Event: Biel Chess Festival 2025
Date: 2025-07-18
White: Perego, Jonas Gion
WhiteElo: 1792
Black: Trachsel, Peter
BlackElo: 1695
Result: 1-0
ECO: A06
Opening: Nimzo-Larsen Attack: Classical Variation
Variant: Standard

1. Nf3 { [%eval 0.1] [%clk 1:30:55] } 1... d5 { [%eval 0.18] [%clk 1:30:42] } 2. b3 { [%eval -0.02] [%clk 1:31:22] } 2... Bf5 { [%eval 0.01] [%clk 1:30:15] } 3. Bb2 { [%eval 0.0] [%clk 1:31:46] } 3... e6 { [%eval 0.0] [%clk 1:30:04] } 4. e3 { [%eval 0.0] [%clk 1:32:10] } 4... Nd7 { [%eval 0.0] [%clk 1:29:17] } 5. c4 { [%eval 0.0] [%clk 1:32:21] } 5... c6 { [%eval 0.0] [%clk 1:29:00] } 6. Be2 { [%eval 0.0] [%clk 1:32:35] } 6... Ngf6 { [%eval 0.24] [%clk 1:28:50] } 7. O-O { [%eval 0.0] [%clk 1:32:38] } 7... Be7 { [%eval 0.32] [%clk 1:28:44] } 8. d3 { [%eval -0.2] [%clk 1:31:53] } 8... h6 { [%eval -0.03] [%clk 1:26:54] } 9. Nbd2 { [%eval -0.11] [%clk 1:30:57] } 9... O-O { [%eval -0.12] [%clk 1:26:14] } 10. cxd5 { [%eval -0.19] [%clk 1:26:01] } 10... cxd5 { [%eval -0.17] [%clk 1:26:01] } 11. Ne5 { [%eval -0.28] [%clk 1:24:34] } 11... Nxe5 { [%eval -0.33] [%clk 1:22:17] } 12. Bxe5 { [%eval -0.35] [%clk 1:24:59] } 12... Rc8 { [%eval -0.3] [%clk 1:20:40] } 13. Nf3 { [%eval -0.22] [%clk 1:22:45] } 13... Nd7 { [%eval -0.17] [%clk 1:19:27] } 14. Bg3 { [%eval -0.53] [%clk 1:21:45] } 14... Bf6 { [%eval -0.45] [%clk 1:16:16] } 15. d4 { [%eval -0.38] [%clk 1:21:22] } 15... a6 { [%eval -0.31] [%clk 1:12:43] } 16. Qd2? { [%eval -1.5] } { Mistake. Ne1 was best. } { [%clk 1:20:49] } 16... Rc2 { [%eval -1.52] [%clk 1:08:23] } 17. Qd1 { [%eval -1.54] [%clk 1:19:07] } 17... Qb6? { [%eval -0.15] } { Mistake. Qa5 was best. } { [%clk 1:05:50] } 18. Rc1? { [%eval -1.27] } { Mistake. Ne1 was best. } { [%clk 1:14:14] } 18... Rfc8?! { [%eval -0.5] } { Inaccuracy. Rxa2 was best. } { [%clk 1:05:22] } 19. Rxc2 { [%eval -0.62] [%clk 1:13:52] } 19... Rxc2 { [%eval -0.75] [%clk 1:04:19] } 20. Bd3 { [%eval -0.87] [%clk 1:13:28] } 20... Bxd3 { [%eval -0.69] [%clk 1:04:05] } 21. Qxd3 { [%eval -0.64] [%clk 1:13:52] } 21... Rc6?! { [%eval 0.0] } { Inaccuracy. Qc6 was best. } { [%clk 1:00:29] } 22. Qd2 { [%eval -0.04] [%clk 1:05:34] } 22... Qd8 { [%eval 0.0] [%clk 0:58:21] } 23. Rc1 { [%eval 0.06] [%clk 1:04:00] } 23... Qc8 { [%eval 0.06] [%clk 0:58:33] } 24. Rxc6 { [%eval 0.1] [%clk 1:04:15] } 24... Qxc6 { [%eval 0.14] [%clk 0:58:51] } 25. h3 { [%eval 0.0] [%clk 1:03:51] } 25... Be7 { [%eval 0.0] [%clk 0:56:52] } 26. Qa5 { [%eval 0.0] [%clk 0:57:52] } 26... Qc8 { [%eval 0.04] [%clk 0:47:37] } 27. Bc7?? { [%eval -2.63] } { Blunder. Ne1 was best. } { [%clk 0:50:06] } 27... Qf8?? { [%eval 0.02] } { Blunder. b6 was best. } { [%clk 0:41:52] } 28. Qa4 { [%eval 0.0] [%clk 0:48:26] } 28... Qc8 { [%eval 0.0] [%clk 0:42:07] } 29. Qa5?? { [%eval -2.7] } { Blunder. Be5 was best. } { [%clk 0:48:16] } 29... Qf8?? { [%eval 0.07] } { Blunder. b6 was best. } { [%clk 0:42:16] } 30. Ne5 { [%eval 0.0] [%clk 0:44:11] } 30... Nxe5 { [%eval 0.0] [%clk 0:39:57] } 31. dxe5 { [%eval -0.12] [%clk 0:39:08] } 31... Qe8 { [%eval -0.02] [%clk 0:39:16] } 32. Bd6 { [%eval -0.1] [%clk 0:37:24] } 32... Qd7 { [%eval -0.05] [%clk 0:35:36] } 33. Qc5 { [%eval -0.06] [%clk 0:35:45] } 33... Bd8 { [%eval 0.0] [%clk 0:34:11] } 34. Qa7 { [%eval -0.05] [%clk 0:31:54] } 34... Qc8 { [%eval 0.0] [%clk 0:32:01] } 35. a4 { [%eval 0.0] [%clk 0:29:22] } 35... Kh7 { [%eval 0.12] [%clk 0:31:02] } 36. b4 { [%eval -0.38] [%clk 0:28:01] } 36... Kg6 { [%eval 0.0] [%clk 0:20:53] } 37. Qd4 { [%eval -0.03] [%clk 0:24:24] } 37... Kh7 { [%eval 0.0] [%clk 0:20:07] } 38. a5 { [%eval -0.1] [%clk 0:23:10] } 38... Qc4 { [%eval 0.0] [%clk 0:17:10] } 39. Qxc4 { [%eval 0.0] [%clk 0:14:55] } 39... dxc4 { [%eval 0.25] [%clk 0:17:30] } 40. Kf1 { [%eval 0.23] [%clk 0:15:16] } 40... b6?? { [%eval 6.15] } { Blunder. Kg6 was best. } { [%clk 0:17:16] } 41. b5 { [%eval 5.22] [%clk 0:08:02] } 41... bxa5 { [%eval 5.08] [%clk 0:13:55] } 42. bxa6 { [%eval 5.07] [%clk 0:08:24] } 42... Bb6 { [%eval 4.9] [%clk 0:11:34] } 43. Bb8 { [%eval 4.77] [%clk 0:08:45] } 1-0