Event: Biel Chess Festival 2025 MTO
Site: Biel, Switzerland
Date: 2025-07-21
White: Dau Khuong Duy
WhiteTitle: IM
WhiteElo: 2456
Black: Yilmaz, Mustafa
BlackTitle: GM
BlackElo: 2586
Result: 1/2-1/2
ECO: B90
Opening: Sicilian Defense: Najdorf Variation
Variant: Standard
TimeControl: 100 min 40 moves +30 min Rest + 30 sec per move

1. e4 { [%eval 0.18] [%clk 1:40:50] } 1... c5 { [%eval 0.25] [%clk 1:39:39] } 2. Nf3 { [%eval 0.2] [%clk 1:41:00] } 2... d6 { [%eval 0.31] [%clk 1:39:56] } 3. d4 { [%eval 0.22] [%clk 1:41:18] } 3... cxd4 { [%eval 0.19] [%clk 1:40:18] } 4. Nxd4 { [%eval 0.18] [%clk 1:41:44] } 4... Nf6 { [%eval 0.31] [%clk 1:40:43] } 5. Nc3 { [%eval 0.32] [%clk 1:42:06] } 5... a6 { [%eval 0.28] [%clk 1:41:10] } 6. Bd3 { [%eval 0.18] [%clk 1:42:25] } 6... g6 { [%eval 0.2] [%clk 1:41:12] } 7. f3 { [%eval 0.29] [%clk 1:42:17] } 7... Qb6 { [%eval 0.29] [%clk 1:41:07] } 8. Nb3 { [%eval 0.26] [%clk 1:40:58] } 8... Bg7 { [%eval 0.27] [%clk 1:41:22] } 9. Qe2 { [%eval 0.03] [%clk 1:40:29] } 9... Nbd7 { [%eval 0.32] [%clk 1:36:41] } 10. Be3 { [%eval 0.34] [%clk 1:39:57] } 10... Qc7 { [%eval 0.4] [%clk 1:37:09] } 11. g4 { [%eval 0.45] [%clk 1:32:04] } 11... b5 { [%eval 0.51] [%clk 1:33:59] } 12. g5 { [%eval 0.47] [%clk 1:24:54] } 12... Nh5 { [%eval 0.36] [%clk 1:32:37] } 13. Nd5 { [%eval 0.31] [%clk 1:22:11] } 13... Qb8 { [%eval 0.78] [%clk 1:07:30] } 14. Na5?! { [%eval 0.0] } { Inaccuracy. O-O-O was best. } { [%clk 1:02:05] } 14... Bb7?! { [%eval 0.66] } { Inaccuracy. Bxb2 was best. } { [%clk 0:56:35] } 15. O-O-O { [%eval 0.68] [%clk 0:55:43] } 15... Bxd5 { [%eval 0.76] [%clk 0:55:54] } 16. exd5 { [%eval 0.76] [%clk 0:56:04] } 16... Qc7 { [%eval 0.7] [%clk 0:56:06] } 17. Nc6 { [%eval 0.72] [%clk 0:54:03] } 17... Ne5 { [%eval 0.72] [%clk 0:54:25] } 18. Nxe5 { [%eval 0.71] [%clk 0:46:32] } 18... dxe5 { [%eval 0.69] [%clk 0:53:59] } 19. Be4 { [%eval 0.67] [%clk 0:42:49] } 19... Rc8 { [%eval 0.78] [%clk 0:48:41] } 20. Kb1 { [%eval 0.89] [%clk 0:37:25] } 20... Qd6 { [%eval 0.67] [%clk 0:38:13] } 21. Rc1 { [%eval 0.32] [%clk 0:35:22] } 21... Nf4 { [%eval 0.34] [%clk 0:35:04] } 22. Qd2 { [%eval 0.51] [%clk 0:35:31] } 22... O-O { [%eval 0.48] [%clk 0:34:17] } 23. Rhd1 { [%eval 0.59] [%clk 0:33:42] } 23... Rfd8 { [%eval 0.53] [%clk 0:31:00] } 1/2-1/2