Event: Biel Chess Festival 2025 Swiss CHampionship 960
Site: Biel, Switzerland
Date: 2025-07-12
White: Zenker, Ulrich
WhiteTitle: FM
WhiteElo: 2089
Black: Portmann, Daniel
BlackElo: 1891
Result: 0-1
Variant: Fischerandom
TimeControl: 15 min + 5 sec per move

1. d4 { [%eval 0.21] [%clk 0:14:59] } 1... d6 { [%eval 0.66] [%clk 0:14:26] } 2. e4 { [%eval 0.49] [%clk 0:14:24] } 2... e5 { [%eval 0.52] } 3. d5 { [%eval 0.52] [%clk 0:14:21] } 3... Ne7 { [%eval 0.7] [%clk 0:14:24] } 4. c4 { [%eval 0.82] [%clk 0:14:22] } 4... Bd7 { [%eval 0.69] [%clk 0:14:25] } 5. Ne3 { [%eval 0.6] [%clk 0:13:56] } 5... g6 { [%eval 0.63] [%clk 0:14:25] } 6. Bd3 { [%eval 0.69] [%clk 0:13:45] } 6... Bg7 { [%eval 0.76] [%clk 0:14:30] } 7. Bc3 { [%eval 0.53] [%clk 0:13:25] } 7... a6 { [%eval 0.78] [%clk 0:13:53] } 8. a4 { [%eval 0.6] [%clk 0:13:19] } 8... Qc8?! { [%eval 1.22] } { Inaccuracy. O-O was best. } { [%clk 0:13:50] } 9. Ne2 { [%eval 1.14] [%clk 0:12:52] } 9... f5 { [%eval 1.52] [%clk 0:13:32] } 10. exf5 { [%eval 1.47] [%clk 0:11:43] } 10... gxf5 { [%eval 1.77] [%clk 0:13:34] } 11. f4 { [%eval 1.71] [%clk 0:11:36] } 11... Nf7?! { [%eval 2.4] } { Inaccuracy. e4 was best. } { [%clk 0:12:35] } 12. O-O?! { [%eval 1.67] } { Inaccuracy. Ng3 was best. } { [%clk 0:10:56] } 12... O-O { [%eval 1.84] [%clk 0:12:18] } 13. b4 { [%eval 1.79] [%clk 0:09:24] } 13... c6 { [%eval 1.65] [%clk 0:10:26] } 14. Qb2?! { [%eval 0.96] } { Inaccuracy. dxc6 was best. } { [%clk 0:07:47] } 14... Ng6? { [%eval 2.23] } { Mistake. cxd5 was best. } { [%clk 0:09:48] } 15. Rac1 { [%eval 1.67] [%clk 0:06:44] } 15... Bh6?! { [%eval 2.48] } { Inaccuracy. c5 was best. } { [%clk 0:09:00] } 16. g3?! { [%eval 1.43] } { Inaccuracy. Qb1 was best. } { [%clk 0:06:15] } 16... Bg7 { [%eval 1.87] [%clk 0:08:03] } 17. Kh1 { [%eval 1.33] [%clk 0:04:41] } 17... Nh6 { [%eval 1.1] [%clk 0:07:43] } 18. c5 { [%eval 1.13] [%clk 0:03:34] } 18... cxd5 { [%eval 1.68] [%clk 0:06:20] } 19. cxd6 { [%eval 1.52] [%clk 0:03:19] } 19... d4?! { [%eval 2.26] } { Inaccuracy. Bc6 was best. } { [%clk 0:06:03] } 20. Bxd4?? { [%eval -2.17] } { Blunder. Nxd4 was best. } { [%clk 0:04:20] } 20... Bc6+ { [%eval -2.1] [%clk 0:06:07] } 21. Kg1 { [%eval -2.12] [%clk 0:04:13] } 21... exd4 { [%eval -2.26] [%clk 0:06:11] } 22. Nxd4 { [%eval -2.14] [%clk 0:04:05] } 22... Qd7? { [%eval -0.87] } { Mistake. Kh8 was