Event: Biel Chess Festival 2025 WT 1
Site: Biel, Switzerland
Date: 2025-07-23
White: Studer, Jonas
Black: Dubel, Nathan
BlackElo: 1762
Result: 0-1
ECO: D00
Opening: Queen's Pawn Game: Stonewall Attack
Variant: Standard
TimeControl: 60' + 30'' / move

1. d4 { [%eval 0.17] [%clk 1:00:53] } 1... d5 { [%eval 0.2] [%clk 1:00:56] } 2. e3 { [%eval 0.03] [%clk 1:01:12] } 2... Nf6 { [%eval 0.1] [%clk 1:01:19] } 3. Bd3 { [%eval -0.06] [%clk 1:01:31] } 3... c5 { [%eval -0.05] [%clk 1:01:44] } 4. c3 { [%eval -0.16] [%clk 1:01:47] } 4... Nc6 { [%eval -0.12] [%clk 1:02:08] } 5. f4?! { [%eval -0.67] } { Inaccuracy. dxc5 was best. } { [%clk 1:02:02] } 5... Bg4 { [%eval -0.69] [%clk 1:02:30] } 6. Nf3 { [%eval -0.68] [%clk 1:02:12] } 6... e6 { [%eval -0.6] [%clk 1:02:50] } 7. O-O { [%eval -0.68] [%clk 1:02:24] } 7... Bd6 { [%eval -0.71] [%clk 1:02:55] } 8. Nbd2 { [%eval -0.9] [%clk 1:02:21] } 8... O-O { [%eval -0.92] [%clk 1:03:08] } 9. Qe1 { [%eval -1.32] [%clk 1:01:50] } 9... Bf5 { [%eval -1.27] [%clk 1:02:57] } 10. Be2 { [%eval -1.35] [%clk 0:57:36] } 10... Rc8 { [%eval -1.11] [%clk 1:02:55] } 11. Ne5 { [%eval -1.15] [%clk 0:57:46] } 11... cxd4 { [%eval -0.69] [%clk 1:02:31] } 12. cxd4? { [%eval -2.16] } { Mistake. exd4 was best. } { [%clk 0:57:52] } 12... Nb4 { [%eval -2.07] [%clk 1:02:51] } 13. Bd1 { [%eval -2.5] [%clk 0:52:45] } 13... Ne4 { [%eval -2.3] [%clk 1:00:43] } 14. Ndf3 { [%eval -2.39] [%clk 0:52:42] } 14... f6 { [%eval -2.43] [%clk 1:00:58] } 15. Bd2? { [%eval -3.96] } { Mistake. a3 was best. } { [%clk 0:51:20] } 15... Nxd2 { [%eval -4.07] [%clk 1:01:00] } 16. Qxd2 { [%eval -4.01] [%clk 0:51:36] } 16... fxe5 { [%eval -3.99] [%clk 0:58:41] } 17. fxe5 { [%eval -3.88] [%clk 0:51:33] } 17... Be7 { [%eval -4.0] [%clk 0:59:01] } 18. a3 { [%eval -3.87] [%clk 0:49:43] } 18... Na6 { [%eval -3.66] [%clk 0:56:35] } 19. Qe2 { [%eval -3.96] [%clk 0:48:37] } 19... Be4 { [%eval -3.81] [%clk 0:54:45] } 20. Qb5 { [%eval -3.84] [%clk 0:47:34] } 20... Qb6 { [%eval -3.58] [%clk 0:53:49] } 21. Qe2 { [%eval -3.89] [%clk 0:46:48] } 21... Bxf3?! { [%eval -2.92] } { Inaccuracy. Nb8 was best. } { [%clk 0:52:17] } 22. gxf3 { [%eval -2.89] [%clk 0:46:59] } 22... Nc7 { [%eval -2.83] [%clk 0:50:48] } 23. Qg2 { [%eval -3.3] [%clk 0:46:28] } 23... Qb5?! { [%eval -2.41] } { Inaccuracy. Ne8 was best. } { [%clk 0:41:13] } 24. f4 { [%eval -2.38] [%clk 0:45:41] } 24... Qd3 { [%eval -1.94] [%clk 0:41:25] } 25. Rf3?! { [%eval -2.94] } { Inaccuracy. Qh3 was best. } { [%clk 0:45:51] } 25... Ne8 { [%eval -3.1] [%clk 0:35:18] } 26. Rh3 { [%eval -3.6] [%clk 0:45:10] } 26... Qe4? { [%eval -1.64] } { Mistake. g6 was best. } { [%clk 0:35:07] } 27. Rf3?? { [%eval -3.73] } { Blunder. Qxe4 was best. } { [%clk 0:44:38] } 27... Bh4?? { [%eval -1.01] } { Blunder. g6 was best. } { [%clk 0:32:57] } 28. Kh1?? { [%eval -3.7] } { Blunder. Qh3 was best. } { [%clk 0:42:48] } 28... Qg6?? { [%eval -0.88] } { Blunder. g5 was best. } { [%clk 0:29:11] } 29. Qh3 { [%eval -0.8] [%clk 0:40:36] } 29... Qh6 { [%eval -0.9] [%clk 0:29:22] } 30. Be2? { [%eval -2.66] } { Mistake. Ba4 was best. } { [%clk 0:38:50] } 30... Rc2 { [%eval -2.55] [%clk 0:28:35] } 31. Bd3 { [%eval -2.89] [%clk 0:38:38] } 31... Rd2 { [%eval -2.85] [%clk 0:26:55] } 32. Bb5 { [%eval -2.43] [%clk 0:36:08] } 32... Rf2 { [%eval -2.59] [%clk 0:20:17] } 33. Rxf2 { [%eval -2.39] [%clk 0:31:57] } 33... Bxf2 { [%eval -2.5] [%clk 0:20:31] } 34. Qf3 { [%eval -2.38] [%clk 0:31:40] } 34... Bh4 { [%eval -2.27] [%clk 0:17:09] } 35. e4?? { [%eval -4.73] } { Blunder. Qg4 was best. } { [%clk 0:30:46] } 35... Rxf4 { [%eval -4.66] [%clk 0:16:54] } 36. Qc3 { [%eval -4.66] [%clk 0:30:53] } 36... Qg6 { [%eval -4.61] [%clk 0:15:43] } 37. exd5?? { [%eval #-6] } { Checkmate is now unavoidable. Bf1 was best. } { [%clk 0:30:35] } 37... Qe4+ { [%eval #-5] [%clk 0:15:51] } 38. Kg1 { [%eval #-5] [%clk 0:30:30] } 38... Bf2+ { [%eval #-4] [%clk 0:16:15] } 39. Kf1 { [%eval #-4] [%clk 0:30:37] } 39... Bxd4+ { [%eval #-3] [%clk 0:16:37] } 0-1