Event: Round 6: Koster, Ramon - De Winter, Arthur
Date: 2024-12-27
White: Koster, Ramon
WhiteTitle: FM
WhiteElo: 2330
Black: De Winter, Arthur
BlackTitle: IM
BlackElo: 2446
Result: 0-1
ECO: A40
Opening: English Defense
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:58] } 1... e6 { [%eval 0.37] [%clk 1:30:55] } 2. c4 { [%eval 0.16] [%clk 1:29:40] } 2... b6 { [%eval 0.34] [%clk 1:31:16] } 3. e4 { [%eval 0.45] [%clk 1:29:24] } 3... Bb4+ { [%eval 0.4] [%clk 1:31:37] } 4. Bd2 { [%eval 0.42] [%clk 1:27:23] } 4... Bxd2+ { [%eval 0.37] [%clk 1:32:04] } 5. Qxd2 { [%eval 0.37] [%clk 1:26:59] } 5... d5 { [%eval 0.3] [%clk 1:32:32] } 6. Bd3 { [%eval 0.23] [%clk 1:03:44] } 6... Nc6 { [%eval 0.39] [%clk 1:32:49] } 7. Nf3 { [%eval 0.41] [%clk 0:57:51] } 7... dxe4 { [%eval 0.28] [%clk 1:31:54] } 8. Bxe4 { [%eval 0.44] [%clk 0:58:07] } 8... Bb7 { [%eval 0.4] [%clk 1:32:21] } 9. O-O { [%eval 0.25] [%clk 0:43:49] } 9... Nf6 { [%eval 0.24] [%clk 1:31:51] } 10. Bxc6+ { [%eval 0.28] [%clk 0:37:42] } 10... Bxc6 { [%eval 0.24] [%clk 1:32:15] } 11. d5 { [%eval 0.0] [%clk 0:38:06] } 11... Bb7 { [%eval 0.11] [%clk 1:11:20] } 12. Nd4 { [%eval 0.0] [%clk 0:28:50] } 12... Qd7 { [%eval 0.08] [%clk 1:05:40] } 13. Qb4?! { [%eval -0.52] } { Inaccuracy. Nc3 was best. } { [%clk 0:24:20] } 13... O-O-O { [%eval -0.11] [%clk 1:04:24] } 14. Nc3 { [%eval -0.18] [%clk 0:20:47] } 14... Kb8 { [%eval 0.0] [%clk 0:49:13] } 15. Qa3 { [%eval -0.07] [%clk 0:20:23] } 15... exd5 { [%eval -0.02] [%clk 0:48:00] } 16. c5 { [%eval -0.03] [%clk 0:20:19] } 16... bxc5 { [%eval -0.14] [%clk 0:48:00] } 17. Nb3?? { [%eval -2.4] } { Blunder. Qxc5 was best. } { [%clk 0:05:05] } 17... c4 { [%eval -2.51] [%clk 0:46:05] } 18. Nc5 { [%eval -2.46] [%clk 0:05:28] } 18... Qd6?! { [%eval -1.38] } { Inaccuracy. Qc6 was best. } { [%clk 0:38:05] } 19. Nb5 { [%eval -1.25] [%clk 0:04:53] } 19... Qb6 { [%eval -1.3] [%clk 0:38:27] } 20. Nd4?! { [%eval -2.06] } { Inaccuracy. b3 was best. } { [%clk 0:05:06] } 20... Rhe8 { [%eval -2.11] [%clk 0:36:07] } 21. b4 { [%eval -2.17] [%clk 0:03:38] } 21... Ka8 { [%eval -2.31] [%clk 0:35:15] } 22. Rfe1 { [%eval -2.39] [%clk 0:03:23] } 22... Rxe1+ { [%eval -1.99] [%clk 0:31:43] } 23. Rxe1 { [%eval -1.91] [%clk 0:03:51] } 23... Re8 { [%eval -1.64] [%clk 0:29:24] } 24. Rxe8+ { [%eval -1.56] [%clk 0:03:39] } 24... Nxe8 { [%eval -1.54] [%clk 0:29:52] } 25. Qe3 { [%eval -1.5] [%clk 0:03:41] } 25... Nd6 { [%eval -1.28] [%clk 0:29:58] } 26. a3 { [%eval -1.2] [%clk 0:03:33] } 26... a5 { [%eval -0.94] [%clk 0:26:30] } 27. Na4 { [%eval -0.93] [%clk 0:03:35] } 27... Qa7 { [%eval -0.89] [%clk 0:23:24] } 28. b5 { [%eval -0.96] [%clk 0:03:58] } 28... Qb8 { [%eval -0.83] [%clk 0:19:02] } 29. Qc3 { [%eval -1.22] [%clk 0:03:36] } 29... Bc8 { [%eval -1.37] [%clk 0:18:19] } 30. h3 { [%eval -1.88] [%clk 0:00:47] } 30... Bd7? { [%eval -0.56] } { Mistake. Ne4 was best. } { [%clk 0:16:42] } 31. Nc5?? { [%eval -3.21] } { Blunder. Qf3 was best. } { [%clk 0:01:12] } 31... Nxb5 { [%eval -3.22] [%clk 0:16:42] } 32. Nxb5?! { [%eval -4.21] } { Inaccuracy. Qf3 was best. } { [%clk 0:00:34] } 32... Qxb5 { [%eval -4.08] [%clk 0:17:04] } 33. Nxd7 { [%eval -4.85] [%clk 0:00:49] } 33... Qxd7 { [%eval -4.88] [%clk 0:17:28] } 34. Qxa5+ { [%eval -5.23] [%clk 0:01:17] } 34... Kb7 { [%eval -5.09] [%clk 0:17:48] } 35. Qb4+ { [%eval -5.36] [%clk 0:01:42] } 35... Ka6 { [%eval -5.4] [%clk 0:18:08] } 36. a4 { [%eval -5.34] [%clk 0:01:57] } 36... Qc6 { [%eval -5.75] [%clk 0:18:22] } 37. Qd2?! { [%eval -8.42] } { Inaccuracy. Qc3 was best. } { [%clk 0:00:56] } 37... c3 { [%eval -8.49] [%clk 0:18:41] } 38. Qc2 { [%eval -8.45] [%clk 0:01:24] } 38... Qc4 { [%eval -8.06] [%clk 0:18:48] } 0-1