Event: Biel Chess Festival 2025 Rapid
Site: Biel, Switzerland
Date: 2025-07-13
White: Schweitzer, Olaf
WhiteElo: 1996
Black: Grzeskowiak, Antoni
BlackElo: 1801
Result: 1/2-1/2
ECO: B07
Opening: Pirc Defense: Byrne Variation
Variant: Standard
TimeControl: 15 min + 5 sec per move

1. e4 { [%eval 0.18] [%clk 0:15:08] } 1... d6 { [%eval 0.43] [%clk 0:15:09] } 2. d4 { [%eval 0.43] [%clk 0:15:11] } 2... Nf6 { [%eval 0.43] [%clk 0:15:13] } 3. Nc3 { [%eval 0.38] [%clk 0:15:14] } 3... g6 { [%eval 0.63] [%clk 0:15:16] } 4. Bg5 { [%eval 0.33] [%clk 0:15:01] } 4... Bg7 { [%eval 0.39] [%clk 0:15:06] } 5. f4 { [%eval 0.28] [%clk 0:15:04] } 5... c5 { [%eval 0.44] [%clk 0:14:05] } 6. dxc5 { [%eval 0.24] [%clk 0:10:09] } 6... Qa5 { [%eval 0.09] [%clk 0:13:52] } 7. Qd2 { [%eval 0.29] [%clk 0:10:02] } 7... Qxc5 { [%eval 0.23] [%clk 0:13:52] } 8. Nf3 { [%eval 0.11] [%clk 0:08:42] } 8... Nc6 { [%eval 0.42] [%clk 0:13:33] } 9. Bh4?! { [%eval -0.26] } { Inaccuracy. Bxf6 was best. } { [%clk 0:08:26] } 9... O-O { [%eval -0.21] [%clk 0:13:19] } 10. h3 { [%eval -0.33] [%clk 0:07:45] } 10... Be6 { [%eval -0.06] [%clk 0:11:50] } 11. Bd3 { [%eval -0.07] [%clk 0:07:22] } 11... Nb4?! { [%eval 0.72] } { Inaccuracy. Nd7 was best. } { [%clk 0:11:14] } 12. Bf2 { [%eval 0.7] [%clk 0:07:21] } 12... Nxd3+ { [%eval 0.74] [%clk 0:11:17] } 13. cxd3 { [%eval 0.78] [%clk 0:07:23] } 13... Qc7 { [%eval 0.95] [%clk 0:11:11] } 14. O-O { [%eval 0.91] [%clk 0:07:24] } 14... a6 { [%eval 0.85] [%clk 0:11:04] } 15. Rac1 { [%eval 0.84] [%clk 0:07:16] } 15... Qd8 { [%eval 0.9] [%clk 0:10:38] } 16. g4 { [%eval 0.67] [%clk 0:05:54] } 16... h5?! { [%eval 1.71] } { Inaccuracy. b5 was best. } { [%clk 0:09:54] } 17. f5 { [%eval 1.56] [%clk 0:02:54] } 17... hxg4 { [%eval 1.78] [%clk 0:08:27] } 18. hxg4 { [%eval 1.79] [%clk 0:02:57] } 18... Bd7 { [%eval 1.85] [%clk 0:08:05] } 19. Qg5 { [%eval 1.63] [%clk 0:03:01] } 19... Nh7?! { [%eval 2.53] } { Inaccuracy. e6 was best. } { [%clk 0:07:54] } 20. Qh4 { [%eval 2.61] [%clk 0:02:53] } 20... e6?! { [%eval 3.52] } { Inaccuracy. Bxc3 was best. } { [%clk 0:07:48] } 21. Qh3?? { [%eval 0.25] } { Blunder. g5 was best. } { [%clk 0:03:07] } 21... Ng5?? { [%eval 5.94] } { Blunder. gxf5 was best. } { [%clk 0:07:40] } 22. Nxg5 { [%eval 5.86] [%clk 0:02:43] } 22... Qxg5 { [%eval 5.63] [%clk 0:07:42] } 23. Bh4?? { [%eval -0.13] } { Blunder. Be3 was best. } { [%clk 0:02:39] } 23... Bd4+ { [%eval 0.04] [%clk 0:07:32] } 24. Kh1 { [%eval -0.3] [%clk 0:02:15] } 24... Qh6 { [%eval -0.3] [%clk 0:07:14] } 25. g5? { [%eval -1.65] } { Mistake. Qh2 was best. } { [%clk 0:01:44] } 25... Qh5 { [%eval -1.57] [%clk 0:07:15] } 26. f6 { [%eval -1.57] [%clk 0:01:41] } 26... Kh7? { [%eval 