Event: Ronda 4: Sandoval Mercado, Carlos - Quesada Perez, Luis Ernesto
Site: https://lichess.org/broadcast/copa-independencia-2025--abierta/ronda-4/1NYNvGYY/pYnaeIow
Date: 2025-09-11
White: Sandoval Mercado, Carlos
WhiteTitle: IM
WhiteElo: 2410
Black: Quesada Perez, Luis Ernesto
BlackTitle: GM
BlackElo: 2559
Result: 1-0
ECO: D46
Opening: Semi-Slav Defense: Chigorin Defense
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:58] } 1... d5 { [%eval 0.18] [%clk 1:29:54] } 2. c4 { [%eval 0.18] [%clk 1:31:22] } 2... c6 { [%eval 0.21] [%clk 1:30:12] } 3. Nf3 { [%eval 0.2] [%clk 1:30:43] } 3... Nf6 { [%eval 0.24] [%clk 1:30:34] } 4. Nc3 { [%eval 0.16] [%clk 1:30:32] } 4... e6 { [%eval 0.12] [%clk 1:30:44] } 5. e3 { [%eval 0.21] [%clk 1:30:04] } 5... Nbd7 { [%eval 0.2] [%clk 1:31:07] } 6. Qc2 { [%eval 0.22] [%clk 1:29:52] } 6... Bd6 { [%eval 0.17] [%clk 1:31:30] } 7. Bd3 { [%eval 0.15] [%clk 1:30:14] } 7... O-O { [%eval 0.29] [%clk 1:30:07] } 8. O-O { [%eval 0.32] [%clk 1:30:40] } 8... dxc4 { [%eval 0.19] [%clk 1:30:30] } 9. Bxc4 { [%eval 0.35] [%clk 1:31:06] } 9... b5 { [%eval 0.21] [%clk 1:30:53] } 10. Bd3 { [%eval 0.25] [%clk 1:30:38] } 10... Bb7 { [%eval 0.37] [%clk 1:31:17] } 11. a3 { [%eval 0.23] [%clk 1:29:49] } 11... a5 { [%eval 0.29] [%clk 1:25:01] } 12. Bd2 { [%eval -0.05] [%clk 1:22:02] } 12... Rc8 { [%eval -0.03] [%clk 1:18:13] } 13. Ng5 { [%eval 0.0] [%clk 1:03:45] } 13... h6 { [%eval 0.04] [%clk 0:45:27] } 14. Nge4 { [%eval 0.03] [%clk 1:02:04] } 14... Be7 { [%eval -0.05] [%clk 0:44:25] } 15. Nxf6+ { [%eval -0.04] [%clk 1:00:24] } 15... Nxf6 { [%eval -0.08] [%clk 0:43:59] } 16. Ne4 { [%eval 0.0] [%clk 0:59:08] } 16... Nxe4 { [%eval 0.13] [%clk 0:44:12] } 17. Bxe4 { [%eval 0.15] [%clk 0:59:30] } 17... b4 { [%eval 0.14] [%clk 0:44:39] } 18. Rfc1 { [%eval 0.17] [%clk 0:46:17] } 18... Qb6 { [%eval 0.39] [%clk 0:42:50] } 19. Qa4 { [%eval 0.43] [%clk 0:43:22] } 19... c5?! { [%eval 1.38] } { Inaccuracy. e5 was best. } { [%clk 0:38:32] } 20. dxc5 { [%eval 1.34] [%clk 0:40:19] } 20... Bxc5 { [%eval 1.44] [%clk 0:18:51] } 21. Bxb7 { [%eval 1.25] [%clk 0:39:48] } 21... Qxb7 { [%eval 1.36] [%clk 0:19:19] } 22. Qxa5 { [%eval 1.29] [%clk 0:40:01] } 22... bxa3? { [%eval 2.62] } { Mistake. Rcd8 was best. } { [%clk 0:13:17] } 23. Rxc5 { [%eval 2.5] [%clk 0:30:39] } 23... axb2 { [%eval 3.13] [%clk 0:13:38] } 24. Rb1 { [%eval 3.06] [%clk 0:31:05] } 24... Ra8 { [%eval 3.1] [%clk 0:13:16] } 25. Qc3 { [%eval 3.08] [%clk 0:26:42] } 25... Rfb8 { [%eval 3.54] [%clk 0:10:05] } 26. h3 { [%eval 3.32] [%clk 0:25:20] } 26... Ra2 { [%eval 3.85] [%clk 0:09:37] } 27. Kh2 { [%eval 3.52] [%clk 0:23:06] } 27... Qa6 { [%eval 4.0] [%clk 0:03:20] } 28. f4 { [%eval 3.9] [%clk 0:15:29] } 28... f6 { [%eval 3.98] [%clk 0:00:51] } 29. Rc6 { [%eval 3.66] [%clk 0:13:17] } 29... Qb5 { [%eval 4.32] [%clk 0:00:38] } 30. Rxe6 { [%eval 4.35] [%clk 0:08:49] } 30... Qf5?! { [%eval 6.35] } { Inaccuracy. Ra7 was best. } { [%clk 0:00:31] } 31. Qc4 { [%eval 5.75] [%clk 0:06:05] } 31... Qxb1?! { [%eval 8.39] } { Inaccuracy. Kh7 was best. } { [%clk 0:01:00] } 32. Re8+ { [%eval #12] [%clk 0:06:23] } 32... Kh7 { [%eval #12] [%clk 0:01:30] } 33. Rxb8 { [%eval 8.6] [%clk 0:06:32] } 33... Ra1? { [%eval #9] } { Checkmate is now unavoidable. Kg6 was best. } { [%clk 0:00:52] } 34. Be1?? { [%eval 4.79] } { Lost forced checkmate sequence. Qg8+ was best. } { [%clk 0:02:04] } 34... Qf5?? { [%eval #8] } { Checkmate is now unavoidable. Ra7 was best. } { [%clk 0:00:34] } 35. g4? { [%eval 7.64] } { Lost forced checkmate sequence. Qg8+ was best. } { [%clk 0:01:43] } 35... b1=Q { [%eval 7.53] [%clk 0:01:02] } 36. Qg8+ { [%eval 7.36] [%clk 0:01:48] } 36... Kg6 { [%eval 7.25] [%clk 0:01:31] } 37. Rxb1 { [%eval 7.12] [%clk 0:01:53] } 37... Qxb1 { [%eval 7.53] [%clk 0:00:32] } 38. f5+ { [%eval 7.11] [%clk 0:02:18] } 38... Kg5? { [%eval #1] } { Checkmate is now unavoidable. Qxf5 was best. } { [%clk 0:00:57] } 39. Qxg7# { [%clk 0:02:44] } 1-0