Event: Round 7: Koehler, Christian Friedrich - Niese, Holger
Date: 2024-11-01
White: Koehler, Christian Friedrich
WhiteElo: 2196
Black: Niese, Holger
BlackElo: 2046
Result: 1-0
ECO: C42
Opening: Petrov's Defense: Classical Attack, Chigorin Variation
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:18:12] } 1... e5 { [%eval 0.21] [%clk 1:30:43] } 2. Nf3 { [%eval 0.13] [%clk 1:17:52] } 2... Nf6 { [%eval 0.34] [%clk 1:31:09] } 3. Nxe5 { [%eval 0.24] [%clk 1:18:04] } 3... d6 { [%eval 0.32] [%clk 1:31:35] } 4. Nf3 { [%eval 0.31] [%clk 1:18:26] } 4... Nxe4 { [%eval 0.35] [%clk 1:32:00] } 5. d4 { [%eval 0.26] [%clk 1:18:52] } 5... d5 { [%eval 0.2] [%clk 1:32:26] } 6. Bd3 { [%eval 0.21] [%clk 1:19:17] } 6... Nc6 { [%eval 0.26] [%clk 1:32:52] } 7. O-O { [%eval 0.2] [%clk 1:19:21] } 7... Be7 { [%eval 0.3] [%clk 1:33:20] } 8. Re1 { [%eval 0.08] [%clk 1:19:17] } 8... Bg4 { [%eval 0.13] [%clk 1:33:44] } 9. c3 { [%eval 0.0] [%clk 1:19:30] } 9... f5 { [%eval 0.0] [%clk 1:34:09] } 10. Qb3 { [%eval 0.02] [%clk 1:19:37] } 10... a6?! { [%eval 0.67] } { Inaccuracy. O-O was best. } { [%clk 1:27:13] } 11. Nfd2 { [%eval 0.33] [%clk 0:57:11] } 11... Nxd2? { [%eval 1.66] } { Mistake. Bh5 was best. } { [%clk 1:02:08] } 12. Bxd2?! { [%eval 0.84] } { Inaccuracy. Nxd2 was best. } { [%clk 0:51:32] } 12... O-O { [%eval 0.98] [%clk 1:02:14] } 13. h3 { [%eval 0.45] [%clk 0:51:07] } 13... Bh5 { [%eval 0.62] [%clk 1:02:34] } 14. Bf4 { [%eval 0.46] [%clk 0:51:05] } 14... b5?! { [%eval 1.11] } { Inaccuracy. g5 was best. } { [%clk 0:55:37] } 15. Nd2 { [%eval 1.1] [%clk 0:49:50] } 15... Qd7 { [%eval 1.36] [%clk 0:53:30] } 16. Qc2 { [%eval 1.15] [%clk 0:45:52] } 16... g5 { [%eval 1.19] [%clk 0:48:35] } 17. Be5 { [%eval 1.13] [%clk 0:46:09] } 17... Rf7?! { [%eval 1.77] } { Inaccuracy. Nxe5 was best. } { [%clk 0:43:51] } 18. f4? { [%eval 0.41] } { Mistake. a4 was best. } { [%clk 0:41:46] } 18... h6? { [%eval 1.71] } { Mistake. Nxe5 was best. } { [%clk 0:43:20] } 19. a4 { [%eval 1.65] [%clk 0:34:51] } 19... Rb8?! { [%eval 2.46] } { Inaccuracy. b4 was best. } { [%clk 0:36:57] } 20. axb5 { [%eval 2.41] [%clk 0:35:12] } 20... axb5 { [%eval 2.4] [%clk 0:37:26] } 21. Ra6 { [%eval 2.57] [%clk 0:32:37] } 21... b4 { [%eval 2.82] [%clk 0:27:32] } 22. c4 { [%eval 2.21] [%clk 0:24:59] } 22... b3 { [%eval 2.33] [%clk 0:26:52] } 23. Nxb3 { [%eval 2.27] [%clk 0:18:49] } 23... Nb4 { [%eval 2.03] [%clk 0:24:56] } 24. Rxh6 { [%eval 3.06] [%clk 0:19:17] } 24... Rh7 { [%eval 2.99] [%clk 0:25:13] } 25. Rxh7 { [%eval 2.74] [%clk 0:17:40] } 25... Nxc2 { [%eval 2.68] [%clk 0:24:15] } 26. Rg7+ { [%eval 2.18] [%clk 0:10:17] } 26... Kf8 { [%eval 2.39] [%clk 0:24:35] } 27. Bxc2 { [%eval 1.44] [%clk 0:10:43] } 27... Bf7?? { [%eval 4.75] } { Blunder. dxc4 was best. } { [%clk 0:15:25] } 28. fxg5 { [%eval 4.58] [%clk 0:11:12] } 28... Rb6?! { [%eval 6.16] } { Inaccuracy. dxc4 was best. } { [%clk 0:06:50] } 29. Rf1 { [%eval 6.37] [%clk 0:09:04] } 29... dxc4 { [%eval 7.42] [%clk 0:02:05] } 30. Bxf5 { [%eval 6.75] [%clk 0:08:30] } 30... Qd5 { [%eval 8.3] [%clk 0:01:27] } 31. Be4 { [%eval 8.02] [%clk 0:07:18] } 31... Qxe4? { [%eval #10] } { Checkmate is now unavoidable. Ke8 was best. } { [%clk 0:01:06] } 32. Rfxf7+ { [%eval #9] [%clk 0:07:34] } 32... Ke8 { [%eval #9] [%clk 0:01:32] } 33. Rxe7+ { [%eval #8] [%clk 0:07:43] } 33... Kf8 { [%eval #8] [%clk 0:01:43] } 34. Nc5 { [%eval #7] [%clk 0:07:23] } 34... Qb1+ { [%eval #7] [%clk 0:00:48] } 35. Kh2 { [%eval #6] [%clk 0:07:48] } 35... Rd6 { [%eval #4] [%clk 0:01:16] } 36. Bxd6 { [%eval #3] [%clk 0:08:07] } 1-0