Event: Round 1: Sierra, Edinson - Acosta Neira, Jaime
Date: 2025-06-08
White: Sierra, Edinson
WhiteElo: 1786
Black: Acosta Neira, Jaime
BlackElo: 1503
Result: 1-0
ECO: A45
Opening: Indian Defense
Variant: Standard
TimeControl: 15+10

1. d4 { [%eval 0.17] [%clk 0:15:17] } 1... Nf6 { [%eval 0.19] [%clk 0:15:17] } 2. e3 { [%eval 0.0] [%clk 0:15:13] } 2... b6 { [%eval 0.15] [%clk 0:15:18] } 3. f4 { [%eval -0.21] [%clk 0:15:13] } 3... Bb7 { [%eval -0.19] [%clk 0:15:26] } 4. Nf3 { [%eval -0.23] [%clk 0:15:21] } 4... e6 { [%eval -0.15] [%clk 0:15:20] } 5. g3 { [%eval -0.45] [%clk 0:15:27] } 5... Be7 { [%eval -0.43] [%clk 0:15:21] } 6. Bg2 { [%eval -0.51] [%clk 0:15:35] } 6... O-O { [%eval -0.43] [%clk 0:15:28] } 7. O-O { [%eval -0.51] [%clk 0:15:42] } 7... d5 { [%eval -0.49] [%clk 0:15:22] } 8. a3 { [%eval -0.71] [%clk 0:15:44] } 8... Nbd7 { [%eval -0.71] [%clk 0:15:30] } 9. b4?! { [%eval -1.47] } { Inaccuracy. Nc3 was best. } { [%clk 0:15:52] } 9... c5 { [%eval -1.41] [%clk 0:15:08] } 10. Bb2?! { [%eval -2.05] } { Inaccuracy. Bd2 was best. } { [%clk 0:15:56] } 10... cxb4 { [%eval -2.07] [%clk 0:15:12] } 11. axb4 { [%eval -2.12] [%clk 0:16:04] } 11... Bxb4 { [%eval -2.07] [%clk 0:15:15] } 12. Nbd2 { [%eval -2.0] [%clk 0:15:52] } 12... Bd6 { [%eval -1.59] [%clk 0:14:51] } 13. Ne5 { [%eval -1.69] [%clk 0:15:57] } 13... a5 { [%eval -1.66] [%clk 0:14:27] } 14. c4 { [%eval -1.88] [%clk 0:16:04] } 14... Rc8 { [%eval -1.8] [%clk 0:14:10] } 15. Qb3?! { [%eval -2.7] } { Inaccuracy. g4 was best. } { [%clk 0:16:01] } 15... dxc4?! { [%eval -2.01] } { Inaccuracy. Bb4 was best. } { [%clk 0:14:09] } 16. Ndxc4 { [%eval -2.23] [%clk 0:16:08] } 16... Bxg2 { [%eval -2.14] [%clk 0:14:13] } 17. Kxg2?! { [%eval -3.07] } { Inaccuracy. Nxd6 was best. } { [%clk 0:16:15] } 17... Bb4 { [%eval -3.18] [%clk 0:14:11] } 18. Rfc1 { [%eval -3.14] [%clk 0:16:07] } 18... Re8?! { [%eval -2.04] } { Inaccuracy. Nxe5 was best. } { [%clk 0:13:14] } 19. Ba3?! { [%eval -3.28] } { Inaccuracy. Kg1 was best. } { [%clk 0:16:10] } 19... Bxa3?! { [%eval -2.43] } { Inaccuracy. b5 was best. } { [%clk 0:13:07] } 20. Rxa3? { [%eval -4.42] } { Mistake. Nxa3 was best. } { [%clk 0:16:17] } 20... Nd5?? { [%eval 1.94] } { Blunder. Nxe5 was best. } { [%clk 0:13:03] } 21. Nxd7?? { [%eval -2.18] } { Blunder. Nxf7 was best. } { [%clk 0:16:19] } 21... Qxd7 { [%eval -1.99] [%clk 0:13:10] } 22. e4 { [%eval -2.16] [%clk 0:15:53] } 22... Nb4?? { [%eval 3.36] } { Blunder. a4 was best. } { [%clk 0:13:19] } 23. Nxb6 { [%eval 3.29] [%clk 0:15:55] } 23... Qb7 { [%eval 3.91] [%clk 0:13:02] } 24. Nxc8 { [%eval 4.0] [%clk 0:15:53] } 24... Rxc8 { [%eval 4.78] [%clk 0:12:57] } 25. Rxc8+ { [%eval 4.94] [%clk 0:15:58] } 25... Qxc8 { [%eval 5.12] [%clk 0:13:06] } 26. Rxa5 { [%eval 5.16] [%clk 0:16:03] } 26... Qb7 { [%eval 5.11] [%clk 0:12:48] } 27. Qxb4 { [%eval 4.95] [%clk 0:16:05] } 27... Qxe4+ { [%eval 6.06] [%clk 0:12:54] } 28. Kh3 { [%eval 5.45] [%clk 0:15:59] } 28... Qf5+?? { [%eval #6] } { Checkmate is now unavoidable. h6 was best. } { [%clk 0:13:01] } 29. g4?? { [%eval 4.23] } { Lost forced checkmate sequence. Rxf5 was best. } { [%clk 0:16:07] } 29... Qd3+ { [%eval 4.19] [%clk 0:13:08] } 30. Kh4 { [%eval 4.02] [%clk 0:16:08] } 1-0