Event: Biel Chess Festival MTO
Site: Biel, Switzerland
Date: 2024-07-17
White: Song, Ethan
Black: Mendonca, Leon Luke
BlackTitle: GM
BlackElo: 2615
Result: 0-1
ECO: B52
Opening: Sicilian Defense: Moscow Variation, Main Line
Variant: Standard
TimeControl: 100'/40, fb 50'/20, fb 15' + 30''/mv

1. e4 { [%eval 0.15] [%clk 1:40:57] } 1... c5 { [%eval 0.25] [%clk 1:36:50] } 2. Nf3 { [%eval 0.24] [%clk 1:41:14] } 2... d6 { [%eval 0.26] [%clk 1:37:02] } 3. Bb5+ { [%eval 0.18] [%clk 1:41:36] } 3... Bd7 { [%eval 0.22] [%clk 1:36:38] } 4. Bxd7+ { [%eval 0.2] [%clk 1:41:49] } 4... Nxd7 { [%eval 0.24] [%clk 1:36:35] } 5. O-O { [%eval 0.18] [%clk 1:41:27] } 5... Ngf6 { [%eval 0.19] [%clk 1:37:01] } 6. Qe2 { [%eval 0.14] [%clk 1:41:32] } 6... e6 { [%eval 0.3] [%clk 1:36:31] } 7. c3 { [%eval 0.0] [%clk 1:41:29] } 7... Be7 { [%eval 0.07] [%clk 1:36:20] } 8. d4 { [%eval 0.11] [%clk 1:41:30] } 8... O-O { [%eval 0.13] [%clk 1:36:25] } 9. Rd1 { [%eval 0.0] [%clk 1:39:26] } 9... cxd4 { [%eval 0.07] [%clk 1:26:35] } 10. cxd4 { [%eval 0.09] [%clk 1:39:28] } 10... b5 { [%eval 0.0] [%clk 1:24:52] } 11. e5 { [%eval 0.0] [%clk 1:34:34] } 11... dxe5 { [%eval 0.01] [%clk 1:24:26] } 12. dxe5 { [%eval 0.0] [%clk 1:33:54] } 12... Nd5 { [%eval 0.0] [%clk 1:24:52] } 13. Nc3 { [%eval -0.05] [%clk 1:30:48] } 13... Nxc3 { [%eval -0.07] [%clk 1:18:02] } 14. bxc3 { [%eval -0.06] [%clk 1:31:15] } 14... Qc7 { [%eval -0.07] [%clk 1:14:41] } 15. Qxb5 { [%eval -0.05] [%clk 1:25:46] } 15... Nb6 { [%eval -0.11] [%clk 1:12:01] } 16. Be3 { [%eval 0.0] [%clk 1:21:37] } 16... Nd5 { [%eval -0.04] [%clk 1:04:10] } 17. Bd4 { [%eval -0.21] [%clk 1:18:40] } 17... Rfc8 { [%eval 0.05] [%clk 0:59:43] } 18. Rac1 { [%eval 0.11] [%clk 1:14:56] } 18... a6 { [%eval 0.12] [%clk 0:47:00] } 19. Qa4 { [%eval 0.0] [%clk 1:02:16] } 19... Qc4 { [%eval 0.12] [%clk 0:40:51] } 20. Qxc4 { [%eval 0.16] [%clk 0:59:04] } 20... Rxc4 { [%eval 0.13] [%clk 0:41:19] } 21. Nd2 { [%eval 0.1] [%clk 0:52:15] } 21... Ra4 { [%eval 0.11] [%clk 0:40:00] } 22. g3 { [%eval 0.0] [%clk 0:49:42] } 22... Rxa2 { [%eval 0.0] [%clk 0:36:36] } 23. Ne4 { [%eval -0.04] [%clk 0:48:53] } 23... a5 { [%eval -0.01] [%clk 0:34:09] } 24. c4 { [%eval 0.0] [%clk 0:47:12] } 24... Nb4 { [%eval -0.04] [%clk 0:33:37] } 25. Bc3 { [%eval -0.29] [%clk 0:44:06] } 25... Re2 { [%eval -0.26] [%clk 0:28:23] } 26. Bxb4?! { [%eval -1.05] } { Inaccuracy. Re1 was best. } { [%clk 0:39:37] } 26... axb4 { [%eval -1.17] [%clk 0:28:02] } 27. Nd6? { [%eval -2.43] } { Mistake. Re1 was best. } { [%clk 0:30:08] } 27... Rxe5?? { [%eval -0.53] } { Blunder. b3 was best. } { [%clk 0:15:52] } 28. c5 { [%eval -0.39] [%clk 0:29:29] } 28... Kf8 { [%eval -0.35] [%clk 0:03:03] } 29. Nb7 { [%eval -0.5] [%clk 0:20:11] } 29... Rb8 { [%eval -0.69] [%clk 0:01:23] } 30. Rd7 { [%eval -0.73] [%clk 0:16:27] } 30... Ke8 { [%eval -0.44] [%clk 0:01:36] } 31. Rc7 { [%eval -0.46] [%clk 0:10:08] } 31... Rd5 { [%eval -0.45] [%clk 0:02:01] } 32. c6?? { [%eval -2.49] } { Blunder. Rc4 was best. } { [%clk 0:08:38] } 32... Ra8 { [%eval -2.52] [%clk 0:00:38] } 33. Kg2 { [%eval -2.46] [%clk 0:08:07] } 33... g5?? { [%eval -0.38] } { Blunder. b3 was best. } { [%clk 0:00:55] } 34. Ra1 { [%eval -0.44] [%clk 0:06:35] } 34... Rb8 { [%eval -0.38] [%clk 0:00:35] } 35. Ra7?? { [%eval -3.74] } { Blunder. Ra6 was best. } { [%clk 0:06:19] } 35... b3 { [%eval -3.63] [%clk 0:00:36] } 36. Na5 { [%eval -3.69] [%clk 0:06:28] } 36... Bd6 { [%eval -3.88] [%clk 0:00:38] } 37. Rcb7 { [%eval -3.97] [%clk 0:04:49] } 37... Rxb7 { [%eval -3.83] [%clk 0:00:46] } 38. Nxb7 { [%eval -4.31] [%clk 0:04:42] } 38... Be5 { [%eval -4.35] [%clk 0:00:34] } 39. Ra3 { [%eval -4.78] [%clk 0:03:48] } 39... Rb5 { [%eval -4.86] [%clk 0:00:41] } 40. f4 { [%eval -5.1] [%clk 0:03:28] } 40... gxf4 { [%eval -5.12] [%clk 0:01:07] } 41. gxf4 { [%eval -5.28] [%clk 0:03:50] } 41... b2 { [%eval -5.35] [%clk 0:50:07] } 42. fxe5 { [%eval -5.28] [%clk 0:54:09] } 42... b1=Q { [%eval -5.21] [%clk 0:50:25] } 43. Nd6+ { [%eval -5.05] [%clk 0:54:34] } 43... Kd8 { [%clk 0:49:57] } 44. Ra8+ { [%clk 0:54:50] } 44... Rb8 { [%clk 0:50:19] } 0-1