Event: Biel Chess Festival 2025
Date: 2025-07-15
White: Bellm, Juergen
WhiteElo: 1728
Black: Jahn, Thomas
BlackElo: 1964
Result: 0-1
ECO: D37
Opening: Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:36] } 1... d5 { [%eval 0.2] [%clk 1:27:27] } 2. c4 { [%eval 0.18] [%clk 1:30:59] } 2... e6 { [%eval 0.17] [%clk 1:27:06] } 3. Nc3 { [%eval 0.18] [%clk 1:31:07] } 3... Be7 { [%eval 0.38] [%clk 1:27:27] } 4. Nf3 { [%eval 0.21] [%clk 1:30:41] } 4... Nf6 { [%eval 0.14] [%clk 1:27:48] } 5. Bf4 { [%eval 0.17] [%clk 1:31:00] } 5... O-O { [%eval 0.17] [%clk 1:27:58] } 6. e3 { [%eval 0.25] [%clk 1:31:01] } 6... b6 { [%eval 0.21] [%clk 1:26:58] } 7. Rc1 { [%eval 0.18] [%clk 1:27:51] } 7... c5 { [%eval 0.24] [%clk 1:25:01] } 8. cxd5 { [%eval -0.17] [%clk 1:24:36] } 8... exd5?! { [%eval 0.49] } { Inaccuracy. Nxd5 was best. } { [%clk 1:18:26] } 9. Bd3 { [%eval 0.52] [%clk 1:16:19] } 9... Nc6 { [%eval 0.53] [%clk 1:09:18] } 10. h3 { [%eval 0.46] [%clk 1:12:30] } 10... c4 { [%eval 0.53] [%clk 1:05:16] } 11. Bb1 { [%eval 0.44] [%clk 1:12:18] } 11... a6 { [%eval 0.51] [%clk 1:05:40] } 12. O-O { [%eval 0.32] [%clk 1:11:51] } 12... b5 { [%eval 0.3] [%clk 1:05:59] } 13. Ne5 { [%eval 0.4] [%clk 1:07:03] } 13... Qb6? { [%eval 1.83] } { Mistake. Bb7 was best. } { [%clk 0:56:33] } 14. Nxc6?? { [%eval -0.22] } { Blunder. Ng4 was best. } { [%clk 1:06:58] } 14... Qxc6 { [%eval -0.26] [%clk 0:56:52] } 15. Re1 { [%eval -0.25] [%clk 0:57:23] } 15... Bb7 { [%eval -0.19] [%clk 0:51:42] } 16. Qc2?! { [%eval -0.86] } { Inaccuracy. e4 was best. } { [%clk 0:49:35] } 16... g6 { [%eval -0.8] [%clk 0:51:17] } 17. Qe2 { [%eval -0.9] [%clk 0:43:03] } 17... b4 { [%eval -0.87] [%clk 0:49:30] } 18. Nd1 { [%eval -0.83] [%clk 0:43:13] } 18... Qb6?! { [%eval -0.02] } { Inaccuracy. Rac8 was best. } { [%clk 0:47:59] } 19. g4? { [%eval -1.17] } { Mistake. e4 was best. } { [%clk 0:39:32] } 19... a5 { [%eval -0.65] [%clk 0:43:55] } 20. h4?! { [%eval -1.38] } { Inaccuracy. e4 was best. } { [%clk 0:32:01] } 20... Ba6 { [%eval -0.96] [%clk 0:35:02] } 21. Qf3 { [%eval -1.46] [%clk 0:30:27] } 21... Qe6 { [%eval -1.57] [%clk 0:33:59] } 22. Be5? { [%eval -3.11] } { Mistake. e4 was best. } { [%clk 0:23:52] } 22... Qxg4+ { [%eval -2.61] [%clk 0:28:48] } 23. Qxg4 { [%eval -2.64] [%clk 0:24:02] } 23... Nxg4 { [%eval -2.64] [%clk 0:29:16] } 24. Bg3 { [%eval -2.56] [%clk 0:23:54] } 24... Nf6 { [%eval -2.53] [%clk 0:29:34] } 25. e4 { [%eval -2.34] [%clk 0:23:35] } 25... Nxe4 { [%eval -2.53] [%clk 0:29:09] } 26. Bxe4 { [%eval -2.52] [%clk 0:23:54] } 26... dxe4 { [%eval -2.38] [%clk 0:29:36] } 27. Rxe4 { [%eval -2.5] [%clk 0:24:16] } 27... Bf6 { [%eval -2.52] [%clk 0:26:04] } 28. Be5 { [%eval -3.06] [%clk 0:23:10] } 28... Rfe8 { [%eval -2.96] [%clk 0:22:46] } 29. f3 { [%eval -3.37] [%clk 0:20:46] } 0-1