Event: Round 4: Zerfass, Otfried - Heise, Juergen
Date: 2025-01-30
White: Zerfass, Otfried
WhiteElo: 1910
Black: Heise, Juergen
BlackElo: 1931
Result: 0-1
ECO: B23
Opening: Sicilian Defense: Grand Prix Attack
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:57] } 1... c5 { [%eval 0.25] [%clk 1:30:51] } 2. Nc3 { [%eval 0.13] [%clk 1:31:21] } 2... Nc6 { [%eval 0.23] [%clk 1:30:32] } 3. f4 { [%eval -0.09] [%clk 1:31:41] } 3... d6 { [%eval 0.0] [%clk 1:30:42] } 4. Nf3 { [%eval 0.0] [%clk 1:32:04] } 4... Nf6 { [%eval 0.07] [%clk 1:30:55] } 5. Bb5 { [%eval 0.04] [%clk 1:32:15] } 5... Bd7 { [%eval 0.15] [%clk 1:28:57] } 6. O-O { [%eval 0.0] [%clk 1:26:40] } 6... e6 { [%eval 0.1] [%clk 1:26:48] } 7. d3 { [%eval 0.09] [%clk 1:23:45] } 7... Be7 { [%eval 0.17] [%clk 1:26:36] } 8. a4 { [%eval -0.03] [%clk 1:17:33] } 8... Qc7 { [%eval 0.0] [%clk 1:21:29] } 9. Bc4 { [%eval -0.06] [%clk 1:15:15] } 9... h6 { [%eval 0.4] [%clk 1:13:58] } 10. Nb5 { [%eval 0.28] [%clk 1:08:42] } 10... Qb8 { [%eval 0.2] [%clk 1:13:10] } 11. c3 { [%eval -0.12] [%clk 1:08:48] } 11... a6 { [%eval 0.24] [%clk 1:11:35] } 12. Na3?! { [%eval -0.32] } { Inaccuracy. Nxd6+ was best. } { [%clk 1:09:07] } 12... Na5?! { [%eval 0.24] } { Inaccuracy. b5 was best. } { [%clk 1:11:39] } 13. Ba2 { [%eval 0.32] [%clk 1:08:59] } 13... b5 { [%eval 0.15] [%clk 1:11:38] } 14. b4?! { [%eval -0.93] } { Inaccuracy. Qe1 was best. } { [%clk 1:03:12] } 14... Nb7?? { [%eval 1.13] } { Blunder. cxb4 was best. } { [%clk 1:10:58] } 15. Nc2?! { [%eval 0.29] } { Inaccuracy. a5 was best. } { [%clk 1:00:10] } 15... c4? { [%eval 1.52] } { Mistake. bxa4 was best. } { [%clk 1:07:40] } 16. Ncd4?! { [%eval 0.73] } { Inaccuracy. a5 was best. } { [%clk 0:56:07] } 16... e5 { [%eval 0.78] [%clk 0:57:26] } 17. fxe5 { [%eval 0.46] [%clk 0:55:11] } 17... dxe5 { [%eval 0.41] [%clk 0:57:46] } 18. Nf5 { [%eval -0.04] [%clk 0:55:10] } 18... Bxf5 { [%eval 0.0] [%clk 0:57:13] } 19. exf5 { [%eval 0.18] [%clk 0:55:33] } 19... cxd3 { [%eval 0.22] [%clk 0:56:32] } 20. Be3?? { [%eval -2.42] } { Blunder. axb5 was best. } { [%clk 0:49:35] } 20... e4 { [%eval -2.37] [%clk 0:54:36] } 21. Nd4 { [%eval -2.6] [%clk 0:49:37] } 21... Nd6 { [%eval -2.38] [%clk 0:52:38] } 22. Nc6 { [%eval -2.51] [%clk 0:45:25] } 22... Qc7? { [%eval -1.06] } { Mistake. Qb7 was best. } { [%clk 0:52:12] } 23. Nxe7? { [%eval -2.69] } { Mistake. axb5 was best. } { [%clk 0:42:56] } 23... Qxe7 { [%eval -2.52] [%clk 0:52:28] } 24. Bc5?! { [%eval -3.51] } { Inaccuracy. Qd2 was best. } { [%clk 0:41:16] } 24... O-O { [%eval -3.4] [%clk 0:42:31] } 25. Qd2 { [%eval -3.7] [%clk 0:40:21] } 25... Rfd8 { [%eval -3.07] [%clk 0:35:32] } 26. Rae1 { [%eval -3.01] [%clk 0:39:26] } 26... Qd7 { [%eval -2.89] [%clk 0:32:49] } 27. Bd4 { [%eval -3.13] [%clk 0:35:25] } 27... Nde8 { [%eval -3.19] [%clk 0:30:12] } 28. Re3 { [%eval -3.81] [%clk 0:35:10] } 28... Kh7?! { [%eval -2.37] } { Inaccuracy. Qb7 was best. } { [%clk 0:25:04] } 29. Rf4?! { [%eval -3.42] } { Inaccuracy. g4 was best. } { [%clk 0:30:54] } 29... Qc7 { [%eval -2.72] [%clk 0:18:31] } 30. Rh3? { [%eval -4.94] } { Mistake. Rexe4 was best. } { [%clk 0:30:26] } 30... Rxd4 { [%eval -4.76] [%clk 0:16:01] } 31. cxd4 { [%eval -4.73] [%clk 0:30:41] } 31... Rc8 { [%eval -4.63] [%clk 0:15:53] } 32. Rf1 { [%eval -4.58] [%clk 0:29:09] } 32... Qd7 { [%eval -4.56] [%clk 0:15:10] } 33. Rc1?? { [%eval #-13] } { Checkmate is now unavoidable. Qf4 was best. } { [%clk 0:25:19] } 33... Qxd4+ { [%eval -8.79] [%clk 0:14:39] } 34. Qe3? { [%eval #-6] } { Checkmate is now unavoidable. Kf1 was best. } { [%clk 0:22:05] } 34... Rxc1+ { [%eval #-5] [%clk 0:14:35] } 0-1