Event: Biel Chess Festival 2025 WT 1
Site: Biel, Switzerland
Date: 2025-07-21
White: Buntschu, Kurt
WhiteElo: 1762
Black: Zhang, Zichen
Result: 1-0
ECO: C09
Opening: French Defense: Tarrasch Variation, Open System, Main Line
Variant: Standard
TimeControl: 60' + 30'' / move

1. e4 { [%eval 0.18] [%clk 1:00:54] } 1... e6 { [%eval 0.28] [%clk 1:00:56] } 2. d4 { [%eval 0.29] [%clk 1:01:20] } 2... d5 { [%eval 0.29] [%clk 1:01:22] } 3. Nd2 { [%eval 0.17] [%clk 1:01:44] } 3... c5 { [%eval 0.17] [%clk 1:01:36] } 4. exd5 { [%eval 0.14] [%clk 1:02:06] } 4... exd5 { [%eval 0.19] [%clk 1:01:56] } 5. Ngf3 { [%eval 0.15] [%clk 1:02:10] } 5... Nc6 { [%eval 0.27] [%clk 1:02:08] } 6. Bb5 { [%eval 0.24] [%clk 1:00:38] } 6... Qb6?! { [%eval 0.8] } { Inaccuracy. Qe7+ was best. } { [%clk 1:02:06] } 7. Qe2+ { [%eval 0.42] [%clk 0:59:16] } 7... Be7?! { [%eval 1.53] } { Inaccuracy. Be6 was best. } { [%clk 1:02:04] } 8. dxc5 { [%eval 2.02] [%clk 0:58:36] } 8... Qxc5 { [%eval 2.18] [%clk 1:00:57] } 9. Nb3 { [%eval 2.11] [%clk 0:57:24] } 9... Qb6 { [%eval 2.37] [%clk 1:00:36] } 10. Be3 { [%eval 2.01] [%clk 0:55:28] } 10... Qc7 { [%eval 2.19] [%clk 1:00:05] } 11. c3?? { [%eval 0.17] } { Blunder. Bd4 was best. } { [%clk 0:54:10] } 11... Nf6 { [%eval 0.21] [%clk 0:59:45] } 12. O-O { [%eval 0.17] [%clk 0:52:29] } 12... O-O { [%eval 0.22] [%clk 0:59:59] } 13. h3 { [%eval 0.2] [%clk 0:52:39] } 13... a6 { [%eval 0.22] [%clk 0:59:37] } 14. Bd3 { [%eval 0.22] [%clk 0:52:49] } 14... h6 { [%eval 0.28] [%clk 0:58:33] } 15. Nbd4 { [%eval 0.12] [%clk 0:49:27] } 15... Bd7 { [%eval 0.37] [%clk 0:55:01] } 16. Rad1 { [%eval 0.18] [%clk 0:45:53] } 16... Rfe8 { [%eval 0.16] [%clk 0:53:45] } 17. Qc2 { [%eval 0.21] [%clk 0:41:56] } 17... Bd6 { [%eval 0.16] [%clk 0:51:57] } 18. Bf5 { [%eval 0.09] [%clk 0:39:04] } 18... Rad8 { [%eval 0.16] [%clk 0:50:21] } 19. Bxd7 { [%eval 0.15] [%clk 0:34:56] } 19... Rxd7 { [%eval 0.11] [%clk 0:50:29] } 20. Nf5 { [%eval 0.04] [%clk 0:33:17] } 20... Bf4 { [%eval 0.15] [%clk 0:48:10] } 21. Bxf4 { [%eval 0.02] [%clk 0:31:10] } 21... Qxf4 { [%eval 0.01] [%clk 0:48:15] } 22. Rfe1 { [%eval -0.07] [%clk 0:25:21] } 22... Rxe1+ { [%eval 0.05] [%clk 0:48:00] } 23. Rxe1 { [%eval 0.09] [%clk 0:23:08] } 23... Rc7 { [%eval 0.11] [%clk 0:46:56] } 24. Qd3 { [%eval 0.1] [%clk 0:22:02] } 24... Rd7 { [%eval 0.26] [%clk 0:41:52] } 25. g3 { [%eval 0.26] [%clk 0:18:11] } 25... Qc7 { [%eval 0.3] [%clk 0:41:29] } 26. N3d4 { [%eval 0.23] [%clk 0:16:44] } 26... Qb6 { [%eval 0.29] [%clk 0:39:45] } 27. b3 { [%eval 0.12] [%clk 0:14:21] } 27... a5 { [%eval 0.43] [%clk 0:39:16] } 28. Kg2 { [%eval 0.21] [%clk 0:13:18] } 28... Qa7?! { [%eval 0.93] } { Inaccuracy. Nxd4 was best. } { [%clk 0:38:23] } 29. Qb5?! { [%eval 0.32] } { Inaccuracy. Qf3 was best. } { [%clk 0:11:47] } 29... Rc7 { [%eval 0.78] [%clk 0:37:09] } 30. Qd3 { [%eval 0.83] [%clk 0:11:04] } 30... Qb8?! { [%eval 1.61] } { Inaccuracy. Nxd4 was best. } { [%clk 0:37:00] } 31. Nb5?! { [%eval 0.5] } { Inaccuracy. Nxc6 was best. } { [%clk 0:06:18] } 31... Rd7 { [%eval 0.71] [%clk 0:36:50] } 32. Qe3 { [%eval 0.48] [%clk 0:05:32] } 32... Kh7 { [%eval 0.54] [%clk 0:36:40] } 33. Qf3 { [%eval 0.28] [%clk 0:04:57] } 33... g6? { [%eval 1.93] } { Mistake. Qd8 was best. } { [%clk 0:35:56] } 34. Nfd4?? { [%eval 0.19] } { Blunder. Nxh6 was best. } { [%clk 0:04:28] } 34... Qc8?? { [%eval 5.23] } { Blunder. Kg7 was best. } { [%clk 0:35:43] } 35. Qxf6 { [%eval 5.32] [%clk 0:04:35] } 35... b6?! { [%eval 8.05] } { Inaccuracy. Qh8 was best. } { [%clk 0:35:32] } 36. Qxc6 { [%eval 8.07] [%clk 0:04:33] } 36... Qxc6 { [%eval 8.08] [%clk 0:35:44] } 37. Nxc6 { [%eval 8.53] [%clk 0:05:01] } 37... Rc7 { [%eval 10.13] [%clk 0:36:07] } 38. Ncd4 { [%eval 7.97] [%clk 0:05:12] } 38... Rc5 { [%eval 7.96] [%clk 0:35:47] } 39. Re7 { [%eval 8.06] [%clk 0:05:18] } 39... Kg8 { [%eval 8.32] [%clk 0:35:26] } 40. Rb7 { [%eval 8.3] [%clk 0:05:38] } 40... Kf8 { [%eval 8.44] [%clk 0:34:59] } 41. Rxb6 { [%eval 8.36] [%clk 0:05:58] } 41... Ke7 { [%eval 9.03] [%clk 0:34:27] } 42. Rc6 { [%eval 9.21] [%clk 0:06:11] } 42... Rxc6 { [%eval 9.29] [%clk 0:34:31] } 43. Nxc6+ { [%eval 9.03] [%clk 0:06:36] } 43... Kd7 { [%eval 9.22] [%clk 0:34:38] } 44. Nxa5 { [%eval 8.86] [%clk 0:06:45] } 1-0