Event: Biel Chess Festival 2025
Date: 2025-07-22
White: Ernst, Heinz
WhiteElo: 1790
Black: Leuenberger, Urs
BlackElo: 1859
Result: 1/2-1/2
ECO: D86
Opening: Grünfeld Defense: Exchange Variation, Classical Variation
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:54] } 1... Nf6 { [%eval 0.19] [%clk 1:30:40] } 2. c4 { [%eval 0.18] [%clk 1:31:05] } 2... g6 { [%eval 0.28] [%clk 1:30:53] } 3. Nc3 { [%eval 0.18] [%clk 1:31:09] } 3... d5 { [%eval 0.28] [%clk 1:31:00] } 4. cxd5 { [%eval 0.21] [%clk 1:31:13] } 4... Nxd5 { [%eval 0.17] [%clk 1:31:14] } 5. e4 { [%eval 0.2] [%clk 1:31:28] } 5... Nxc3 { [%eval 0.22] [%clk 1:31:33] } 6. bxc3 { [%eval 0.17] [%clk 1:31:51] } 6... Bg7 { [%eval 0.17] [%clk 1:31:49] } 7. Bc4 { [%eval 0.13] [%clk 1:31:05] } 7... O-O { [%eval 0.16] [%clk 1:31:09] } 8. Ne2 { [%eval 0.24] [%clk 1:30:53] } 8... e6?! { [%eval 0.96] } { Inaccuracy. c5 was best. } { [%clk 1:29:54] } 9. O-O?! { [%eval 0.35] } { Inaccuracy. h4 was best. } { [%clk 1:30:21] } 9... c5 { [%eval 0.46] [%clk 1:28:17] } 10. Be3 { [%eval 0.34] [%clk 1:29:45] } 10... cxd4 { [%eval 0.68] [%clk 1:27:43] } 11. cxd4 { [%eval 0.69] [%clk 1:29:39] } 11... Nc6 { [%eval 0.69] [%clk 1:27:41] } 12. Qd2 { [%eval 0.47] [%clk 1:29:02] } 12... Na5 { [%eval 0.93] [%clk 1:27:03] } 13. Bd3 { [%eval 0.78] [%clk 1:27:03] } 13... b6 { [%eval 0.91] [%clk 1:26:15] } 14. Rac1 { [%eval 0.97] [%clk 1:23:35] } 14... Bb7 { [%eval 0.9] [%clk 1:25:54] } 15. Bh6 { [%eval 0.43] [%clk 1:19:58] } 15... Qd7?! { [%eval 1.48] } { Inaccuracy. Qe7 was best. } { [%clk 1:19:14] } 16. Bxg7 { [%eval 1.59] [%clk 1:18:51] } 16... Kxg7 { [%eval 1.47] [%clk 1:19:32] } 17. Rc3? { [%eval 0.21] } { Mistake. h4 was best. } { [%clk 1:11:42] } 17... Rac8 { [%eval 0.3] [%clk 1:17:39] } 18. Rfc1 { [%eval 0.19] [%clk 1:11:44] } 18... Rxc3 { [%eval 0.29] [%clk 1:17:53] } 19. Rxc3 { [%eval 0.16] [%clk 1:11:44] } 19... Rc8 { [%eval 0.46] [%clk 1:18:04] } 20. f3 { [%eval 0.06] [%clk 1:08:47] } 20... Nc6 { [%eval 0.11] [%clk 1:11:16] } 21. Bb5 { [%eval 0.1] [%clk 1:05:18] } 21... a6 { [%eval 0.21] [%clk 1:09:13] } 22. Bxc6 { [%eval 0.14] [%clk 1:00:50] } 22... Rxc6 { [%eval 0.2] [%clk 1:08:57] } 23. Qc2 { [%eval 0.05] [%clk 0:59:00] } 23... a5 { [%eval 0.0] [%clk 1:04:29] } 24. a3 { [%eval 0.0] [%clk 0:57:49] } 