Event: Round 1: Ospina Castro, Santiago - Rivera Valentin, Christian Z.
Date: 2025-04-14
White: Ospina Castro, Santiago
WhiteTitle: FM
WhiteElo: 2148
Black: Rivera Valentin, Christian Z.
BlackElo: 1829
Result: 1-0
ECO: B00
Opening: Pirc Defense
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:30:53] } 1... d6 { [%eval 0.43] [%clk 1:30:54] } 2. d4 { [%eval 0.43] [%clk 1:31:20] } 2... Nf6 { [%eval 0.43] [%clk 1:31:21] } 3. Nc3 { [%eval 0.38] [%clk 1:31:47] } 3... e5 { [%eval 0.44] [%clk 1:31:46] } 4. Nge2 { [%eval 0.34] [%clk 1:31:32] } 4... Be7 { [%eval 0.42] [%clk 1:31:56] } 5. h3 { [%eval 0.36] [%clk 1:31:36] } 5... O-O { [%eval 0.37] [%clk 1:32:14] } 6. g4 { [%eval 0.46] [%clk 1:31:45] } 6... exd4 { [%eval 0.47] [%clk 1:28:35] } 7. Qxd4 { [%eval 0.47] [%clk 1:28:10] } 7... Nc6 { [%eval 0.54] [%clk 1:27:32] } 8. Qd1 { [%eval 0.57] [%clk 1:28:35] } 8... Nd7 { [%eval 0.9] [%clk 1:13:12] } 9. Bg2 { [%eval 0.87] [%clk 1:27:03] } 9... Nde5?! { [%eval 1.45] } { Inaccuracy. Bh4 was best. } { [%clk 1:10:35] } 10. O-O { [%eval 1.46] [%clk 1:23:51] } 10... Ng6 { [%eval 1.38] [%clk 1:03:09] } 11. f4 { [%eval 1.43] [%clk 1:15:18] } 11... h6 { [%eval 1.8] [%clk 0:56:43] } 12. Be3 { [%eval 1.39] [%clk 1:09:25] } 12... Re8 { [%eval 1.7] [%clk 0:51:12] } 13. Qd2 { [%eval 1.69] [%clk 1:08:31] } 13... Bf6 { [%eval 2.19] [%clk 0:50:51] } 14. Rae1 { [%eval 1.79] [%clk 1:04:24] } 14... Nce7?! { [%eval 2.49] } { Inaccuracy. a5 was best. } { [%clk 0:43:18] } 15. Ng3 { [%eval 2.05] [%clk 0:58:34] } 15... c6? { [%eval 3.52] } { Mistake. Bh4 was best. } { [%clk 0:42:52] } 16. Nh5 { [%eval 3.47] [%clk 0:55:07] } 16... d5 { [%eval 4.22] [%clk 0:42:20] } 17. Nxf6+ { [%eval 4.24] [%clk 0:54:39] } 17... gxf6 { [%eval 4.15] [%clk 0:42:41] } 18. exd5?! { [%eval 3.17] } { Inaccuracy. Bd4 was best. } { [%clk 0:53:45] } 18... f5?! { [%eval 4.11] } { Inaccuracy. Nxd5 was best. } { [%clk 0:40:10] } 19. d6 { [%eval 4.03] [%clk 0:46:56] } 19... Nd5 { [%eval 4.03] [%clk 0:39:52] } 20. Nxd5 { [%eval 3.98] [%clk 0:47:11] } 20... cxd5 { [%eval 3.9] [%clk 0:39:56] } 21. gxf5 { [%eval 3.75] [%clk 0:43:28] } 21... Bxf5 { [%eval 3.93] [%clk 0:39:59] } 22. Qxd5 { [%eval 3.89] [%clk 0:43:41] } 22... Qf6? { [%eval 7.16] } { Mistake. Qd7 was best. } { [%clk 0:32:36] } 23. Bd4 { [%eval 6.87] [%clk 0:42:35] } 23... Qh4 { [%eval 7.02] [%clk 0:15:21] } 24. Rxe8+ { [%eval 7.22] [%clk 0:42:41] } 24... Rxe8 { [%eval 7.15] [%clk 0:15:40] } 25. Qxf5 { [%eval 7.12] [%clk 0:43:05] } 25... Re1 { [%eval 8.51] [%clk 0:15:47] } 26. Qf6 { [%eval 8.26] [%clk 0:41:13] } 1-0