Event: Round 9: Keymer, Vincent - Donchenko, Alexander
Date: 2025-05-23
White: Keymer, Vincent
WhiteTitle: GM
WhiteElo: 2720
Black: Donchenko, Alexander
BlackTitle: GM
BlackElo: 2615
Result: 0-1
ECO: D32
Opening: Tarrasch Defense: Symmetrical Variation
Variant: Standard

1. c4 { [%eval 0.12] [%clk 1:30:56] } 1... c5 { [%eval 0.19] [%clk 1:30:41] } 2. Nf3 { [%eval 0.26] [%clk 1:30:30] } 2... Nf6 { [%eval 0.26] [%clk 1:30:57] } 3. Nc3 { [%eval 0.17] [%clk 1:28:24] } 3... e6 { [%eval 0.25] [%clk 1:29:43] } 4. e3 { [%eval 0.09] [%clk 1:26:22] } 4... d5 { [%eval 0.13] [%clk 1:29:52] } 5. d4 { [%eval 0.08] [%clk 1:24:34] } 5... Nc6 { [%eval 0.0] [%clk 1:29:54] } 6. dxc5 { [%eval -0.06] [%clk 1:23:05] } 6... Bxc5 { [%eval 0.0] [%clk 1:29:56] } 7. a3 { [%eval -0.06] [%clk 1:23:32] } 7... O-O { [%eval 0.0] [%clk 1:24:03] } 8. b4 { [%eval -0.11] [%clk 1:22:43] } 8... Bd6 { [%eval -0.04] [%clk 1:24:08] } 9. Bb2 { [%eval -0.11] [%clk 1:21:41] } 9... a5 { [%eval -0.11] [%clk 1:19:58] } 10. b5 { [%eval -0.04] [%clk 1:21:49] } 10... Ne5 { [%eval -0.04] [%clk 1:19:44] } 11. Na4 { [%eval -0.11] [%clk 1:21:56] } 11... Nxf3+ { [%eval 0.18] [%clk 1:04:07] } 12. gxf3 { [%eval 0.17] [%clk 1:13:37] } 12... e5 { [%eval 0.68] [%clk 1:01:05] } 13. c5 { [%eval 0.66] [%clk 1:09:29] } 13... Bc7 { [%eval 0.8] [%clk 1:00:49] } 14. Rg1 { [%eval 0.72] [%clk 1:03:33] } 14... Re8?! { [%eval 1.31] } { Inaccuracy. Bd7 was best. } { [%clk 0:51:42] } 15. b6 { [%eval 1.35] [%clk 0:47:34] } 15... Bb8 { [%eval 1.28] [%clk 0:52:00] } 16. Bb5 { [%eval 1.25] [%clk 0:47:59] } 16... Bd7 { [%eval 1.18] [%clk 0:51:07] } 17. Qb3 { [%eval 1.28] [%clk 0:48:25] } 17... d4 { [%eval 1.27] [%clk 0:46:27] } 18. O-O-O { [%eval 1.3] [%clk 0:46:56] } 18... Bxb5 { [%eval 1.13] [%clk 0:41:05] } 19. Qxb5 { [%eval 1.26] [%clk 0:46:42] } 19... Qd5 { [%eval 1.22] [%clk 0:41:28] } 20. Rge1 { [%eval 1.18] [%clk 0:28:56] } 20... Rd8? { [%eval 2.58] } { Mistake. Qxf3 was best. } { [%clk 0:33:47] } 21. f4? { [%eval 1.33] } { Mistake. Bxd4 was best. } { [%clk 0:24:39] } 21... d3 { [%eval 1.33] [%clk 0:31:09] } 22. Kb1 { [%eval 1.53] [%clk 0:24:58] } 22... exf4 { [%eval 1.43] [%clk 0:08:33] } 23. e4 { [%eval 1.52] [%clk 0:25:17] } 23... Qe6 { [%eval 1.37] [%clk 0:07:13] } 24. Rxd3?! { [%eval 0.77] } { Inaccuracy. c6 was best. } { [%clk 0:21:14] } 24... Rxd3 { [%eval 0.55] [%clk 0:07:39] } 25. Qxd3 { [%eval 0.72] [%clk 0:21:38] } 25... Be5 { [%eval 0.72] [%clk 0:08:01] } 26. Bxe5 { [%eval 0.65] [%clk 0:20:27] } 26... Qxe5 { [%eval 0.72] [%clk 0:08:30] } 27. Qd6?! { [%eval 0.04] } { Inaccuracy. Rd1 was best. } { [%clk 0:19:36] } 27... Qe8 { [%eval 0.04] [%clk 0:08:00] } 28. c6 { [%eval 0.06] [%clk 0:18:00] } 28... Rd8 { [%eval 0.04] [%clk 0:06:38] } 29. Qc7 { [%eval 0.06] [%clk 0:18:23] } 29... Rc8 { [%eval 0.14] [%clk 0:06:40] } 30. Qxb7 { [%eval 0.31] [%clk 0:13:03] } 30... Rxc6 { [%eval 0.31] [%clk 0:07:08] } 31. Qa7 { [%eval 0.29] [%clk 0:12:32] } 31... Nxe4 { [%eval 0.32] [%clk 0:05:03] } 32. Qxa5 { [%eval 0.23] [%clk 0:10:50] } 32... Qc8 { [%eval 0.23] [%clk 0:01:15] } 33. Qb4 { [%eval 0.2] [%clk 0:04:21] } 33... Rc4?? { [%eval 4.46] } { Blunder. Nd6 was best. } { [%clk 0:00:42] } 34. Qb5?? { [%eval 0.0] } { Blunder. Rxe4 was best. } { [%clk 0:01:10] } 34... Nd6 { [%eval 0.26] [%clk 0:00:33] } 35. Qd5 { [%eval 0.36] [%clk 0:00:34] } 35... Rc6 { [%eval 0.27] [%clk 0:00:47] } 36. Ka2 { [%eval 0.0] [%clk 0:00:34] } 36... h6 { [%eval 0.27] [%clk 0:00:40] } 37. Re7 { [%eval 0.0] [%clk 0:00:39] } 37... Rc2+ { [%eval 0.0] [%clk 0:00:39] } 38. Kb3 { [%eval 0.03] [%clk 0:00:45] } 38... Rc1 { [%eval 0.06] [%clk 0:00:48] } 39. b7?? { [%eval -6.53] } { Blunder. Qd3 was best. } { [%clk 0:00:35] } 39... Qc2+ { [%eval -6.88] [%clk 0:00:55] } 40. Kb4 { [%eval -6.84] [%clk 0:01:04] } 40... Rb1+ { [%eval -6.73] [%clk 0:00:51] } 41. Ka5 { [%eval -6.56] [%clk 0:01:33] } 41... Nc4+ { [%eval -6.7] [%clk 0:30:00] } 42. Qxc4 { [%eval -6.72] [%clk 0:31:41] } 42... Qxc4 { [%eval -7.03] [%clk 0:30:24] } 43. Re8+ { [%eval -6.93] [%clk 0:32:09] } 43... Kh7 { [%eval -6.68] [%clk 0:30:47] } 44. b8=Q { [%eval -6.69] [%clk 0:32:36] } 44... Qd5+ { [%eval -6.83] [%clk 0:30:44] } 45. Ka6 { [%eval -6.77] [%clk 0:32:48] } 45... Rxb8 { [%eval -6.79] [%clk 0:30:57] } 46. Rxb8 { [%eval -6.64] [%clk 0:33:15] } 46... Qd6+ { [%eval -6.43] [%clk 0:31:21] } 0-1