Event: Biel Chess Festival 2025 MTO
Site: Biel, Switzerland
Date: 2025-07-22
White: Chen, Zhi
WhiteElo: 2246
Black: Zhang, Haoxuan
BlackElo: 1979
Result: 1-0
ECO: D46
Opening: Semi-Slav Defense: Chigorin Defense
Variant: Standard
TimeControl: 100 min 40 moves + 30 min Rest + 30 sec per move

1. d4 { [%eval 0.17] [%clk 1:40:57] } 1... d5 { [%eval 0.2] [%clk 1:40:46] } 2. c4 { [%eval 0.18] [%clk 1:41:17] } 2... c6 { [%eval 0.21] [%clk 1:40:58] } 3. Nf3 { [%eval 0.2] [%clk 1:41:17] } 3... Nf6 { [%eval 0.24] [%clk 1:40:56] } 4. e3 { [%eval 0.15] [%clk 1:41:28] } 4... e6 { [%eval 0.2] [%clk 1:40:42] } 5. Nc3 { [%eval 0.21] [%clk 1:41:46] } 5... Nbd7 { [%eval 0.2] [%clk 1:40:53] } 6. Bd3 { [%eval 0.1] [%clk 1:41:48] } 6... Bd6 { [%eval 0.4] [%clk 1:40:14] } 7. O-O { [%eval 0.25] [%clk 1:41:57] } 7... O-O { [%eval 0.27] [%clk 1:39:26] } 8. e4 { [%eval 0.34] [%clk 1:40:40] } 8... dxc4 { [%eval 0.24] [%clk 1:37:26] } 9. Bxc4 { [%eval 0.33] [%clk 1:41:04] } 9... e5 { [%eval 0.34] [%clk 1:35:03] } 10. Bg5 { [%eval 0.07] [%clk 1:32:20] } 10... h6 { [%eval 0.39] [%clk 1:32:03] } 11. Bh4 { [%eval 0.27] [%clk 1:32:14] } 11... Qe7 { [%eval 0.61] [%clk 1:26:10] } 12. Re1 { [%eval 0.76] [%clk 1:24:01] } 12... Rd8 { [%eval 0.73] [%clk 1:22:24] } 13. Bg3?! { [%eval 0.04] } { Inaccuracy. h3 was best. } { [%clk 1:22:01] } 13... b5?! { [%eval 1.11] } { Inaccuracy. Bb8 was best. } { [%clk 1:05:13] } 14. Bb3?! { [%eval 0.39] } { Inaccuracy. Bxf7+ was best. } { [%clk 1:19:11] } 14... Bc7?! { [%eval 1.4] } { Inaccuracy. Bb8 was best. } { [%clk 0:53:47] } 15. Qc2 { [%eval 1.27] [%clk 1:14:50] } 15... Ba6?! { [%eval 2.41] } { Inaccuracy. Bb8 was best. } { [%clk 0:47:06] } 16. Nd5 { [%eval 2.21] [%clk 1:11:10] } 16... Nxd5? { [%eval 4.56] } { Mistake. cxd5 was best. } { [%clk 0:43:29] } 17. exd5 { [%eval 4.59] [%clk 1:11:13] } 17... Ba5 { [%eval 4.9] [%clk 0:41:44] } 18. Nxe5 { [%eval 4.26] [%clk 1:04:58] } 18... Nxe5 { [%eval 4.92] [%clk 0:37:10] } 19. Rxe5 { [%eval 4.76] [%clk 1:04:52] } 19... Qd7 { [%eval 5.88] [%clk 0:32:19] } 20. dxc6 { [%eval 5.81] [%clk 0:59:39] } 20... Qxd4 { [%eval 5.89] [%clk 0:31:19] } 21. Re7 { [%eval 5.87] [%clk 0:58:59] } 21... Rf8 { [%eval 6.13] [%clk 0:18:35] } 22. Rd1 { [%eval 6.09] [%clk 0:58:29] } 22... Qf6 { [%eval 6.26] [%clk 0:18:38] } 23. Rdd7 { [%eval 6.19] [%clk 0:58:21] } 23... Rae8 { [%eval 6.02] [%clk 0:15:57] } 24. Rxe8 { [%eval 6.19] [%clk 0:48:43] } 24... Rxe8 { [%eval 5.98] [%clk 0:16:20] } 25. h4 { [%eval 6.05] [%clk 0:48:44] } 25... Re7 { [%eval 7.4] [%clk 0:13:52] } 26. Rd6 { [%eval 7.3] [%clk 0:48:37] } 26... Re1+ { [%eval 7.52] [%clk 0:13:28] } 27. Kh2 { [%eval 7.43] [%clk 0:49:03] } 27... Qe7 { [%eval 7.53] [%clk 0:10:07] } 28. Rd7 { [%eval 8.12] [%clk 0:49:16] } 28... Qe8 { [%eval 7.21] [%clk 0:08:19] } 29. Rxa7 { [%eval 6.92] [%clk 0:47:17] } 29... Qc8?? { [%eval #8] } { Checkmate is now unavoidable. Bc8 was best. } { [%clk 0:06:30] } 30. Qg6 { [%eval #7] [%clk 0:45:48] } 30... Kh8 { [%eval #6] [%clk 0:03:28] } 31. Qxf7 { [%eval #5] [%clk 0:46:00] } 1-0