Event: Biel Chess Festival 2025 MTO
Site: Biel, Switzerland
Date: 2025-07-16
White: von Burg, Carl Alexander
WhiteElo: 1878
Black: Jakob, Simon
BlackElo: 2157
Result: 1-0
ECO: B33
Opening: Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation
Variant: Standard
TimeControl: 100 min 40 moves + 30 min Rest + 30 sec per move

1. e4 { [%eval 0.18] [%clk 1:40:49] } 1... c5 { [%eval 0.25] [%clk 1:40:41] } 2. Nf3 { [%eval 0.2] [%clk 1:41:13] } 2... Nc6 { [%eval 0.3] [%clk 1:40:54] } 3. d4 { [%eval 0.27] [%clk 1:41:37] } 3... cxd4 { [%eval 0.27] [%clk 1:41:15] } 4. Nxd4 { [%eval 0.21] [%clk 1:42:00] } 4... Nf6 { [%eval 0.19] [%clk 1:41:30] } 5. Nc3 { [%eval 0.26] [%clk 1:42:17] } 5... e5 { [%eval 0.34] [%clk 1:41:45] } 6. Ndb5 { [%eval 0.31] [%clk 1:42:32] } 6... d6 { [%eval 0.28] [%clk 1:41:38] } 7. Bg5 { [%eval 0.22] [%clk 1:42:18] } 7... a6 { [%eval 0.3] [%clk 1:41:46] } 8. Na3 { [%eval 0.29] [%clk 1:42:38] } 8... b5 { [%eval 0.26] [%clk 1:42:04] } 9. Nd5 { [%eval 0.34] [%clk 1:42:43] } 9... Be7 { [%eval 0.24] [%clk 1:42:22] } 10. Bxf6 { [%eval 0.16] [%clk 1:42:30] } 10... Bxf6 { [%eval 0.17] [%clk 1:42:36] } 11. c3 { [%eval 0.18] [%clk 1:42:50] } 11... Rb8 { [%eval 0.26] [%clk 1:41:38] } 12. Nc2 { [%eval 0.32] [%clk 1:40:54] } 12... Bg5 { [%eval 0.38] [%clk 1:41:35] } 13. g3 { [%eval 0.21] [%clk 1:41:12] } 13... O-O { [%eval 0.27] [%clk 1:39:46] } 14. h4 { [%eval 0.17] [%clk 1:41:23] } 14... Bh6 { [%eval 0.17] [%clk 1:39:34] } 15. Bh3 { [%eval 0.2] [%clk 1:41:33] } 15... Be6 { [%eval 0.16] [%clk 1:36:02] } 16. Qd3 { [%eval 0.17] [%clk 1:40:16] } 16... Qd7 { [%eval 0.19] [%clk 1:22:40] } 17. Bf5 { [%eval -0.29] [%clk 1:38:31] } 17... Kh8?! { [%eval 0.31] } { Inaccuracy. Bxf5 was best. } { [%clk 1:14:46] } 18. g4 { [%eval 0.0] [%clk 1:24:41] } 18... g6 { [%eval 0.0] [%clk 0:57:46] } 19. Nf6 { [%eval 0.0] [%clk 1:00:00] } 19... Qe7 { [%eval 0.16] [%clk 0:54:11] } 20. g5? { [%eval -1.03] } { Mistake. Bxe6 was best. } { [%clk 0:58:50] } 20... gxf5 { [%eval -1.22] [%clk 0:51:10] } 21. exf5 { [%eval -1.01] [%clk 0:58:47] } 21... Bc4?! { [%eval 0.0] } { Inaccuracy. e4 was best. } { [%clk 0:37:31] } 22. Qf3 { [%eval 0.0] [%clk 0:58:04] } 22... e4?? { [%eval 3.87] } { Blunder. Bg7 was best. } { [%clk 0:36:12] } 23. Qh5 { [%eval 4.02] [%clk 0:56:51] } 23... Rg8 { [%eval 3.94] [%clk 0:28:37] } 24. Nxg8 { [%eval 3.49] [%clk 0:52:29] } 24... Rxg8 { [%eval 3.36] [%clk 0:28:45] } 25. Qxh6 { [%eval 3.32] [%clk 0:52:38] } 25... Ne5 { [%eval 3.28] [%clk 0:27:52] } 26. O-O-O { [%eval 3.31] [%clk 0:40:54] } 26... Nd3+ { [%eval 3.54] [%clk 0:19:13] } 27. Rxd3 { [%eval 3.36] [%clk 0:37:07] } 27... Bxd3 { [%eval 2.99] [%clk 0:18:10] } 28. Ne3 { [%eval 3.37] [%clk 0:36:13] } 28... Qe5 { [%eval 3.29] [%clk 0:17:54] } 29. h5 { [%eval 3.07] [%clk 0:31:58] } 29... Rc8?? { [%eval #9] } { Checkmate is now unavoidable. Rg7 was best. } { [%clk 0:15:54] } 30. f6 { [%eval #8] [%clk 0:24:10] } 30... Rxc3+ { [%eval #7] [%clk 0:15:29] } 31. Kd2 { [%eval #8] [%clk 0:18:22] } 31... Rc2+ { [%eval #8] [%clk 0:15:14] } 32. Nxc2 { [%eval #7] [%clk 0:18:28] } 32... Qf4+ { [%eval #7] [%clk 0:15:29] } 33. Kc3 { [%eval #7] [%clk 0:16:35] } 33... b4+ { [%eval #6] [%clk 0:08:04] } 34. Kb3 { [%eval #5] [%clk 0:07:15] } 34... Bc4+ { [%eval #4] [%clk 0:06:11] } 35. Ka4 { [%eval #3] [%clk 0:07:24] } 35... Bb5+ { [%eval #3] [%clk 0:05:06] } 36. Ka5 { [%eval #2] [%clk 0:07:45] } 1-0