Event: Round 5: Kemna, Martin - Boersch, Dieter
Site: https://lichess.org/broadcast/sparkassen-chess-trophy-2025--b-open/round-5/UMTHDa5f/yWIDKgQ7
White: Kemna, Martin
WhiteElo: 1933
Black: Boersch, Dieter
BlackElo: 1779
Result: 1-0
ECO: A36
Opening: English Opening: Symmetrical Variation, Botvinnik System
Variant: Standard
TimeControl: 91+10

1. e4 { [%eval 0.18] [%clk 1:31:17] } 1... c5 { [%eval 0.24] [%clk 1:31:18] } 2. c4 { [%eval 0.0] [%clk 1:31:21] } 2... Nc6 { [%eval 0.0] [%clk 1:31:20] } 3. Nc3 { [%eval 0.0] [%clk 1:31:27] } 3... g6 { [%eval 0.0] [%clk 1:31:20] } 4. g3 { [%eval -0.03] [%clk 1:31:33] } 4... Bg7 { [%eval 0.0] [%clk 1:31:24] } 5. Bg2 { [%eval 0.0] [%clk 1:31:39] } 5... d6 { [%eval 0.02] [%clk 1:31:23] } 6. d3 { [%eval -0.04] [%clk 1:31:44] } 6... e6 { [%eval 0.1] [%clk 1:31:20] } 7. Nge2 { [%eval 0.07] [%clk 1:31:50] } 7... Nge7 { [%eval 0.07] [%clk 1:31:20] } 8. Be3 { [%eval -0.11] [%clk 1:31:54] } 8... O-O { [%eval -0.08] [%clk 1:31:09] } 9. Qd2 { [%eval -0.11] [%clk 1:32:00] } 9... Nd4 { [%eval -0.13] [%clk 1:29:07] } 10. h4 { [%eval -0.06] [%clk 1:32:04] } 10... Nec6 { [%eval -0.04] [%clk 1:23:41] } 11. O-O-O { [%eval -0.23] [%clk 1:29:45] } 11... Rb8 { [%eval 0.0] [%clk 1:18:33] } 12. h5?! { [%eval -0.59] } { Inaccuracy. Bh6 was best. } { [%clk 1:24:15] } 12... b5 { [%eval -0.63] [%clk 1:13:01] } 13. cxb5 { [%eval -0.5] [%clk 1:23:19] } 13... Nxb5 { [%eval -0.05] [%clk 1:12:53] } 14. Nxb5 { [%eval -0.5] [%clk 1:17:48] } 14... Rxb5 { [%eval -0.72] [%clk 1:12:53] } 15. d4? { [%eval -2.11] } { Mistake. Nc3 was best. } { [%clk 1:16:15] } 15... cxd4? { [%eval -0.83] } { Mistake. Na5 was best. } { [%clk 1:11:53] } 16. Nxd4 { [%eval -0.61] [%clk 1:15:35] } 16... Nxd4 { [%eval -0.29] [%clk 1:10:15] } 17. Bxd4 { [%eval -0.35] [%clk 1:15:39] } 17... Qc7+?! { [%eval 0.3] } { Inaccuracy. Bxd4 was best. } { [%clk 1:05:35] } 18. Kb1 { [%eval 0.04] [%clk 1:15:26] } 18... Bxd4 { [%eval 0.15] [%clk 0:56:02] } 19. Qxd4 { [%eval 0.29] [%clk 1:15:29] } 19... Qc5 { [%eval 0.63] [%clk 0:55:54] } 20. Qxd6?! { [%eval 0.0] } { Inaccuracy. b3 was best. } { [%clk 1:13:06] } 20... Qxf2 { [%eval 0.0] [%clk 0:55:43] } 21. Rd2 { [%eval -0.03] [%clk 1:13:00] } 21... Qe3 { [%eval 0.08] [%clk 0:53:45] } 22. hxg6 { [%eval 0.21] [%clk 0:57:09] } 22... hxg6?? { [%eval 4.76] } { Blunder. fxg6 was best. } { [%clk 0:53:14] } 23. g4?? { [%eval 2.16] } { Blunder. Rh8+ was best. } { [%clk 0:47:59] } 23... Bb7?? { [%eval 5.05] } { Blunder. Qc3 was best. } { [%clk 0:50:48] } 24. Qh2 { [%eval 5.13] [%clk 0:39:55] } 24... Bxe4+ { [%eval 5.35] [%clk 0:43:40] } 25. Bxe4 { [%eval 5.27] [%clk 0:36:05] } 25... Qxe4+ { [%eval 5.12] [%clk 0:43:49] } 26. Ka1 { [%eval 4.9] [%clk 0:36:02] } 26... Kg7 { [%eval 5.25] [%clk 0:43:27] } 27. Rf2 { [%eval 5.13] [%clk 0:32:19] } 27... f5?? { [%eval #15] } { Checkmate is now unavoidable. Qxh1+ was best. } { [%clk 0:38:11] } 28. Qh7+ { [%eval #14] [%clk 0:30:51] } 28... Kf6 { [%eval #14] [%clk 0:38:13] } 29. g5+ { [%eval #13] [%clk 0:30:31] } 29... Ke5 { [%eval #8] [%clk 0:37:15] } 30. Qg7+ { [%eval #11] [%clk 0:30:22] } 30... Kd5 { [%eval #7] [%clk 0:36:38] } 31. Rd1+ { [%eval #6] [%clk 0:30:25] } 1-0