Event: Biel Chess Festival 2025
Date: 2025-07-16
White: Stroo, Kees
WhiteElo: 1544
Black: Ulmann, Olivier
BlackElo: 1733
Result: 1/2-1/2
ECO: E37
Opening: Nimzo-Indian Defense: Classical Variation, Noa Variation
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:56] } 1... Nf6 { [%eval 0.19] [%clk 1:30:32] } 2. c4 { [%eval 0.18] [%clk 1:31:01] } 2... e6 { [%eval 0.14] [%clk 1:30:47] } 3. Nc3 { [%eval 0.09] [%clk 1:30:31] } 3... Bb4 { [%eval 0.09] [%clk 1:31:02] } 4. Qc2 { [%eval 0.08] [%clk 1:29:26] } 4... d5 { [%eval 0.15] [%clk 1:30:41] } 5. a3 { [%eval 0.05] [%clk 1:28:19] } 5... Bxc3+ { [%eval 0.1] [%clk 1:29:09] } 6. Qxc3 { [%eval 0.07] [%clk 1:27:21] } 6... Ne4 { [%eval 0.34] [%clk 1:26:47] } 7. Qc2 { [%eval 0.26] [%clk 1:25:00] } 7... O-O { [%eval 0.33] [%clk 1:23:39] } 8. e3 { [%eval 0.4] [%clk 1:22:07] } 8... f5?! { [%eval 1.1] } { Inaccuracy. b6 was best. } { [%clk 1:17:14] } 9. Bd3 { [%eval 0.82] [%clk 1:18:22] } 9... b6 { [%eval 0.92] [%clk 1:09:13] } 10. cxd5 { [%eval 0.97] [%clk 1:14:26] } 10... exd5 { [%eval 0.96] [%clk 1:05:35] } 11. Nf3 { [%eval 0.5] [%clk 1:12:27] } 11... Ba6 { [%eval 0.47] [%clk 1:02:39] } 12. Bxa6 { [%eval 0.5] [%clk 1:07:38] } 12... Nxa6 { [%eval 0.54] [%clk 1:00:38] } 13. O-O { [%eval 0.52] [%clk 1:02:25] } 13... Qd6 { [%eval 0.63] [%clk 0:53:25] } 14. b4 { [%eval 0.49] [%clk 0:57:58] } 14... b5?! { [%eval 1.25] } { Inaccuracy. Rac8 was best. } { [%clk 0:40:17] } 15. Bb2 { [%eval 1.2] [%clk 0:53:12] } 15... Rf6 { [%eval 1.76] [%clk 0:36:24] } 16. Rac1?! { [%eval 0.84] } { Inaccuracy. Ne5 was best. } { [%clk 0:51:47] } 16... Re8?! { [%eval 1.45] } { Inaccuracy. Rc8 was best. } { [%clk 0:30:18] } 17. Ne5 { [%eval 1.47] [%clk 0:50:20] } 17... Ree6? { [%eval 3.04] } { Mistake. Qd8 was best. } { [%clk 0:28:47] } 18. Qe2 { [%eval 2.95] [%clk 0:43:23] } 18... f4?! { [%eval 3.96] } { Inaccuracy. Qd8 was best. } { [%clk 0:18:51] } 19. Qxb5 { [%eval 3.24] [%clk 0:38:29] } 19... f3 { [%eval 3.59] [%clk 0:16:11] } 20. Nxf3?! { [%eval 2.66] } { Inaccuracy. Rc6 was best. } { [%clk 0:36:27] } 20... Rxf3 { [%eval 2.56] [%clk 0:14:21] } 21. gxf3 { [%eval 2.82] [%clk 0:35:21] } 21... Nd2 { [%eval 2.5] [%clk 0:11:58] } 22. Kg2?? { [%eval 0.0] } { Blunder. Rfd1 was best. } { [%clk 0:32:49] } 22... c6 { [%eval 0.0] [%clk 0:01:37] } 23. Qxa6?? { [%eval -5.16] } { Blunder. Qe2 was best. } { [%clk 0:27:06] } 23... Rg6+?? { [%eval 0.0] } { Blunder. Qd7 was best. } { [%clk 0:01:25] } 24. Kh1 { [%eval 0.0] [%clk 0:27:06] } 24... Qf8?? { [%eval 4.42] } { Blunder. Qxh2+ was best. } { [%clk 0:01:14] } 25. f4 { [%eval 4.27] [%clk 0:25:38] } 25... Qe8 { [%eval 4.56] [%clk 0:00:45] } 26. Qe2 { [%eval 4.84] [%clk 0:24:29] } 26... Nxf1 { [%eval 4.74] [%clk 0:00:40] } 27. Rxf1 { [%eval 4.56] [%clk 0:24:23] } 27... Qe6 { [%eval 4.76] [%clk 0:00:40] } 28. Rg1 { [%eval 4.69] [%clk 0:24:15] } 28... Qe4+ { [%eval 4.73] [%clk 0:00:41] } 29. f3 { [%eval 4.95] [%clk 0:24:09] } 29... Rxg1+ { [%eval 4.92] [%clk 0:00:56] } 30. Kxg1 { [%eval 4.9] [%clk 0:24:26] } 30... Qb1+ { [%eval 4.87] [%clk 0:00:50] } 31. Kg2 { [%eval 4.85] [%clk 0:24:06] } 31... Qg6+ { [%eval 4.69] [%clk 0:01:07] } 32. Kf1 { [%eval 4.84] [%clk 0:22:10] } 32... Qb1+ { [%eval 4.83] [%clk 0:01:21] } 33. Kf2 { [%eval 4.8] [%clk 0:21:57] } 33... Qh1 { [%eval 5.25] [%clk 0:01:15] } 34. Kg3 { [%eval 5.23] [%clk 0:21:27] } 34... Qg1+ { [%eval 5.17] [%clk 0:01:17] } 35. Kh3 { [%eval 5.01] [%clk 0:20:12] } 35... Qg6 { [%eval 5.0] [%clk 0:00:41] } 36. Qf2 { [%clk 0:18:18] } 36... Qf5+ { [%clk 0:00:50] } 37. Kg2 { [%clk 0:18:19] } 37... Qg6+ { [%clk 0:01:05] } 38. Qg3 { [%clk 0:17:59] } 38... Qc2+ { [%clk 0:01:21] } 39. Qf2 { [%clk 0:18:16] } 39... Qg6+ { [%clk 0:01:42] } 1/2-1/2