Event: Biel Chess Festival 2025 Challengers Rapid
Site: Biel, Switzerland
Date: 2025-05-17
White: Ma, Qun
WhiteTitle: GM
WhiteElo: 2617
Black: Navara, David
BlackTitle: GM
BlackElo: 2621
Result: 1/2-1/2
ECO: E60
Opening: Indian Defense: Anti-Grünfeld, Alekhine Variation
Variant: Standard
TimeControl: 15 min + 5 sec per move

1. d4 { [%eval 0.17] [%clk 0:15:08] } 1... Nf6 { [%eval 0.19] [%clk 0:15:08] } 2. c4 { [%eval 0.18] [%clk 0:15:11] } 2... g6 { [%eval 0.28] [%clk 0:15:03] } 3. f3 { [%eval 0.22] [%clk 0:15:09] } 3... c5 { [%eval 0.35] [%clk 0:14:59] } 4. dxc5 { [%eval 0.0] [%clk 0:15:04] } 4... e6 { [%eval 0.0] [%clk 0:13:39] } 5. Be3 { [%eval 0.0] [%clk 0:14:41] } 5... b6 { [%eval 0.0] [%clk 0:13:21] } 6. cxb6 { [%eval -0.02] [%clk 0:14:38] } 6... axb6 { [%eval -0.08] [%clk 0:13:23] } 7. Bf2 { [%eval 0.0] [%clk 0:12:10] } 7... Nc6 { [%eval 0.0] [%clk 0:12:48] } 8. Nc3 { [%eval 0.08] [%clk 0:11:26] } 8... Bb4 { [%eval 0.34] [%clk 0:11:51] } 9. e4 { [%eval 0.21] [%clk 0:10:44] } 9... O-O { [%eval 0.16] [%clk 0:11:53] } 10. Ne2 { [%eval 0.2] [%clk 0:10:42] } 10... d5 { [%eval 0.21] [%clk 0:11:29] } 11. a3 { [%eval 0.23] [%clk 0:10:14] } 11... dxc4? { [%eval 1.52] } { Mistake. dxe4 was best. } { [%clk 0:11:01] } 12. axb4 { [%eval 1.46] [%clk 0:07:41] } 12... Rxa1 { [%eval 1.48] [%clk 0:09:39] } 13. Qxa1 { [%eval 1.51] [%clk 0:07:45] } 13... Nxb4 { [%eval 1.48] [%clk 0:09:42] } 14. Nd4 { [%eval 1.56] [%clk 0:07:47] } 14... e5 { [%eval 1.5] [%clk 0:09:45] } 15. Qa4 { [%eval 1.36] [%clk 0:07:30] } 15... exd4 { [%eval 1.7] [%clk 0:09:40] } 16. Qxb4 { [%eval 1.56] [%clk 0:07:34] } 16... dxc3 { [%eval 1.56] [%clk 0:09:22] } 17. bxc3 { [%eval 1.41] [%clk 0:06:50] } 17... Nxe4 { [%eval 1.84] [%clk 0:06:01] } 18. fxe4 { [%eval 1.96] [%clk 0:06:34] } 18... Re8 { [%eval 2.27] [%clk 0:06:02] } 19. Qxc4 { [%eval 2.05] [%clk 0:03:54] } 19... Qg5 { [%eval 1.79] [%clk 0:06:04] } 20. Be2?? { [%eval -0.61] } { Blunder. Bg3 was best. } { [%clk 0:02:10] } 20... Qc1+ { [%eval -0.71] [%clk 0:05:49] } 21. Bd1 { [%eval -0.41] [%clk 0:02:13] } 21... Ba6 { [%eval -0.41] [%clk 0:05:53] } 22. Qxa6 { [%eval -0.47] [%clk 0:01:30] } 22... Rxe4+ { [%eval -0.48] [%clk 0:05:56] } 23. Qe2 { [%eval -0.48] [%clk 0:01:31] } 23... Qxc3+ { [%eval -0.61] [%clk 0:05:59] } 24. Kf1 { [%eval -0.59] [%clk 0:01:36] } 24... Rxe2 { [%eval -0.67] [%clk 0:06:01] } 25. Bxe2 { [%eval -0.74] [%clk 0:00:59] } 25... Qc1+ { [%eval -0.2] [%clk 0:01:49] } 26. Be1 { [%eval -0.14] [%clk 0:01:02] } 26... Qf4+ { [%eval -0.09] [%clk 0:01:52] } 27. Bf2 { [%eval -0.15] [%clk 0:01:02] } 27... g5 { [%eval -0.04] [%clk 0:01:35] } 28. g4 { [%eval -0.09] [%clk 0:00:10] } 28... b5 { [%eval -0.13] [%clk 0:00:54] } 29. Rg1 { [%eval -0.03] [%clk 0:00:14] } 29... Qxh2 { [%eval 0.0] [%clk 0:00:40] } 30. Bxb5 { [%eval -0.04] [%clk 0:00:11] } 30... h5 { [%eval -0.1] [%clk 0:00:30] } 31. gxh5 { [%eval 0.0] [%clk 0:00:08] } 31... Qxh5 { [%eval 0.0] [%clk 0:00:31] } 32. Be2 { [%eval 0.0] [%clk 0:00:11] } 32... Qh3+ { [%eval 0.0] [%clk 0:00:34] } 33. Ke1 { [%eval -0.22] [%clk 0:00:14] } 33... Qc3+ { [%clk 0:00:32] } 34. Kf1 { [%clk 0:00:17] } 34... Qh3+ { [%clk 0:00:35] } 35. Ke1 { [%clk 0:00:20] } 35... Qc3+ { [%clk 0:00:38] } 1/2-1/2