best. } { [%clk 0:06:10] } 23. Qb3+?! { [%eval -1.71] } { Inaccuracy. Qd2 was best. } { [%clk 0:02:58] } 23... Kh8 { [%eval -1.6] [%clk 0:06:11] } 24. Nxc6 { [%eval -1.73] [%clk 0:02:34] } 24... bxc6 { [%eval -1.53] [%clk 0:06:12] } 25. Nc4?! { [%eval -2.4] } { Inaccuracy. Rfd1 was best. } { [%clk 0:02:29] } 25... Rab8 { [%eval -2.74] [%clk 0:06:08] } 26. Rcd1 { [%eval -3.33] [%clk 0:01:42] } 26... c5 { [%eval -3.29] [%clk 0:06:08] } 27. b5 { [%eval -4.02] [%clk 0:01:28] } 27... axb5 { [%eval -4.01] [%clk 0:06:13] } 28. axb5 { [%eval -3.98] [%clk 0:01:32] } 28... Bd4+ { [%eval -3.94] [%clk 0:06:11] } 29. Kg2 { [%eval -3.67] [%clk 0:01:29] } 29... Ng4 { [%eval -3.62] [%clk 0:05:17] } 30. Be2 { [%eval -3.72] [%clk 0:01:04] } 30... Rxb5 { [%eval -3.56] [%clk 0:05:08] } 31. Qa4?! { [%eval -4.85] } { Inaccuracy. Qf3 was best. } { [%clk 0:01:02] } 31... Rb7?? { [%eval -2.07] } { Blunder. Qb7+ was best. } { [%clk 0:04:48] } 32. Qxd7 { [%eval -2.13] [%clk 0:00:41] } 32... Rxd7 { [%eval -2.03] [%clk 0:04:52] } 33. Bf3 { [%eval -2.21] [%clk 0:00:45] } 33... Rb8 { [%eval -1.82] [%clk 0:04:43] } 34. Rfe1?! { [%eval -2.67] } { Inaccuracy. Rb1 was best. } { [%clk 0:00:32] } 34... Rb4 { [%eval -2.57] [%clk 0:04:35] } 35. Bd5 { [%eval -2.14] [%clk 0:00:28] } 35... Rxc4?! { [%eval -1.3] } { Inaccuracy. Kg7 was best. } { [%clk 0:04:14] } 36. Bxc4 { [%eval -1.29] [%clk 0:00:32] } 36... Rxd6 { [%eval -0.73] [%clk 0:04:18] } 37. Re8+ { [%eval -0.69] [%clk 0:00:09] } 37... Kg7 { [%eval -0.73] [%clk 0:04:23] } 38. Rb1?? { [%eval -2.86] } { Blunder. h3 was best. } { [%clk 0:00:13] } 38... Ne3+ { [%eval -2.93] [%clk 0:04:18] } 39. Kf3? { [%eval -5.21] } { Mistake. Rxe3 was best. } 39... Nxc4 { [%eval -5.05] [%clk 0:04:12] } 40. Rb7+ { [%eval -5.17] [%clk 0:00:18] } 40... Kh6 { [%eval -4.9] [%clk 0:04:15] } 41. h3 { [%eval -6.07] [%clk 0:00:11] } 41... Nd2+ { [%eval -6.06] [%clk 0:04:11] } 42. Ke2 { [%eval -5.86] [%clk 0:00:08] } 42... Nc4 { [%eval -5.09] [%clk 0:04:14] } 43. Kf3 { [%eval -5.61] [%clk 0:00:10] } 43... Bf6 { [%eval -5.56] [%clk 0:04:14] } 44. g4?! { [%eval -8.32] } { Inaccuracy. Rc8 was best. } { [%clk 0:00:11] } 44... Rd3+ { [%eval -8.35] [%clk 0:04:12] } 45. Kf2 { [%eval -8.37] [%clk 0:00:07] } 45... Bd4+ { [%eval -7.88] [%clk 0:04:14] } 46. Ke1 { [%eval -7.4] [%clk 0:00:08] } 46... Nxf4 { [%clk 0:04:13] } 47. g5+ 0-1