Event: Biel Chess Festival 2025 MTO
Site: Biel, Switzerland
Date: 2025-07-17
White: Gruenfeld, Yehuda
WhiteTitle: GM
WhiteElo: 2367
Black: Perreard, Nicolas
BlackElo: 2100
Result: 1-0
ECO: C43
Opening: Petrov's Defense: Modern Attack, Center Variation
Variant: Standard
TimeControl: 100 min 40 moves + 30 min Rest + 30 sec per move

1. e4 { [%eval 0.18] [%clk 1:40:56] } 1... e5 { [%eval 0.22] [%clk 1:40:56] } 2. Nf3 { [%eval 0.13] [%clk 1:41:15] } 2... Nf6 { [%eval 0.34] [%clk 1:41:22] } 3. d4 { [%eval 0.32] [%clk 1:41:38] } 3... Nxe4 { [%eval 0.22] [%clk 1:41:47] } 4. Bd3 { [%eval 0.18] [%clk 1:41:58] } 4... d5 { [%eval 0.27] [%clk 1:42:08] } 5. dxe5 { [%eval 0.0] [%clk 1:42:15] } 5... f5?! { [%eval 0.72] } { Inaccuracy. Nc5 was best. } { [%clk 1:42:20] } 6. O-O { [%eval 0.21] [%clk 1:26:56] } 6... Bc5?! { [%eval 0.84] } { Inaccuracy. Be7 was best. } { [%clk 1:39:52] } 7. c4 { [%eval 0.77] [%clk 1:26:18] } 7... c6 { [%eval 0.87] [%clk 1:39:12] } 8. cxd5 { [%eval 1.25] [%clk 1:20:55] } 8... cxd5 { [%eval 1.28] [%clk 1:35:49] } 9. Nc3 { [%eval 1.18] [%clk 1:17:56] } 9... Be6? { [%eval 2.59] } { Mistake. O-O was best. } { [%clk 1:27:56] } 10. Na4 { [%eval 2.32] [%clk 1:11:16] } 10... Be7 { [%eval 2.5] [%clk 1:27:26] } 11. Nd4 { [%eval 2.38] [%clk 1:10:05] } 11... Qd7 { [%eval 2.55] [%clk 1:26:38] } 12. Bb5 { [%eval 2.53] [%clk 1:05:51] } 12... Nc6 { [%eval 2.56] [%clk 1:25:43] } 13. Qc2 { [%eval 2.37] [%clk 1:03:29] } 13... Rc8?! { [%eval 3.54] } { Inaccuracy. O-O was best. } { [%clk 1:24:35] } 14. Bxc6?! { [%eval 2.57] } { Inaccuracy. f3 was best. } { [%clk 1:03:27] } 14... bxc6?! { [%eval 3.43] } { Inaccuracy. Rxc6 was best. } { [%clk 1:24:37] } 15. f3 { [%eval 3.65] [%clk 1:02:40] } 1-0