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

1. b4 { [%eval -0.06] [%clk 0:15:04] } 1... e5?! { [%eval 0.5] } { Inaccuracy. b6 was best. } { [%clk 0:14:57] } 2. c4 { [%eval 0.07] [%clk 0:14:17] } 2... b6 { [%eval 0.0] [%clk 0:14:33] } 3. Bb3 { [%eval -0.48] [%clk 0:13:57] } 3... Nc6 { [%eval -0.16] [%clk 0:13:32] } 4. Bc3?! { [%eval -1.01] } { Inaccuracy. g4 was best. } { [%clk 0:14:00] } 4... Bf6?! { [%eval -0.17] } { Inaccuracy. Nd4 was best. } { [%clk 0:11:24] } 5. e3?! { [%eval -0.82] } { Inaccuracy. g4 was best. } { [%clk 0:13:26] } 5... Nd6 { [%eval -0.55] [%clk 0:10:50] } 6. Ne2 { [%eval -0.91] [%clk 0:12:26] } 6... g5 { [%eval -0.86] [%clk 0:10:28] } 7. d3 { [%eval -0.8] [%clk 0:12:06] } 7... h5 { [%eval -0.84] [%clk 0:09:40] } 8. b5 { [%eval -1.29] [%clk 0:11:32] } 8... Ne7?! { [%eval -0.68] } { Inaccuracy. Nd8 was best. } { [%clk 0:09:42] } 9. Bb4 { [%eval -0.75] [%clk 0:11:22] } 9... h4 { [%eval -0.45] [%clk 0:09:17] } 10. h3 { [%eval -0.41] [%clk 0:11:01] } 10... Ndf5 { [%eval -0.47] [%clk 0:08:29] } 11. e4 { [%eval -0.82] [%clk 0:10:58] } 11... Nd4 { [%eval -0.77] [%clk 0:08:07] } 12. Nxd4 { [%eval -0.73] [%clk 0:11:01] } 12... exd4 { [%eval -0.74] [%clk 0:08:09] } 13. Bd1 { [%eval -1.18] [%clk 0:10:46] } 13... d6 { [%eval -1.16] [%clk 0:07:40] } 14. Bg4 { [%eval -1.28] [%clk 0:10:44] } 14... Ng6 { [%eval -1.18] [%clk 0:07:08] } 15. O-O-O { [%eval -1.21] [%clk 0:10:31] } 15... Ne5 { [%eval -0.78] [%clk 0:06:57] } 16. Bf5 { [%eval -0.89] [%clk 0:10:31] } 16... Bb7 { [%eval -0.68] [%clk 0:05:58] } 17. Kc2 { [%eval -1.2] [%clk 0:10:17] } 17... a6 { [%eval -1.27] [%clk 0:05:23] } 18. a4?! { [%eval -1.98] } { Inaccuracy. g3 was best. } { [%clk 0:10:00] } 18... axb5 { [%eval -2.0] [%clk 0:05:17] } 19. axb5 { [%eval -2.01] [%clk 0:09:52] } 19... Ra8 { [%eval -1.76] [%clk 0:05:17] } 20. Na3 { [%eval -1.71] [%clk 0:09:55] } 20... Ke7 { [%eval -1.7] [%clk 0:05:04] } 21. g3? { [%eval -3.2] } { Mistake. Ra1 was best. } { [%clk 0:09:30] } 21... hxg3 { [%eval -3.07] [%clk 0:04:55] } 22. fxg3? { [%eval -4.85] } { Mistake. Rxg3 was best. } { [%clk 0:09:17] } 22... Ra4 { [%eval -4.86] [%clk 0:04:55] } 23. Kb3 { [%eval -4.81] [%clk 0:09:16] } 23... Rga8 { [%eval -5.09] [%clk 0:04:47] } 24. Rge1 { [%eval -6.43] [%clk 0:07:51] } 24... Bc8?? { [%eval -2.97] } { Blunder. Rxb4+ was best. } { [%clk 0:04:24] } 25. Qf1 { [%eval -3.2] [%clk 0:07:43] } 25... Be6 { [%eval -3.23] [%clk 0:04:00] } 26. Ra1 { [%eval -3.15] [%clk 0:07:27] } 26... R4a7?? { [%eval -0.56] } { Blunder. Qb8 was best. } { [%clk 0:03:35] } 27. Red1?! { [%eval -1.16] } { Inaccuracy. Nc2 was best. } { [%clk 0:06:03] } 27... Qh5?! { [%eval -0.49] } { Inaccuracy. Bxf5 was best. } { [%clk 0:03:27] } 28. Nc2?? { [%eval -2.3] } { Blunder. g4 was best. } { [%clk 0:03:37] } 28... Rxa1 { [%eval -2.35] [%clk 0:03:24] } 29. Rxa1 { [%eval -3.0] [%clk 0:03:41] } 29... Rxa1 { [%eval -2.87] [%clk 0:03:25] } 30. Nxa1 { [%eval -2.87] [%clk 0:03:46] } 30... Bxf5 { [%eval -2.75] [%clk 0:03:09] } 31. exf5 { [%eval -2.46] [%clk 0:03:46] } 31... Nd7?? { [%eval 0.0] } { Blunder. g4 was best. } { [%clk 0:02:26] } 32. g4 { [%eval -0.02] [%clk 0:03:46] } 32... Qh4 { [%eval 0.06] [%clk 0:02:25] } 33. Be1 { [%eval -0.39] [%clk 0:03:49] } 33... Qh8 { [%eval -0.62] [%clk 0:02:21] } 34. Kc2?? { [%eval -2.66] } { Blunder. Qh1 was best. } { [%clk 0:03:47] } 34... Qa8 { [%eval -2.74] [%clk 0:02:20] } 35. Kd2?? { [%eval -6.55] } { Blunder. Kb1 was best. } { [%clk 0:03:19] } 35... Qxa1 { [%eval -6.36] [%clk 0:02:10] } 36. Qe2+ { [%eval -6.22] [%clk 0:03:21] } 36... Be5 { [%eval -6.34] [%clk 0:02:06] } 37. Qe4 { [%eval -6.53] [%clk 0:03:16] } 37... Qb2+ { [%eval -6.29] [%clk 0:01:46] } 38. Kd1 { [%eval -6.16] [%clk 0:03:19] } 38... Nc5 { [%eval -6.47] [%clk 0:01:01] } 39. f6+ { [%eval -6.18] [%clk 0:03:16] } 39... Kxf6 { [%eval -5.66] [%clk 0:00:58] } 40. Qf5+ { [%eval -5.6] [%clk 0:03:18] } 40... Ke7 { [%eval -5.45] [%clk 0:00:56] } 41. Qxg5+ { [%eval -6.7] [%clk 0:03:21] } 41... Bf6 { [%eval -6.8] [%clk 0:00:54] } 42. Qf5 { [%eval -6.97] [%clk 0:03:26] } 42... Qb1+ { [%eval -6.59] [%clk 0:00:33] } 43. Ke2 { [%eval -6.8] [%clk 0:03:29] } 43... Qc2+ { [%eval -6.93] [%clk 0:00:27] } 44. Bd2 { [%eval -8.78] [%clk 0:03:33] } 44... Nb3 { [%eval -8.55] [%clk 0:00:23] } 45. Qe4+ { [%eval -9.89] [%clk 0:03:24] } 45... Be5 { [%eval -9.09] [%clk 0:00:27] } 46. Qc6? { [%eval #-9] } { Checkmate is now unavoidable. c5 was best. } { [%clk 0:03:03] } 46... Qxd2+ { [%eval #-8] [%clk 0:00:30] } 47. Kf3 { [%eval #-8] [%clk 0:03:07] } 47... Qf4+ { [%eval #-7] [%clk 0:00:33] } 48. Ke2 { [%eval #-4] [%clk 0:03:03] } 48... Qe3+ { [%eval #-3] [%clk 0:00:34] } 49. Kf1 { [%eval #-3] [%clk 0:03:06] } 49... Nd2+ { [%eval #-2] [%clk 0:00:38] } 50. Kg2 { [%eval #-2] [%clk 0:03:07] } 50... Qg3+ { [%eval #-1] [%clk 0:00:37] } 0-1