Event: Round 1: Kemna, Martin - Heitmann, Erik
Site: https://lichess.org/broadcast/sparkassen-chess-trophy-2025--b-open/round-1/orTpl2pJ/QYlrydFu
White: Kemna, Martin
WhiteElo: 1933
Black: Heitmann, Erik
BlackElo: 1738
Result: 1-0
ECO: D45
Opening: Semi-Slav Defense: Main Line
Variant: Standard
TimeControl: 91+10

1. c4 { [%eval 0.12] [%clk 1:31:11] } 1... Nf6 { [%eval 0.14] [%clk 1:30:50] } 2. Nc3 { [%eval 0.12] [%clk 1:31:08] } 2... c6 { [%eval 0.29] [%clk 1:30:04] } 3. d4 { [%eval 0.25] [%clk 1:27:13] } 3... d5 { [%eval 0.2] [%clk 1:29:26] } 4. e3 { [%eval 0.12] [%clk 1:26:57] } 4... e6 { [%eval 0.23] [%clk 1:27:35] } 5. Nf3 { [%eval 0.21] [%clk 1:24:43] } 5... Be7 { [%eval 0.25] [%clk 1:25:10] } 6. b3 { [%eval 0.11] [%clk 1:23:39] } 6... O-O { [%eval 0.38] [%clk 1:22:43] } 7. Bd3 { [%eval 0.29] [%clk 1:23:34] } 7... b6 { [%eval 0.41] [%clk 1:19:05] } 8. Qc2 { [%eval 0.04] [%clk 1:23:02] } 8... Na6 { [%eval 0.38] [%clk 1:14:49] } 9. a3 { [%eval 0.35] [%clk 1:16:41] } 9... Bb7 { [%eval 0.49] [%clk 1:13:42] } 10. Qe2?! { [%eval -0.32] } { Inaccuracy. Bb2 was best. } { [%clk 1:15:39] } 10... dxc4?! { [%eval 0.23] } { Inaccuracy. c5 was best. } { [%clk 1:10:35] } 11. Bxc4 { [%eval 0.21] [%clk 1:13:02] } 11... b5 { [%eval 0.31] [%clk 1:06:02] } 12. Bd3 { [%eval 0.29] [%clk 1:12:40] } 12... Nc7 { [%eval 0.47] [%clk 1:02:08] } 13. e4 { [%eval 0.33] [%clk 1:10:42] } 13... a5 { [%eval 0.4] [%clk 0:59:44] } 14. O-O { [%eval 0.47] [%clk 1:07:46] } 14... b4 { [%eval 0.8] [%clk 0:55:05] } 15. axb4 { [%eval 0.88] [%clk 1:07:07] } 15... Bxb4 { [%eval 1.15] [%clk 0:50:33] } 16. Na4 { [%eval 1.11] [%clk 1:05:36] } 16... Na6?? { [%eval 4.13] } { Blunder. Nd7 was best. } { [%clk 0:48:05] } 17. e5 { [%eval 4.09] [%clk 0:58:20] } 17... Nd5 { [%eval 4.13] [%clk 0:39:48] } 18. Bxh7+ { [%eval 4.07] [%clk 0:57:47] } 18... Kh8 { [%eval 4.45] [%clk 0:30:20] } 19. Ng5 { [%eval 4.42] [%clk 0:54:25] } 19... g6?! { [%eval 6.01] } { Inaccuracy. Qxg5 was best. } { [%clk 0:27:22] } 20. Qg4 { [%eval 5.82] [%clk 0:54:17] } 20... Ne7?? { [%eval #4] } { Checkmate is now unavoidable. Kg7 was best. } { [%clk 0:24:42] } 21. Bxg6 { [%eval #5] [%clk 0:52:20] } 21... Nd5 { [%eval #2] [%clk 0:19:59] } 22. Nb2?! { [%eval 11.6] } { Lost forced checkmate sequence. Qh5+ was best. } { [%clk 0:52:19] } 1-0