Event: Biel Chess Festival 2025 MTO
Site: Biel, Switzerland
Date: 2025-07-15
White: Mostertman, Milan
WhiteTitle: FM
WhiteElo: 2212
Black: Dau Khuong Duy
BlackTitle: IM
BlackElo: 2456
Result: 1/2-1/2
ECO: B22
Opening: Sicilian Defense: Delayed Alapin Variation
Variant: Standard
TimeControl: 100 min 40 moves + 30 min Rest + 30 sec per move

1. e4 { [%eval 0.18] [%clk 1:40:34] } 1... c5 { [%eval 0.25] [%clk 1:40:40] } 2. Nf3 { [%eval 0.2] [%clk 1:40:48] } 2... e6 { [%eval 0.28] [%clk 1:40:52] } 3. c3 { [%eval 0.06] [%clk 1:38:27] } 3... d5 { [%eval 0.08] [%clk 1:40:55] } 4. exd5 { [%eval 0.22] [%clk 1:38:23] } 4... Qxd5 { [%eval 0.2] [%clk 1:41:06] } 5. d4 { [%eval 0.17] [%clk 1:37:51] } 5... Nf6 { [%eval 0.18] [%clk 1:40:59] } 6. Na3 { [%eval 0.08] [%clk 1:35:53] } 6... a6 { [%eval 0.16] [%clk 1:41:07] } 7. Nc4 { [%eval 0.21] [%clk 1:32:51] } 7... Nbd7 { [%eval 0.15] [%clk 1:41:16] } 8. Be2 { [%eval 0.21] [%clk 1:23:29] } 8... Be7 { [%eval 0.46] [%clk 1:36:34] } 9. O-O { [%eval 0.5] [%clk 1:20:10] } 9... O-O { [%eval 0.64] [%clk 1:31:32] } 10. Nfe5 { [%eval 0.55] [%clk 1:11:30] } 10... cxd4 { [%eval 0.61] [%clk 1:29:49] } 11. Bf3 { [%eval 0.61] [%clk 1:11:05] } 11... Qc5 { [%eval 0.49] [%clk 1:29:02] } 12. cxd4 { [%eval 0.6] [%clk 1:11:25] } 12... Qc7 { [%eval 0.6] [%clk 1:29:23] } 13. Bf4 { [%eval 0.27] [%clk 1:10:40] } 13... Nxe5 { [%eval 0.33] [%clk 1:25:28] } 14. Nxe5 { [%eval 0.34] [%clk 1:08:39] } 14... Qb6?! { [%eval 1.02] } { Inaccuracy. Qd8 was best. } { [%clk 1:24:12] } 15. Nc4 { [%eval 0.98] [%clk 1:03:47] } 15... Qb5 { [%eval 1.01] [%clk 1:03:00] } 16. Rc1?! { [%eval 0.31] } { Inaccuracy. b3 was best. } { [%clk 0:53:09] } 16... Bd7 { [%eval 0.34] [%clk 1:04:56] } 17. b3 { [%eval 0.11] [%clk 0:45:27] } 17... Bc6 { [%eval 0.1] [%clk 0:59:00] } 18. Nd6 { [%eval 0.0] [%clk 0:36:14] } 18... Bxf3 { [%eval -0.01] [%clk 0:56:26] } 19. Qxf3 { [%eval -0.06] [%clk 0:36:41] } 19... Bxd6 { [%eval -0.01] [%clk 0:56:36] } 20. Bxd6 { [%eval -0.01] [%clk 0:37:04] } 20... Rfc8 { [%eval 0.01] [%clk 0:56:57] } 21. Be5 { [%eval -0.3] [%clk 0:33:59] } 21... Nd7 { [%eval -0.03] [%clk 0:54:45] } 22. Bc7 { [%eval -0.07] [%clk 0:31:02] } 22... Nf6 { [%eval 0.15] [%clk 0:51:41] } 23. Be5 { [%eval -0.26] [%clk 0:34:47] } 23... Qd5 { [%eval -0.11] [%clk 0:50:41] } 24. Qg3 { [%eval -0.11] [%clk 0:31:49] } 24... Ne8 { [%eval -0.11] [%clk 0:50:46] } 25. Qe3 { [%eval -0.12] [%clk 0:31:54] } 25... f6 { [%eval -0.12] [%clk 0:45:24] } 26. Bg3 { [%eval -0.11] [%clk 0:31:03] } 26... Kf7 { [%eval -0.07] [%clk 0:45:21] } 27. h3 { [%eval -0.16] [%clk 0:29:25] } 27... Rxc1 { [%eval -0.11] [%clk 0:43:47] } 28. Rxc1 { [%eval -0.13] [%clk 