0.0] } { Mistake. d5 was best. } { [%clk 0:06:46] } 27. Kg2 { [%eval 0.0] [%clk 0:01:43] } 27... Rh8 { [%eval 0.03] [%clk 0:06:43] } 28. Rh1 { [%eval -0.16] [%clk 0:01:44] } 28... Kg8 { [%eval -0.16] [%clk 0:06:04] } 29. Qg3?? { [%eval -2.28] } { Blunder. Bg3 was best. } { [%clk 0:01:03] } 29... Be5?? { [%eval 0.19] } { Blunder. e5 was best. } { [%clk 0:05:29] } 30. Qf3 { [%eval -0.24] [%clk 0:01:03] } 30... Qxf3+ { [%eval 0.0] [%clk 0:05:22] } 31. Kxf3 { [%eval 0.0] [%clk 0:01:07] } 31... Bc6?! { [%eval 0.76] } { Inaccuracy. Rc8 was best. } { [%clk 0:04:57] } 32. Bf2 { [%eval 0.82] [%clk 0:01:04] } 32... Rxh1 { [%eval 0.71] [%clk 0:04:40] } 33. Rxh1 { [%eval 0.83] [%clk 0:01:07] } 33... d5 { [%eval 1.16] [%clk 0:04:41] } 34. d4? { [%eval -0.12] } { Mistake. exd5 was best. } { [%clk 0:01:08] } 34... dxe4+ { [%eval -0.12] [%clk 0:04:40] } 35. Nxe4 { [%eval -0.06] [%clk 0:01:08] } 35... Bc7 { [%eval -0.13] [%clk 0:04:24] } 36. Rh4 { [%eval -0.16] [%clk 0:00:43] } 36... Rd8 { [%eval -0.15] [%clk 0:04:01] } 37. Ke3? { [%eval -1.35] } { Mistake. Ke2 was best. } { [%clk 0:00:28] } 37... e5? { [%eval -0.07] } { Mistake. Rd5 was best. } { [%clk 0:03:51] } 38. Nc5?? { [%eval -2.89] } { Blunder. dxe5 was best. } { [%clk 0:00:07] } 38... exd4+?! { [%eval -1.79] } { Inaccuracy. Rd5 was best. } { [%clk 0:03:27] } 39. Rxd4 { [%eval -1.79] [%clk 0:00:06] } 39... Re8+ { [%eval -1.74] [%clk 0:03:12] } 40. Kd2?! { [%eval -2.88] } { Inaccuracy. Kd3 was best. } { [%clk 0:00:11] } 40... Be5?? { [%eval -0.74] } { Blunder. Re5 was best. } { [%clk 0:03:03] } 41. Rh4?! { [%eval -1.34] } { Inaccuracy. Rc4 was best. } { [%clk 0:00:14] } 41... Bxb2 { [%eval -1.42] [%clk 0:03:00] } 42. Be3?? { [%eval -3.71] } { Blunder. Nxb7 was best. } { [%clk 0:00:15] } 42... Be5? { [%eval -1.91] } { Mistake. Bc1+ was best. } { [%clk 0:02:51] } 43. Rb4 { [%eval -2.1] [%clk 0:00:16] } 43... Bd6 { [%eval -1.83] [%clk 0:02:43] } 44. Rb3?? { [%eval -4.16] } { Blunder. Rc4 was best. } { [%clk 0:00:17] } 44... b5?? { [%eval 0.0] } { Blunder. Rxe3 was best. } { [%clk 0:02:34] } 45. Nxa6 { [%eval 0.0] [%clk 0:00:19] } 45... Ra8 { [%eval -0.01] [%clk 0:02:26] } 46. Nb4 { [%eval 0.0] [%clk 0:00:22] } 46... Bxb4+ { [%eval 0.0] [%clk 0:02:23] } 47. Rxb4 { [%eval 0.0] [%clk 0:00:26] } 47... Rxa2+ { [%eval 0.0] [%clk 0:02:26] } 48. Kd3 { [%eval 0.03] [%clk 0:00:30] } 48... Rg2 { [%eval 0.05] [%clk 0:03:03] } 49. Rh4 { [%eval 0.0] [%clk 0:00:15] } 49... Bf3 { [%eval 0.02] [%clk 0:02:30] } 50. Rf4 { [%eval -0.02] [%clk 0:00:18] } 50... Bg4 { [%eval 0.01] [%clk 0:02:23] } 51. Rd4 { [%eval 0.0] } 51... Kh7 { [%eval 0.0] [%clk 0:02:20] } 52. Rd8 { [%eval 0.0] [%clk 0:00:20] } 1/2-1/2