Event: Biel Chess Festival 2025 MTO
Site: Biel, Switzerland
Date: 2025-07-18
White: Lacan Rus, David
WhiteTitle: FM
WhiteElo: 2369
Black: Leonov, Leonid
BlackElo: 2089
Result: 1-0
ECO: B51
Opening: Sicilian Defense: Moscow Variation
Variant: Standard
TimeControl: 100 min 40 moves + 30 min Rest + 30 sec per move

1. e4 { [%eval 0.18] [%clk 1:40:58] } 1... c5 { [%eval 0.25] [%clk 1:40:30] } 2. Nf3 { [%eval 0.2] [%clk 1:41:18] } 2... d6 { [%eval 0.31] [%clk 1:40:53] } 3. Bb5+ { [%eval 0.14] [%clk 1:41:40] } 3... Nd7 { [%eval 0.12] [%clk 1:41:12] } 4. d4 { [%eval 0.13] [%clk 1:41:05] } 4... cxd4 { [%eval 0.11] [%clk 1:41:34] } 5. Qxd4 { [%eval 0.25] [%clk 1:41:27] } 5... a6 { [%eval 0.11] [%clk 1:42:00] } 6. Bxd7+ { [%eval 0.14] [%clk 1:41:05] } 6... Bxd7 { [%eval 0.05] [%clk 1:42:20] } 7. c4 { [%eval -0.04] [%clk 1:40:58] } 7... Nf6 { [%eval 0.09] [%clk 1:41:49] } 8. O-O { [%eval -0.11] [%clk 1:40:49] } 8... e6 { [%eval 0.15] [%clk 1:41:51] } 9. Nc3 { [%eval 0.19] [%clk 1:40:24] } 9... Be7 { [%eval 0.16] [%clk 1:41:23] } 10. a4 { [%eval 0.16] [%clk 1:37:35] } 10... O-O { [%eval 0.15] [%clk 1:40:43] } 11. a5 { [%eval 0.11] [%clk 1:33:27] } 11... Rc8 { [%eval 0.19] [%clk 1:37:01] } 12. b3 { [%eval 0.1] [%clk 1:32:05] } 12... Bc6 { [%eval 0.12] [%clk 1:34:16] } 13. Bb2 { [%eval 0.0] [%clk 1:29:56] } 13... Qc7 { [%eval 0.07] [%clk 1:29:20] } 14. Rfd1 { [%eval 0.1] [%clk 1:27:37] } 14... Rfd8 { [%eval 0.0] [%clk 1:27:10] } 15. Qe3 { [%eval -0.04] [%clk 1:23:11] } 15... h6 { [%eval -0.01] [%clk 1:17:35] } 16. Nd4 { [%eval -0.09] [%clk 1:20:50] } 16... Be8 { [%eval -0.05] [%clk 1:02:36] } 17. h3 { [%eval -0.03] [%clk 1:19:07] } 17... Nd7? { [%eval 1.6] } { Mistake. Rb8 was best. } { [%clk 0:49:16] } 18. f4? { [%eval 0.31] } { Mistake. Nf5 was best. } { [%clk 1:12:37] } 18... Bf6 { [%eval 0.4] [%clk 0:46:39] } 19. Kh1 { [%eval 0.05] [%clk 1:07:28] } 19... Qc5 { [%eval 0.37] [%clk 0:44:38] } 20. Qg3?! { [%eval -0.22] } { Inaccuracy. Ba3 was best. } { [%clk 0:52:08] } 20... g6?! { [%eval 0.8] } { Inaccuracy. Qh5 was best. } { [%clk 0:40:29] } 21. Nf3?! { [%eval 0.24] } { Inaccuracy. Qe3 was best. } { [%clk 0:40:52] } 21... Qb4?! { [%eval 0.93] } { Inaccuracy. Bg7 was best. } { [%clk 0:36:21] } 22. e5? { [%eval -0.69] } { Mistake. Nd4 was best. } { [%clk 0:37:09] } 22... dxe5?! { [%eval 0.0] } { Inaccuracy. Qxb3 was best. } { [%clk 0:36:05] } 23. Ne4 { [%eval -0.01] [%clk 0:37:18] } 23... Bg7 { [%eval -0.01] [%clk 0:23:40] } 24. Nxe5 { [%eval 0.0] [%clk 0:27:06] } 24... Nc5 { [%eval 0.07] [%clk 0:18:59] } 25. Rxd8 { [%eval -0.19] [%clk 0:23:48] } 25... Rxd8?? { [%eval 3.29] } { Blunder. Nxe4 was best. } { [%clk 0:18:13] } 26. Qh4 { [%eval 2.97] [%clk 0:23:07] } 26... Rc8 { [%eval 2.99] [%clk 0:14:19] } 27. Ba3 { [%eval 3.13] [%clk 0:21:51] } 27... Qxa5 { [%eval 3.0] [%clk 0:13:34] } 28. Nxc5 { [%eval 2.95] [%clk 0:19:51] } 28... g5 { [%eval 3.31] [%clk 0:07:07] } 29. Qg4 { [%eval 3.12] [%clk 0:17:07] } 29... f5 { [%eval 3.51] [%clk 0:05:18] } 30. Qd1 { [%eval 3.39] [%clk 0:15:15] } 30... Rxc5?! { [%eval 4.3] } { Inaccuracy. gxf4 was best. } { [%clk 0:03:23] } 31. b4 { [%eval 4.27] [%clk 0:15:07] } 31... Qc7 { [%eval 4.27] [%clk 0:03:42] } 32. bxc5 { [%eval 4.19] [%clk 0:14:16] } 32... gxf4 { [%eval 3.81] [%clk 0:04:04] } 33. Nd3 { [%eval 3.23] [%clk 0:12:40] } 33... e5 { [%eval 3.89] [%clk 0:04:13] } 34. Nb4 { [%eval 3.93] [%clk 0:12:08] } 34... e4 { [%eval 4.0] [%clk 0:04:06] } 35. Rb1 { [%eval 4.02] [%clk 0:11:33] } 35... f3 { [%eval 4.04] [%clk 0:03:53] } 36. Qd6 { [%eval 3.89] [%clk 0:11:51] } 36... fxg2+ { [%eval 4.41] [%clk 0:03:47] } 37. Kxg2 { [%eval 4.42] [%clk 0:12:14] } 37... Qa5 { [%eval 4.37] [%clk 0:03:56] } 38. Bc1 { [%eval 4.32] [%clk 0:11:35] } 38... Bh5 { [%eval 4.29] [%clk 0:03:38] } 39. Qe6+ { [%eval 4.1] [%clk 0:10:37] } 39... Kh7?! { [%eval 5.3] } { Inaccuracy. Bf7 was best. } { [%clk 0:03:30] } 40. Qe7 { [%eval 4.52] [%clk 0:08:32] } 40... Bf3+?! { [%eval 5.86] } { Inaccuracy. Kg8 was best. } { [%clk 0:02:50] } 41. Kh2 { [%eval 5.65] [%clk 0:08:34] } 41... Kg6?! { [%eval 8.94] } { Inaccuracy. Kg8 was best. } { [%clk 0:02:21] } 42. Bf4 { [%eval 9.04] [%clk 0:08:23] } 42... Qa3? { [%eval #12] } { Checkmate is now unavoidable. Bg2 was best. } { [%clk 0:01:40] } 43. Rg1+ { [%eval #11] [%clk 0:08:31] } 43... Kh5 { [%eval #2] [%clk 0:00:40] } 44. Rg5+ { [%eval #1] [%clk 0:08:48] } 1-0