Event: Biel Chess Festival 2025 Swiss CHampionship 960
Site: Biel, Switzerland
Date: 2025-07-12
White: Portmann, Daniel
WhiteElo: 1891
Black: Jordan, Christina
BlackElo: 1943
Result: 1-0
Variant: Fischerandom
TimeControl: 15 min + 5 sec per move

1. g4 { [%eval -0.08] [%clk 0:15:09] } 1... d5 { [%eval -0.1] [%clk 0:15:08] } 2. Ne3?! { [%eval -0.66] } { Inaccuracy. f4 was best. } { [%clk 0:15:05] } 2... e6? { [%eval 0.45] } { Mistake. d4 was best. } { [%clk 0:15:10] } 3. d4 { [%eval 0.22] [%clk 0:14:13] } 3... g6 { [%eval 0.57] [%clk 0:14:48] } 4. Bb4?! { [%eval -0.46] } { Inaccuracy. a4 was best. } { [%clk 0:13:25] } 4... Bb5?? { [%eval 1.74] } { Blunder. Nd7 was best. } { [%clk 0:13:28] } 5. a4 { [%eval 1.45] [%clk 0:12:20] } 5... Bc6 { [%eval 1.57] [%clk 0:12:56] } 6. Nf3?! { [%eval 0.73] } { Inaccuracy. a5 was best. } { [%clk 0:11:40] } 6... Qd7?! { [%eval 1.48] } { Inaccuracy. a5 was best. } { [%clk 0:13:00] } 7. Ne5?! { [%eval 0.44] } { Inaccuracy. a5 was best. } { [%clk 0:11:21] } 7... Bxe5 { [%eval 0.5] [%clk 0:13:04] } 8. dxe5 { [%eval 0.54] [%clk 0:11:25] } 8... Bxa4?? { [%eval 3.11] } { Blunder. a5 was best. } { [%clk 0:12:46] } 9. Rd4?? { [%eval 0.95] } { Blunder. Nxd5 was best. } { [%clk 0:11:05] } 9... Bc6 { [%eval 1.04] [%clk 0:11:51] } 10. Qd2?! { [%eval 0.03] } { Inaccuracy. c4 was best. } { [%clk 0:09:52] } 10... Ne7 { [%eval 0.15] [%clk 0:09:38] } 11. Nc4 { [%eval -0.1] [%clk 0:08:23] } 11... b6 { [%eval -0.07] [%clk 0:09:23] } 12. Qh6?? { [%eval -1.76] } { Blunder. e4 was best. } { [%clk 0:07:43] } 12... Bb5 { [%eval -1.6] [%clk 0:08:58] } 13. Bxe7 { [%eval -1.59] [%clk 0:07:29] } 13... Qxe7 { [%eval -1.45] [%clk 0:09:01] } 14. Na3 { [%eval -1.76] [%clk 0:07:23] } 14... Bxe2 { [%eval -1.66] [%clk 0:08:40] } 15. h3?! { [%eval -2.87] } { Inaccuracy. c4 was best. } { [%clk 0:06:23] } 15... Ba6 { [%eval -2.79] [%clk 0:08:29] } 16. O-O-O { [%eval -2.95] [%clk 0:06:07] } 16... Nd7 { [%eval -2.79] [%clk 0:07:41] } 17. f4 { [%eval -2.68] [%clk 0:06:05] } 17... Kb7 { [%eval -3.02] [%clk 0:06:02] } 18. c4 { [%eval -2.98] [%clk 0:05:57] } 18... c6 { [%eval -2.99] [%clk 0:06:06] } 19. Bf3 { [%eval -3.54] [%clk 0:04:44] } 19... Nc5 { [%eval -3.56] [%clk 0:06:00] } 20. Kc2 { [%eval -4.13] [%clk 0:04:26] } 20... dxc4 { [%eval -3.51] [%clk 0:04:49] } 21. Rd6 { [%eval -4.26] [%clk 0:03:57] } 21... Rac8?! { [%eval -3.37] } { Inaccuracy. Rxd6 was best. } { [%clk 0:04:51] } 22. Qxh7 { [%eval -3.91] [%clk 0:03:25] } 22... Nd3 { [%eval -4.1] [%clk 0:04:53] } 23. Rxd8?! { [%eval -5.47] } { Inaccuracy. Be2 was best. } { [%clk 0:02:28] } 23... Rxd8 { [%eval -5.28] [%clk 0:04:57] } 24. g5?! { [%eval -7.45] } { Inaccuracy. Kb1 was best. } { [%clk 0:02:33] } 24... Nb4+?! { [%eval -5.38] } { Inaccuracy. Rd7 was best. } { [%clk 0:04:16] } 25. Kb1 { [%eval -5.07] [%clk 0:02:21] } 25... Nd5?! { [%eval -3.74] } { Inaccuracy. Rxd1+ was best. } { [%clk 0:04:03] } 26. Qh4 { [%eval -4.53] [%clk 0:02:24] } 26... c3 { [%eval -4.41] [%clk 0:04:06] } 27. Be4? { [%eval -8.35] } { Mistake. f5 was best. } { [%clk 0:02:21] } 27... cxb2 { [%eval -6.82] [%clk 0:03:55] } 28. Bxd5?? { [%eval #-9] } { Checkmate is now unavoidable. Qg3 was best. } { [%clk 0:02:14] } 28... cxd5?? { [%eval -5.47] } { Lost forced checkmate sequence. Qxa3 was best. } { [%clk 0:04:05] } 29. Nc2 { [%eval -5.8] [%clk 0:02:18] } 29... Rc8 { [%eval -5.45] [%clk 0:03:47] } 30. Qf2 { [%eval -5.23] [%clk 0:02:23] } 30... Qc5 { [%eval -5.29] [%clk 0:03:45] } 31. Qxc5 { [%eval -5.17] [%clk 0:02:17] } 31... Rxc5 { [%eval -4.22] [%clk 0:03:48] } 32. Nd4 { [%eval -4.31] [%clk 0:02:21] } 32... Rc1+ { [%eval -4.48] [%clk 0:03:25] } 33. Rxc1 { [%eval -4.2] [%clk 0:02:24] } 33... bxc1=Q+ { [%eval -4.08] [%clk 0:03:29] } 34. Kxc1 { [%eval -3.98] [%clk 0:02:28] } 34... Bf1 { [%eval -3.83] [%clk 0:03:18] } 35. h4 { [%eval -3.41] [%clk 0:02:31] } 35... b5?? { [%eval 0.0] } { Blunder. Bd3 was best. } { [%clk 0:03:20] } 36. h5?? { [%eval -3.64] } { Blunder. f5 was best. } { [%clk 0:02:28] } 36... gxh5 { [%eval -3.89] [%clk 0:03:18] } 37. f5 { [%eval -3.25] [%clk 0:02:23] } 37... Bd3?? { [%eval 6.38] } { Blunder. Kc8 was best. } { [%clk 0:00:47] } 38. Kd2?? { [%eval 0.0] } { Blunder. g6 was best. } { [%clk 0:02:05] } 38... Bxf5 { [%eval 0.0] [%clk 0:00:50] } 39. Nxf5 { [%eval -0.03] [%clk 0:02:09] } 39... Kc7 { [%eval -0.14] [%clk 0:00:24] } 40. Nd4 { [%clk 0:01:58] } 40... Kd7 { [%clk 0:00:20] } 41. Nxb5 { [%clk 0:02:02] } 41... a6 { [%clk 0:00:24] } 42. Nd4 { [%clk 0:02:06] } 42... a5 { [%clk 0:00:24] } 43. Nf3 { [%clk 0:02:01] } 43... Ke7 { [%clk 0:00:27] } 44. Kc3 { [%clk 0:02:04] } 44... Kf8 { [%clk 0:00:28] } 45. Kb3 { [%clk 0:02:06] } 45... Kg7 { [%clk 0:00:32] } 46. Nh4 { [%clk 0:02:07] } 46... d4 { [%clk 0:00:24] } 47. Kc4 { [%clk 0:02:11] } 47... a4 { [%clk 0:00:26] } 48. Kxd4 { [%clk 0:02:15] } 48... a3 { [%clk 0:00:20] } 49. Kc3 { [%clk 0:02:18] } 1-0