Event: Biel Chess Festival 2025 WT 1
Site: Biel, Switzerland
Date: 2025-07-25
White: Zhang, Zichen
Black: Robert-Grandpierre, Christian
BlackElo: 1543
Result: 0-1
ECO: B07
Opening: Pirc Defense: Kholmov System
Variant: Standard
TimeControl: 60' + 30'' / move

1. e4 { [%eval 0.18] [%clk 1:00:59] } 1... d6 { [%eval 0.43] [%clk 1:00:48] } 2. d4 { [%eval 0.43] [%clk 1:01:16] } 2... Nf6 { [%eval 0.43] [%clk 1:01:02] } 3. Nc3 { [%eval 0.38] [%clk 1:01:35] } 3... g6 { [%eval 0.63] [%clk 1:01:21] } 4. Bc4 { [%eval 0.17] [%clk 1:01:29] } 4... Bg7 { [%eval 0.15] [%clk 1:01:35] } 5. Nf3 { [%eval 0.19] [%clk 1:01:54] } 5... O-O { [%eval 0.15] [%clk 1:01:47] } 6. Be3 { [%eval 0.01] [%clk 1:01:39] } 6... c6 { [%eval 0.17] [%clk 1:01:22] } 7. Qd2 { [%eval 0.0] [%clk 1:00:37] } 7... Qa5 { [%eval 0.46] [%clk 0:58:19] } 8. O-O-O? { [%eval -1.12] } { Mistake. a3 was best. } { [%clk 1:00:33] } 8... b5 { [%eval -1.04] [%clk 0:56:10] } 9. Bb3? { [%eval -2.38] } { Mistake. Bd3 was best. } { [%clk 0:59:54] } 9... b4 { [%eval -2.2] [%clk 0:53:35] } 10. Ne2 { [%eval -2.75] [%clk 1:00:09] } 10... Nxe4 { [%eval -2.67] [%clk 0:52:30] } 11. Qd3 { [%eval -2.93] [%clk 1:00:01] } 11... Nf6?! { [%eval -2.01] } { Inaccuracy. Bf5 was best. } { [%clk 0:51:02] } 12. Ng3?! { [%eval -2.7] } { Inaccuracy. h4 was best. } { [%clk 0:54:41] } 12... Qc7?? { [%eval -0.72] } { Blunder. Nbd7 was best. } { [%clk 0:49:17] } 13. Bd2?? { [%eval -2.88] } { Blunder. h4 was best. } { [%clk 0:53:33] } 13... a5 { [%eval -2.84] [%clk 0:49:25] } 14. h4 { [%eval -2.85] [%clk 0:53:31] } 14... h5?? { [%eval 1.45] } { Blunder. d5 was best. } { [%clk 0:43:02] } 15. Qxg6?? { [%eval -2.82] } { Blunder. Bxf7+ was best. } { [%clk 0:49:19] } 15... d5 { [%eval -2.52] [%clk 0:42:41] } 16. Qd3?! { [%eval -3.49] } { Inaccuracy. Qg5 was best. } { [%clk 0:52:06] } 16... a4 { [%eval -3.52] [%clk 0:42:00] } 17. Bxb4 { [%eval -3.38] [%clk 0:48:45] } 17... axb3 { [%eval -3.32] [%clk 0:41:24] } 18. Qxb3 { [%eval -3.53] [%clk 0:48:50] } 18... Bg4 { [%eval -3.42] [%clk 0:36:23] } 19. a3 { [%eval -4.02] [%clk 0:46:48] } 19... Re8 { [%eval -3.28] [%clk 0:36:00] } 20. Rde1 { [%eval -3.95] [%clk 0:45:24] } 20... Na6 { [%eval -4.08] [%clk 0:29:52] } 21. Bd2 { [%eval -3.86] [%clk 0:37:22] } 21... c5 { [%eval -3.97] [%clk 0:28:11] } 22. dxc5 { [%eval -4.78] [%clk 0:44:05] } 22... Nxc5 { [%eval -6.01] [%clk 0:25:33] } 23. Qc3 { [%eval -6.36] [%clk 0:43:44] } 23... Nfe4 { [%eval -6.24] [%clk 0:20:19] } 24. Qe3 { [%eval -6.59] [%clk 0:42:48] } 24... Qb7 { [%eval -6.29] [%clk 0:17:10] } 25. Nxe4?! { [%eval -9.99] } { Inaccuracy. b4 was best. } { [%clk 0:41:50] } 25... Qxb2+ { [%eval -9.63] [%clk 0:15:41] } 26. Kd1 { [%eval -9.01] [%clk 0:41:31] } 26... Nxe4 { [%eval -7.59] [%clk 0:15:32] } 27. Bc1 { [%eval -7.43] [%clk 0:41:32] } 27... Qc3 { [%eval -6.5] [%clk 0:11:18] } 28. Qxc3 { [%eval -6.51] [%clk 0:41:00] } 28... Nxc3+ { [%eval -6.26] [%clk 0:11:42] } 29. Kd2 { [%eval -6.34] [%clk 0:41:17] } 29... Ne4+ { [%eval -6.17] [%clk 0:11:57] } 30. Ke3 { [%eval -6.66] [%clk 0:41:22] } 30... Bc3 { [%eval -5.93] [%clk 0:10:42] } 31. Rd1 { [%eval -5.78] [%clk 0:41:36] } 31... e6 { [%eval -5.7] [%clk 0:10:34] } 32. Kd3 { [%eval -6.92] [%clk 0:39:50] } 32... Rec8 { [%eval -6.48] [%clk 0:10:23] } 33. Rdf1 { [%eval -7.88] [%clk 0:39:35] } 33... Bf6 { [%eval -7.06] [%clk 0:09:40] } 34. g3? { [%eval #-5] } { Checkmate is now unavoidable. Re1 was best. } { [%clk 0:38:56] } 34... Bxf3 { [%eval #-4] [%clk 0:09:42] } 35. Rhg1 { [%eval #-1] [%clk 0:38:59] } 35... Be7 { [%eval #-4] [%clk 0:09:18] } 36. Bb2 { [%eval #-4] [%clk 0:38:55] } 36... Bxa3? { [%eval -7.76] } { Lost forced checkmate sequence. Rxa3+ was best. } { [%clk 0:09:06] } 37. Bxa3? { [%eval #-4] } { Checkmate is now unavoidable. Bd4 was best. } { [%clk 0:39:13] } 37... Rxa3+ { [%eval #-3] [%clk 0:09:30] } 38. Kd4 { [%eval #-3] [%clk 0:37:17] } 38... Kg7 { [%eval #-8] [%clk 0:09:00] } 39. Rb1 { [%eval #-4] [%clk 0:37:11] } 0-1