] } 43... gxf4 44. gxf4 { [%clk 0:21:50] } 44... Ne7 45. Qa8+ { [%clk 0:21:50] } 45... Kg7 46. Ne8+ { [%clk 0:21:50] } 1-0