24... Qd6 { [%eval 0.0] [%clk 1:00:33] } 25. Rxc6 { [%eval 0.0] [%clk 0:57:12] } 25... Bxc6 { [%eval 0.0] [%clk 0:59:33] } 26. Qc3 { [%eval 0.0] [%clk 0:56:40] } 26... Kg8 { [%eval 0.0] [%clk 0:55:35] } 27. Kf2 { [%eval 0.0] [%clk 0:55:01] } 27... h5 { [%eval 0.0] [%clk 0:54:43] } 28. h4 { [%eval 0.0] [%clk 0:51:12] } 28... Bb5 { [%eval 0.0] [%clk 0:50:21] } 29. Ng3 { [%eval -0.04] [%clk 0:47:53] } 29... Ba6 { [%eval 0.0] [%clk 0:46:15] } 30. e5 { [%eval 0.0] [%clk 0:45:44] } 30... Qd8 { [%eval 0.0] [%clk 0:45:15] } 31. Qb2? { [%eval -1.5] } { Mistake. Ne4 was best. } { [%clk 0:43:08] } 31... Bb7 { [%eval -1.59] [%clk 0:43:28] } 32. Qc3?? { [%eval -3.76] } { Blunder. Kg1 was best. } { [%clk 0:34:48] } 32... Qxh4 { [%eval -3.54] [%clk 0:42:13] } 33. a4 { [%eval -3.2] [%clk 0:29:07] } 33... Qd8?! { [%eval -2.41] } { Inaccuracy. Kg7 was best. } { [%clk 0:36:46] } 34. Qc4? { [%eval -4.03] } { Mistake. Qb2 was best. } { [%clk 0:24:54] } 34... Qc8?! { [%eval -2.52] } { Inaccuracy. Qd5 was best. } { [%clk 0:32:23] } 35. Qxc8+?! { [%eval -3.77] } { Inaccuracy. Qb3 was best. } { [%clk 0:23:13] } 35... Bxc8 { [%eval -3.97] [%clk 0:32:37] } 36. Ne4 { [%eval -3.72] [%clk 0:22:31] } 36... Kf8 { [%eval -4.12] [%clk 0:30:27] } 37. g3 { [%eval -4.23] [%clk 0:21:07] } 37... Bd7 { [%eval -4.35] [%clk 0:24:55] } 38. Nc3 { [%eval -4.42] [%clk 0:21:16] } 38... Bc6 { [%eval -4.42] [%clk 0:25:10] } 39. f4 { [%eval -5.08] [%clk 0:20:11] } 39... Ke7 { [%eval -5.09] [%clk 0:25:27] } 40. Kg1 { [%eval -5.06] [%clk 0:19:19] } 40... Kd7 { [%eval -4.74] [%clk 0:16:41] } 41. Kf2 { [%eval -4.68] [%clk 0:18:25] } 41... Bd5 { [%eval -4.29] [%clk 0:15:03] } 42. Ke3 { [%eval -4.02] [%clk 0:17:44] } 42... Bc4 { [%eval -3.9] [%clk 0:14:38] } 43. Kd2 { [%eval -3.93] [%clk 0:16:35] } 43... Kc6 { [%eval -3.63] [%clk 0:14:52] } 44. Kc2 { [%eval -3.47] [%clk 0:15:18] } 44... b5?! { [%eval -2.51] } { Inaccuracy. Bd5 was best. } { [%clk 0:15:06] } 45. axb5+ { [%eval -2.44] [%clk 0:14:58] } 45... Bxb5 { [%eval -2.3] [%clk 0:15:24] } 46. Kb3 { [%eval -1.9] [%clk 0:12:54] } 46... Bd3 { [%eval -1.95] [%clk 0:11:25] } 47. Ka4 { [%eval -1.93] [%clk 0:11:17] } 47... Kb6 { [%eval -2.42] [%clk 0:11:26] } 48. Kb3 { [%eval -1.9] [%clk 0:10:51] } 48... Kc6 { [%eval -1.44] [%clk 0:09:19] } 1/2-1/2