Event: Round 11: Van der Werf, Mark - Bugayev, Vladimir
Site: https://lichess.org/broadcast/fide-world-senior-championship-2025--open-50/round-11/fX1DoLhb/Z3vH6DKH
Date: 2025-11-01
White: Van der Werf, Mark
WhiteTitle: IM
WhiteElo: 2402
Black: Bugayev, Vladimir
BlackElo: 2119
Result: 0-1
ECO: A57
Opening: Benko Gambit Accepted: Modern Variation
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:58] } 1... Nf6 { [%eval 0.19] [%clk 1:30:53] } 2. c4 { [%eval 0.18] [%clk 1:31:25] } 2... c5 { [%eval 0.56] [%clk 1:31:18] } 3. d5 { [%eval 0.46] [%clk 1:31:52] } 3... b5 { [%eval 0.47] [%clk 1:31:40] } 4. cxb5 { [%eval 0.47] [%clk 1:32:20] } 4... a6 { [%eval 0.6] [%clk 1:32:04] } 5. e3 { [%eval 0.42] [%clk 1:32:47] } 5... g6 { [%eval 0.71] [%clk 1:32:18] } 6. Nc3 { [%eval 0.65] [%clk 1:33:10] } 6... Bg7 { [%eval 0.62] [%clk 1:32:43] } 7. e4 { [%eval 0.57] [%clk 1:33:32] } 7... O-O { [%eval 0.74] [%clk 1:33:08] } 8. a4 { [%eval 0.84] [%clk 1:33:45] } 8... Bb7 { [%eval 0.85] [%clk 1:33:20] } 9. Bg5 { [%eval 0.77] [%clk 1:33:10] } 9... Qa5 { [%eval 0.72] [%clk 1:32:13] } 10. Bd2 { [%eval 0.72] [%clk 1:31:25] } 10... Qd8 { [%eval 0.62] [%clk 1:31:10] } 11. Bc4 { [%eval 0.69] [%clk 1:24:56] } 11... e6 { [%eval 0.65] [%clk 1:30:12] } 12. Nge2 { [%eval 0.66] [%clk 1:25:12] } 12... exd5 { [%eval 0.77] [%clk 1:29:24] } 13. exd5 { [%eval 0.65] [%clk 1:25:35] } 13... d6 { [%eval 0.78] [%clk 1:29:22] } 14. Bf4 { [%eval 0.38] [%clk 1:17:35] } 14... Nh5 { [%eval 0.42] [%clk 1:29:23] } 15. Be3 { [%eval 0.35] [%clk 1:16:59] } 15... axb5 { [%eval 0.84] [%clk 1:27:34] } 16. Bxb5 { [%eval 0.93] [%clk 1:09:25] } 16... Na6 { [%eval 0.88] [%clk 1:27:10] } 17. O-O { [%eval 1.0] [%clk 1:06:38] } 17... Nc7 { [%eval 0.83] [%clk 1:25:51] } 18. Bc6?! { [%eval 0.2] } { Inaccuracy. Qd2 was best. } { [%clk 0:50:10] } 18... Bxc6 { [%eval 0.23] [%clk 1:23:20] } 19. dxc6 { [%eval 0.14] [%clk 0:50:36] } 19... Ra6 { [%eval 0.21] [%clk 1:23:24] } 20. Nb5 { [%eval 0.04] [%clk 0:40:46] } 20... Rxc6?! { [%eval 0.63] } { Inaccuracy. Bxb2 was best. } { [%clk 1:23:42] } 21. Nec3 { [%eval 0.58] [%clk 0:40:32] } 21... f5? { [%eval 1.75] } { Mistake. Qd7 was best. } { [%clk 1:16:18] } 22. Qf3?! { [%eval 1.11] } { Inaccuracy. Nd5 was best. } { [%clk 0:37:56] } 22... Qd7 { [%eval 1.06] [%clk 1:07:55] } 23. Rfe1 { [%eval 1.21] [%clk 0:37:03] } 23... Ne6?! { [%eval 2.01] } { Inaccuracy. Nf6 was best. } { [%clk 1:02:38] } 24. Bd2 { [%eval 1.72] [%clk 0:34:06] } 24... Nd4?? { [%eval 3.88] } { Blunder. Bxc3 was best. } { [%clk 1:01:24] } 25. Nxd4 { [%eval 3.84] [%clk 0:34:15] } 25... cxd4 { [%eval 3.95] [%clk 1:01:48] } 26. Nd5 { [%eval 3.97] [%clk 0:34:01] } 26... Kh8 { [%eval 3.91] [%clk 1:01:58] } 27. Re7 { [%eval 4.01] [%clk 0:31:41] } 27... Qd8 { [%eval 3.62] [%clk 1:01:01] } 28. Rae1 { [%eval 3.15] [%clk 0:27:34] } 28... Rc2 { [%eval 3.19] [%clk 0:56:53] } 29. Qd3 { [%eval 3.09] [%clk 0:24:11] } 29... Rc5 { [%eval 3.05] [%clk 0:53:38] } 30. Nf4?? { [%eval 0.51] } { Blunder. Qb3 was best. } { [%clk 0:22:14] } 30... Be5 { [%eval 0.68] [%clk 0:51:54] } 31. b4?? { [%eval -3.67] } { Blunder. R7xe5 was best. } { [%clk 0:19:36] } 31... Nxf4 { [%eval -2.75] [%clk 0:49:05] } 32. Bxf4?! { [%eval -4.06] } { Inaccuracy. Qf3 was best. } { [%clk 0:19:03] } 32... Rc3 { [%eval -3.91] [%clk 0:49:30] } 0-1