Event: Round 8: Demchenko, Anton - Chatalbashev, Boris
Date: 2024-07-27
White: Demchenko, Anton
WhiteTitle: GM
WhiteElo: 2609
Black: Chatalbashev, Boris
BlackTitle: GM
BlackElo: 2483
Result: 1/2-1/2
ECO: B31
Opening: Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation
Variant: Standard

1. e4 { [%eval 0.15] [%clk 1:40:57] } 1... c5 { [%eval 0.25] [%clk 1:40:55] } 2. Nf3 { [%eval 0.22] [%clk 1:41:23] } 2... Nc6 { [%eval 0.31] [%clk 1:41:20] } 3. Bb5 { [%eval 0.28] [%clk 1:41:30] } 3... g6 { [%eval 0.34] [%clk 1:41:43] } 4. O-O { [%eval 0.26] [%clk 1:41:49] } 4... Bg7 { [%eval 0.32] [%clk 1:42:07] } 5. Re1 { [%eval 0.35] [%clk 1:42:11] } 5... Nf6 { [%eval 0.29] [%clk 1:42:14] } 6. Nc3 { [%eval 0.14] [%clk 1:42:26] } 6... O-O { [%eval 0.09] [%clk 1:41:56] } 7. e5 { [%eval 0.14] [%clk 1:42:51] } 7... Ne8 { [%eval 0.14] [%clk 1:42:16] } 8. Bxc6 { [%eval 0.43] [%clk 1:43:16] } 8... dxc6 { [%eval 0.41] [%clk 1:42:24] } 9. h3 { [%eval 0.39] [%clk 1:43:41] } 9... Nc7 { [%eval 0.37] [%clk 1:42:34] } 10. d3 { [%eval 0.47] [%clk 1:43:07] } 10... Ne6 { [%eval 0.43] [%clk 1:42:42] } 11. a4 { [%eval 0.35] [%clk 1:42:18] } 11... a5 { [%eval 0.44] [%clk 1:42:54] } 12. Ne4 { [%eval 0.38] [%clk 1:41:15] } 12... b6 { [%eval 0.41] [%clk 1:43:12] } 13. Bd2 { [%eval 0.2] [%clk 1:41:24] } 13... f5 { [%eval 0.33] [%clk 1:34:41] } 14. exf6 { [%eval 0.23] [%clk 1:24:27] } 14... exf6 { [%eval 0.39] [%clk 1:34:27] } 15. h4 { [%eval 0.0] [%clk 1:24:53] } 15... h6 { [%eval 0.0] [%clk 1:31:43] } 16. Ng3 { [%eval 0.0] [%clk 1:17:16] } 16... f5 { [%eval 0.25] [%clk 1:30:27] } 17. Nf1 { [%eval 0.05] [%clk 0:57:09] } 17... Kh7 { [%eval 0.05] [%clk 1:12:27] } 18. N1h2 { [%eval -0.1] [%clk 0:53:52] } 18... Bxb2 { [%eval -0.13] [%clk 1:06:28] } 19. Rb1 { [%eval -0.02] [%clk 0:54:21] } 19... Bf6 { [%eval 0.0] [%clk 1:01:20] } 20. Qc1 { [%eval -0.08] [%clk 0:46:27] } 20... g5?! { [%eval 0.96] } { Inaccuracy. Bg7 was best. } { [%clk 0:55:27] } 21. hxg5 { [%eval 0.41] [%clk 0:44:04] } 21... hxg5?! { [%eval 1.16] } { Inaccuracy. Nxg5 was best. } { [%clk 0:55:47] } 22. Ne5? { [%eval -0.48] } { Mistake. Rxe6 was best. } { [%clk 0:44:15] } 22... g4 { [%eval -0.12] [%clk 0:50:05] } 23. Nf1 { [%eval -0.06] [%clk 0:42:32] } 23... Re8? { [%eval 1.05] } { Mistake. Qc7 was best. } { [%clk 0:33:17] } 24. Ng3 { [%eval 1.02] [%clk 0:37:19] } 24... Ng7 { [%eval 0.95] [%clk 0:30:10] } 25. Nc4?! { [%eval -0.12] } { Inaccuracy. Bc3 was best. } { [%clk 0:26:56] } 25... b5 { [%eval -0.11] [%clk 0:28:36] } 26. axb5 { [%eval -0.14] [%clk 0:26:53] } 26... cxb5 { [%eval -0.08] [%clk 0:27:51] } 27. Rxb5 { [%eval -0.14] [%clk 0:27:09] } 27... Rxe1+ { [%eval -0.19] [%clk 0:24:32] } 28. Bxe1 { [%eval -0.19] [%clk 0:20:55] } 28... a4 { [%eval -0.27] [%clk 0:24:47] } 29. Na3?! { [%eval -1.06] } { Inaccuracy. Rxc5 was best. } { [%clk 0:11:02] } 29... Qd5 { [%eval -0.73] [%clk 0:21:44] } 30. Ne2 { [%eval -0.54] [%clk 0:09:47] } 30... Ne6 { [%eval -0.35] [%clk 0:18:03] } 31. Qb1?! { [%eval -1.12] } { Inaccuracy. Nf4 was best. } { [%clk 0:09:17] } 31... f4 { [%eval -0.73] [%clk 0:16:40] } 32. Nc3?! { [%eval -1.63] } { Inaccuracy. c4 was best. } { [%clk 0:03:29] } 32... Bxc3 { [%eval -1.48] [%clk 0:12:53] } 33. Bxc3 { [%eval -1.5] [%clk 0:03:58] } 33... g3? { [%eval 0.0] } { Mistake. Bd7 was best. } { [%clk 0:12:35] } 34. Qe1 { [%eval 0.0] [%clk 0:03:10] } 34... Bd7 { [%eval 0.0] [%clk 0:10:21] } 35. Rb6 { [%eval 0.0] [%clk 0:03:40] } 35... Re8 { [%eval -0.04] [%clk 0:09:06] } 36. Qe4+ { [%eval -0.37] [%clk 0:02:26] } 36... Qxe4 { [%eval -0.4] [%clk 0:09:30] } 37. dxe4 { [%eval -0.35] [%clk 0:02:54] } 37... gxf2+ { [%eval -0.05] [%clk 0:07:46] } 38. Kxf2 { [%eval -0.03] [%clk 0:02:54] } 38... Ng5 { [%eval -0.02] [%clk 0:07:39] } 39. Bb2?! { [%eval -0.87] } { Inaccuracy. Bf6 was best. } { [%clk 0:01:30] } 39... Bg4 { [%eval -0.87] [%clk 0:05:56] } 40. Nc4 { [%eval -1.01] [%clk 0:01:02] } 40... Nxe4+ { [%eval -0.47] [%clk 0:05:45] } 41. Kg1 { [%eval -0.58] [%clk 0:30:29] } 41... Be6?! { [%eval -0.03] } { Inaccuracy. Bd1 was best. } { [%clk 0:24:28] } 42. Ne5 { [%eval -0.11] [%clk 0:24:58] } 42... Re7 { [%eval 0.01] [%clk 0:15:54] } 43. Nd3 { [%eval 0.03] [%clk 0:23:18] } 43... Bc8 { [%eval 0.0] [%clk 0:09:42] } 44. Rb8 { [%eval 0.02] [%clk 0:22:21] } 44... c4 { [%eval 0.0] [%clk 0:08:27] } 45. Nxf4 { [%eval 0.05] [%clk 0:18:32] } 45... Rb7 { [%eval 0.03] [%clk 0:08:02] } 46. Rxb7+ { [%eval 0.0] [%clk 0:18:41] } 46... Bxb7 { [%eval 0.0] [%clk 0:08:30] } 47. Kf1 { [%eval 0.0] [%clk 0:17:17] } 47... c3 { [%eval -0.01] [%clk 0:08:19] } 48. Ba1 { [%eval 0.0] [%clk 0:17:13] } 48... Ba6+ { [%eval 0.02] [%clk 0:05:29] } 49. Ke1 { [%eval 0.0] [%clk 0:17:34] } 49... Bc4 { [%eval 0.0] [%clk 0:05:01] } 50. Ne2 { [%eval 0.0] [%clk 0:16:54] } 50... a3 { [%eval 0.0] [%clk 0:05:02] } 1/2-1/2