Event: Biel Chess Festival 2025 WT 1
Site: Biel, Switzerland
Date: 2025-07-24
White: Robert-Grandpierre, Christian
WhiteElo: 1543
Black: Casner, Didier
Result: 0-1
ECO: E91
Opening: King's Indian Defense: Orthodox Variation
Variant: Standard
TimeControl: 60' + 30'' / move

1. d4 { [%eval 0.17] [%clk 1:00:53] } 1... Nf6 { [%eval 0.19] [%clk 1:00:38] } 2. c4 { [%eval 0.18] [%clk 1:01:10] } 2... g6 { [%eval 0.28] [%clk 1:00:45] } 3. Nc3 { [%eval 0.18] [%clk 1:01:28] } 3... Bg7 { [%eval 0.51] [%clk 1:01:02] } 4. e4 { [%eval 0.4] [%clk 1:01:46] } 4... d6 { [%eval 0.55] [%clk 1:01:10] } 5. Nf3 { [%eval 0.36] [%clk 1:01:53] } 5... O-O { [%eval 0.44] [%clk 0:59:59] } 6. Be2 { [%eval 0.45] [%clk 1:02:18] } 6... Re8 { [%eval 0.59] [%clk 1:00:04] } 7. O-O { [%eval 0.6] [%clk 1:02:00] } 7... e5 { [%eval 0.6] [%clk 1:00:01] } 8. d5 { [%eval 0.58] [%clk 1:01:55] } 8... Nbd7 { [%eval 0.59] [%clk 0:58:57] } 9. Qc2 { [%eval 0.44] [%clk 1:01:05] } 9... a5 { [%eval 0.52] [%clk 0:53:42] } 10. h3 { [%eval 0.41] [%clk 1:01:17] } 10... Nc5 { [%eval 0.41] [%clk 0:53:59] } 11. Be3 { [%eval 0.4] [%clk 1:01:04] } 11... Ncxe4?? { [%eval 2.19] } { Blunder. Nh5 was best. } { [%clk 0:47:44] } 12. Nxe4 { [%eval 2.3] [%clk 0:50:36] } 12... Bf5?! { [%eval 3.63] } { Inaccuracy. Nxe4 was best. } { [%clk 0:47:13] } 13. Bd3 { [%eval 2.98] [%clk 0:49:20] } 13... Rc8?! { [%eval 3.87] } { Inaccuracy. Nxe4 was best. } { [%clk 0:44:47] } 14. Nxf6+ { [%eval 3.82] [%clk 0:48:16] } 14... Qxf6 { [%eval 3.98] [%clk 0:40:08] } 15. Bxf5 { [%eval 3.6] [%clk 0:48:20] } 15... gxf5 { [%eval 3.65] [%clk 0:39:38] } 16. Qd2? { [%eval 1.67] } { Mistake. Rfe1 was best. } { [%clk 0:43:13] } 16... f4 { [%eval 1.56] [%clk 0:39:31] } 17. Ba7?? { [%eval -1.07] } { Blunder. Qxa5 was best. } { [%clk 0:40:27] } 17... b6 { [%eval -1.14] [%clk 0:39:26] } 18. b4?! { [%eval -2.13] } { Inaccuracy. Kh1 was best. } { [%clk 0:39:28] } 18... Ra8 { [%eval -1.58] [%clk 0:39:27] } 19. bxa5 { [%eval -1.72] [%clk 0:39:38] } 19... Rxa7 { [%eval -1.54] [%clk 0:39:35] } 20. axb6 { [%eval -1.27] [%clk 0:39:57] } 20... cxb6 { [%eval -1.42] [%clk 0:39:47] } 21. Rfb1?? { [%eval -3.86] } { Blunder. Kh1 was best. } { [%clk 0:39:43] } 21... e4 { [%eval -3.63] [%clk 0:39:14] } 22. Nh2 { [%eval -4.33] [%clk 0:38:51] } 22... e3 { [%eval -4.2] [%clk 0:39:09] } 23. fxe3 { [%eval -4.18] [%clk 0:36:43] } 23... fxe3 { [%eval -4.22] [%clk 0:38:44] } 24. Qe2 { [%eval -4.09] [%clk 0:35:43] } 24... Qf4?? { [%eval -1.56] } { Blunder. Qf2+ was best. } { [%clk 0:37:31] } 25. Rf1 { [%eval -1.59] [%clk 0:34:15] } 25... Qd4 { [%eval -1.42] [%clk 0:30:07] } 26. Rab1? { [%eval -2.77] } { Mistake. Rac1 was best. } { [%clk 0:30:41] } 26... Rxa2?? { [%eval 0.0] } { Blunder. Qd2 was best. } { [%clk 0:27:31] } 27. Qxa2 { [%eval 0.0] [%clk 0:22:20] } 27... e2+ { [%eval 0.0] [%clk 0:27:35] } 28. Rf2?? { [%eval #-9] } { Checkmate is now unavoidable. Kh1 was best. } { [%clk 0:22:25] } 28... Qd1+?? { [%eval -1.05] } { Lost forced checkmate sequence. e1=R+ was best. } { [%clk 0:24:28] } 29. Rxd1?? { [%eval -5.46] } { Blunder. Rf1 was best. } { [%clk 0:11:52] } 29... exd1=Q+ { [%eval -5.42] [%clk 0:24:29] } 30. Rf1? { [%eval -12.46] } { Mistake. Nf1 was best. } { [%clk 0:12:07] } 30... Bd4+ { [%eval -8.99] [%clk 0:23:34] } 31. Kh1? { [%eval #-12] } { Checkmate is now unavoidable. Qf2 was best. } { [%clk 0:11:27] } 31... Re1 { [%eval #-11] [%clk 0:20:02] } 32. Nf3 { [%eval #-5] [%clk 0:04:39] } 32... Rxf1+ { [%eval #-4] [%clk 0:19:52] } 33. Kh2 { [%eval #-4] [%clk 0:05:03] } 33... Qc1 { [%eval #-15] [%clk 0:15:16] } 34. Qe2 { [%eval #-21] [%clk 0:03:21] } 34... Qf4+ { [%eval -63.09] [%clk 0:10:48] } 0-1