0:29:47] } 28... Rd8 { [%eval -0.05] [%clk 0:44:12] } 29. Re1 { [%eval -0.37] [%clk 0:24:03] } 29... h6 { [%eval -0.45] [%clk 0:41:59] } 30. Re2?! { [%eval -1.26] } { Inaccuracy. h4 was best. } { [%clk 0:21:10] } 30... g5 { [%eval -1.26] [%clk 0:38:41] } 31. Re1 { [%eval -1.17] [%clk 0:17:54] } 31... Ng7 { [%eval -1.58] [%clk 0:34:09] } 32. Rc1 { [%eval -1.39] [%clk 0:18:07] } 32... Nf5 { [%eval -1.37] [%clk 0:32:48] } 33. Rc7+?! { [%eval -2.03] } { Inaccuracy. Qe2 was best. } { [%clk 0:17:32] } 33... Rd7?! { [%eval -1.3] } { Inaccuracy. Kg6 was best. } { [%clk 0:32:12] } 34. Rxd7+ { [%eval -1.56] [%clk 0:16:52] } 34... Qxd7 { [%eval -1.47] [%clk 0:32:36] } 35. Qe4 { [%eval -1.57] [%clk 0:16:48] } 35... Kg7 { [%eval -1.45] [%clk 0:30:07] } 36. h4 { [%eval -1.67] [%clk 0:15:04] } 36... Nxd4 { [%eval -1.26] [%clk 0:29:45] } 37. hxg5 { [%eval -1.77] [%clk 0:15:24] } 37... hxg5 { [%eval -1.72] [%clk 0:30:09] } 38. f3 { [%eval -1.68] [%clk 0:15:46] } 38... e5 { [%eval -1.53] [%clk 0:28:11] } 39. Bf2? { [%eval -2.82] } { Mistake. Be1 was best. } { [%clk 0:15:17] } 39... Nb5? { [%eval -1.15] } { Mistake. Qc6 was best. } { [%clk 0:25:11] } 40. a4?! { [%eval -2.26] } { Inaccuracy. Be3 was best. } { [%clk 0:11:39] } 40... Nc3?! { [%eval -1.63] } { Inaccuracy. Nd4 was best. } { [%clk 0:23:30] } 41. Qc4 { [%eval -1.84] [%clk 0:11:25] } 41... Nd5 { [%eval -1.26] [%clk 0:19:40] } 42. b4? { [%eval -2.59] } { Mistake. Qd3 was best. } { [%clk 0:08:07] } 42... Nf4 { [%eval -2.5] [%clk 0:20:24] } 43. Be3 { [%eval -2.2] [%clk 0:02:22] } 43... b5? { [%eval -0.54] } { Mistake. Qc6 was best. } { [%clk 0:18:11] } 44. axb5 { [%eval -0.33] [%clk 0:01:18] } 44... axb5 { [%eval -0.25] [%clk 0:18:36] } 45. Qe4 { [%eval -0.37] [%clk 0:24:21] } 45... Ne2+ { [%eval -0.4] [%clk 0:47:05] } 46. Kh2 { [%eval -0.44] [%clk 0:21:24] } 46... Qc8 { [%eval 0.0] [%clk 0:44:24] } 47. Bxg5 { [%eval 0.0] [%clk 0:20:20] } 47... Nc3 { [%eval 0.0] [%clk 0:44:19] } 48. Qh4 { [%eval 0.0] [%clk 0:19:17] } 48... fxg5 { [%eval 0.0] [%clk 0:44:41] } 49. Qxg5+ { [%eval 0.0] [%clk 0:19:42] } 49... Kf7 { [%eval 0.0] [%clk 0:45:05] } 50. Qh5+ { [%eval 0.0] [%clk 0:20:01] } 50... Kf6 { [%eval 0.0] [%clk 0:45:24] } 51. Qh6+ { [%eval 0.0] [%clk 0:15:42] } 51... Ke7 { [%eval 0.0] [%clk 0:45:10] } 52. Qh7+ { [%eval 0.0] [%clk 0:15:56] } 52... Kd6 { [%eval 0.0] [%clk 0:45:28] } 53. Qd3+ { [%eval 0.0] [%clk 0:16:22] } 53... Ke7 { [%eval 0.0] [%clk 0:43:00] } 54. Qh7+ { [%eval 0.0] [%clk 0:16:35] } 54... Kf6 { [%eval 0.0] [%clk 0:42:58] } 55. Qh6+ { [%eval 0.0] [%clk 0:16:13] } 55... Ke7 { [%eval 0.0] [%clk 0:42:16] } 56. Qh7+ { [%eval -0.12] [%clk 0:14:26] } 1/2-1/2