Event: Biel Chess Festival WT1
Site: Biel, Switzerland
Date: 2024-07-22
White: Studer, Jonas
Black: Mayer, Roger
Result: 0-1
ECO: C20
Opening: King's Pawn Game
Variant: Standard
TimeControl: 40' + 30''/mv

1. e4 { [%eval 0.15] [%clk 0:40:52] } 1... e5 { [%eval 0.21] [%clk 0:40:48] } 2. g3?! { [%eval -0.48] } { Inaccuracy. Nf3 was best. } { [%clk 0:41:12] } 2... Nc6?! { [%eval 0.07] } { Inaccuracy. d5 was best. } { [%clk 0:40:30] } 3. Bg2 { [%eval 0.0] [%clk 0:41:06] } 3... Nf6 { [%eval 0.0] [%clk 0:40:28] } 4. c3 { [%eval -0.39] [%clk 0:40:48] } 4... Bc5 { [%eval 0.01] [%clk 0:38:32] } 5. Ne2 { [%eval -0.39] [%clk 0:40:24] } 5... a6?! { [%eval 0.47] } { Inaccuracy. d5 was best. } { [%clk 0:35:46] } 6. b4?! { [%eval -0.23] } { Inaccuracy. d4 was best. } { [%clk 0:39:26] } 6... Ba7 { [%eval -0.09] [%clk 0:35:14] } 7. Na3?! { [%eval -0.79] } { Inaccuracy. d4 was best. } { [%clk 0:38:17] } 7... O-O { [%eval -0.82] [%clk 0:34:44] } 8. Nc2 { [%eval -1.03] [%clk 0:35:21] } 8... Qe7?! { [%eval 0.05] } { Inaccuracy. d5 was best. } { [%clk 0:34:25] } 9. Ba3?! { [%eval -0.53] } { Inaccuracy. a4 was best. } { [%clk 0:34:16] } 9... d6 { [%eval -0.6] [%clk 0:34:24] } 10. O-O { [%eval -0.51] [%clk 0:33:39] } 10... Bd7 { [%eval -0.34] [%clk 0:32:14] } 11. d4 { [%eval -0.77] [%clk 0:33:31] } 11... exd4 { [%eval -0.58] [%clk 0:31:39] } 12. cxd4 { [%eval -0.7] [%clk 0:33:20] } 12... Nxe4 { [%eval -0.83] [%clk 0:29:34] } 13. Nf4 { [%eval -1.3] [%clk 0:32:51] } 13... Nc3? { [%eval -0.11] } { Mistake. f5 was best. } { [%clk 0:28:49] } 14. Qd3 { [%eval -0.08] [%clk 0:31:45] } 14... Nb5? { [%eval 1.32] } { Mistake. Na4 was best. } { [%clk 0:29:03] } 15. Nd5? { [%eval -0.02] } { Mistake. Bb2 was best. } { [%clk 0:30:18] } 15... Qg5 { [%eval -0.04] [%clk 0:27:00] } 16. Bc1 { [%eval -0.18] [%clk 0:26:59] } 16... Qg6 { [%eval -0.21] [%clk 0:26:38] } 17. Be4 { [%eval -0.21] [%clk 0:26:30] } 17... f5 { [%eval -0.3] [%clk 0:26:31] } 18. Nf4?? { [%eval -5.67] } { Blunder. Bg2 was best. } { [%clk 0:24:45] } 18... fxe4 { [%eval -5.76] [%clk 0:24:25] } 19. Nxg6 { [%eval -6.06] [%clk 0:25:06] } 19... exd3 { [%eval -6.06] [%clk 0:24:50] } 20. Nxf8 { [%eval -5.98] [%clk 0:25:23] } 20... Rxf8 { [%eval -6.08] [%clk 0:24:48] } 21. d5 { [%eval -6.25] [%clk 0:24:58] } 21... dxc2 { [%eval -6.12] [%clk 0:22:33] } 22. dxc6 { [%eval -6.0] [%clk 0:25:20] } 22... Bd4 { [%eval -4.89] [%clk 0:22:08] } 23. cxd7 { [%eval -4.79] [%clk 0:25:28] } 23... Bxa1 { [%eval -4.77] [%clk 0:22:31] } 24. Re1 { [%eval -4.82] [%clk 0:25:38] } 24... Bf6 { [%eval -4.73] [%clk 0:21:59] } 25. h4 { [%eval -5.27] [%clk 0:24:03] } 25... Kf7 { [%eval -5.05] [%clk 0:21:40] } 26. a4 { [%eval -5.35] [%clk 0:23:02] } 26... Nd4 { [%eval -5.26] [%clk 0:21:33] } 27. Bb2?! { [%eval -8.26] } { Inaccuracy. Kf1 was best. } { [%clk 0:23:24] } 27... Nf3+ { [%eval -7.69] [%clk 0:21:11] } 0-1