Event: Biel Chess Festival 2025 WT 1
Site: Biel, Switzerland
Date: 2025-07-21
White: Studer, Jonas
Black: Niederberger, Lenny
BlackElo: 1714
Result: 1-0
ECO: A45
Opening: Indian Defense
Variant: Standard
TimeControl: 60' + 30'' / move

1. d4 { [%eval 0.17] [%clk 1:00:53] } 1... Nf6 { [%eval 0.19] [%clk 1:00:50] } 2. e3 { [%eval 0.0] [%clk 1:01:06] } 2... g6 { [%eval 0.28] [%clk 1:01:14] } 3. Bd3 { [%eval -0.04] [%clk 1:01:20] } 3... Bg7 { [%eval 0.17] [%clk 1:01:34] } 4. c3 { [%eval -0.16] [%clk 1:01:29] } 4... O-O { [%eval 0.07] [%clk 1:01:44] } 5. f4 { [%eval -0.37] [%clk 1:01:39] } 5... d5 { [%eval -0.14] [%clk 1:00:50] } 6. Nf3 { [%eval -0.24] [%clk 0:59:34] } 6... e6 { [%eval 0.16] [%clk 1:00:18] } 7. O-O { [%eval -0.06] [%clk 0:59:29] } 7... b6 { [%eval 0.0] [%clk 0:58:59] } 8. Bd2 { [%eval -0.28] [%clk 0:59:32] } 8... c5 { [%eval -0.25] [%clk 0:58:42] } 9. Be1 { [%eval -0.3] [%clk 0:59:22] } 9... Bb7 { [%eval 0.2] [%clk 0:56:50] } 10. Bh4 { [%eval 0.13] [%clk 0:59:17] } 10... Qc7 { [%eval 0.29] [%clk 0:56:11] } 11. Nbd2 { [%eval 0.04] [%clk 0:56:57] } 11... Nbd7 { [%eval 0.12] [%clk 0:55:09] } 12. Ne5 { [%eval 0.19] [%clk 0:56:51] } 12... cxd4 { [%eval 0.61] [%clk 0:51:04] } 13. cxd4 { [%eval 0.69] [%clk 0:56:53] } 13... Rfc8 { [%eval 0.62] [%clk 0:50:36] } 14. Bg3?! { [%eval 0.0] } { Inaccuracy. Rc1 was best. } { [%clk 0:53:54] } 14... Nxe5 { [%eval 0.52] [%clk 0:50:00] } 15. fxe5 { [%eval 0.52] [%clk 0:54:05] } 15... Ne8? { [%eval 2.17] } { Mistake. Ne4 was best. } { [%clk 0:49:03] } 16. Qf3 { [%eval 1.86] [%clk 0:52:33] } 16... Qd7 { [%eval 1.87] [%clk 0:42:54] } 17. Bh4 { [%eval 1.38] [%clk 0:48:41] } 17... Rc7 { [%eval 1.59] [%clk 0:42:04] } 18. Qf4?! { [%eval 0.64] } { Inaccuracy. Qe2 was best. } { [%clk 0:47:57] } 18... Rac8?! { [%eval 1.5] } { Inaccuracy. Bc6 was best. } { [%clk 0:40:08] } 19. Nf3?! { [%eval 0.9] } { Inaccuracy. Qf2 was best. } { [%clk 0:46:31] } 19... h6?! { [%eval 2.06] } { Inaccuracy. Bc6 was best. } { [%clk 0:34:21] } 20. Bf6 { [%eval 2.12] [%clk 0:42:38] } 20... Bxf6?? { [%eval 4.51] } { Blunder. Bf8 was best. } { [%clk 0:29:04] } 21. exf6 { [%eval 4.49] [%clk 0:42:46] } 21... Kh7?! { [%eval 6.72] } { Inaccuracy. Qd8 was best. } { [%clk 0:29:22] } 22. Ne5 { [%eval 6.76] [%clk 0:38:13] } 22... Qd8 { [%eval 8.69] [%clk 0:25:52] } 23. Ng4 { [%eval 7.73] [%clk 0:37:48] } 23... h5? { [%eval #9] } { Checkmate is now unavoidable. Kg8 was best. } { [%clk 0:23:03] } 24. Qh6+ { [%eval #8] [%clk 0:33:42] } 24... Kg8 { [%eval #8] [%clk 0:23:23] } 25. Bxg6 { [%eval #7] [%clk 0:24:33] } 25... fxg6 { [%eval #6] [%clk 0:23:32] } 26. Qxg6+? { [%eval 7.76] } { Lost forced checkmate sequence. f7+ was best. } { [%clk 0:24:34] } 26... Ng7 { [%eval 7.66] [%clk 0:20:21] } 27. Nh6+ { [%eval 7.27] [%clk 0:22:20] } 27... Kh8 { [%eval 6.84] [%clk 0:19:25] } 28. Nf7+ { [%eval 7.86] [%clk 0:21:00] } 28... Rxf7 { [%eval 7.89] [%clk 0:19:43] } 29. Qxf7 { [%eval 7.63] [%clk 0:21:02] } 29... Nf5? { [%eval #4] } { Checkmate is now unavoidable. Qg8 was best. } { [%clk 0:19:24] } 30. Qxe6?? { [%eval 6.52] } { Lost forced checkmate sequence. Rxf5 was best. } { [%clk 0:20:30] } 30... Nh4 { [%eval 7.5] [%clk 0:16:28] } 31. f7 { [%eval 7.39] [%clk 0:19:50] } 31... Qg5? { [%eval #5] } { Checkmate is now unavoidable. Qf8 was best. } { [%clk 0:15:10] } 32. f8=Q+ { [%eval #7] [%clk 0:18:53] } 32... Rxf8 { [%eval #7] [%clk 0:15:31] } 33. Rxf8+ { [%eval #6] [%clk 0:19:12] } 33... Kg7 { [%eval #2] [%clk 0:15:52] } 34. Rf7+ { [%eval #3] [%clk 0:19:00] } 34... Kh8 { [%eval #3] } 35. Rf8+ { [%eval #6] [%clk 0:19:14] } 1-0