Event: Campeonato Nacional Senior 2025
Site: Comité Olímpico Nacional, Coronado, Costa Rica
White: Cersosimo Bolanos, Francisco
WhiteElo: 1974
Black: Gutierrez Soto, Gilberth
BlackElo: 1786
Result: 1/2-1/2
ECO: B23
Opening: Sicilian Defense: Closed
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:30:58] } 1... c5 { [%eval 0.25] [%clk 1:30:55] } 2. Nc3 { [%eval 0.26] [%clk 1:30:58] } 2... g6 { [%eval 0.3] [%clk 1:29:06] } 3. Bc4 { [%eval 0.07] [%clk 1:31:07] } 3... Bg7 { [%eval 0.19] [%clk 1:28:12] } 4. d3 { [%eval 0.0] [%clk 1:30:27] } 4... e6 { [%eval 0.41] [%clk 1:27:53] } 5. f4?! { [%eval -0.21] } { Inaccuracy. h4 was best. } { [%clk 1:30:21] } 5... d6 { [%eval -0.17] [%clk 1:28:02] } 6. a3 { [%eval -0.2] [%clk 1:29:38] } 6... Ne7 { [%eval -0.2] [%clk 1:27:49] } 7. Ba2 { [%eval -0.2] [%clk 1:29:26] } 7... Nbc6 { [%eval -0.17] [%clk 1:26:21] } 8. Nf3 { [%eval -0.21] [%clk 1:29:37] } 8... Nd4 { [%eval -0.02] [%clk 1:20:54] } 9. O-O { [%eval -0.27] [%clk 1:28:15] } 9... O-O { [%eval -0.34] [%clk 1:19:46] } 10. Ne2 { [%eval -0.41] [%clk 1:27:36] } 10... Nxf3+ { [%eval -0.43] [%clk 1:16:27] } 11. Rxf3 { [%eval -0.41] [%clk 1:25:44] } 11... b5 { [%eval -0.43] [%clk 1:13:52] } 12. c3 { [%eval -0.42] [%clk 1:24:03] } 12... a5 { [%eval -0.41] [%clk 1:11:58] } 13. g4 { [%eval -0.67] [%clk 1:23:54] } 13... f5 { [%eval -0.37] [%clk 1:08:02] } 14. h3?! { [%eval -0.98] } { Inaccuracy. gxf5 was best. } { [%clk 1:22:22] } 14... Kh8 { [%eval -0.7] [%clk 1:05:57] } 15. Ng3 { [%eval -0.85] [%clk 1:21:50] } 15... Rb8 { [%eval -0.75] [%clk 0:57:31] } 16. Rf2 { [%eval -1.06] [%clk 1:11:14] } 16... b4 { [%eval -1.11] [%clk 0:53:22] } 17. Qe1? { [%eval -2.7] } { Mistake. axb4 was best. } { [%clk 1:07:08] } 17... Qc7? { [%eval -1.17] } { Mistake. b3 was best. } { [%clk 0:38:55] } 18. Bd2? { [%eval -2.44] } { Mistake. axb4 was best. } { [%clk 1:00:14] } 18... b3 { [%eval -2.37] [%clk 0:33:37] } 19. Bb1 { [%eval -2.34] [%clk 1:00:18] } 19... a4 { [%eval -2.07] [%clk 0:33:24] } 20. Be3?! { [%eval -2.96] } { Inaccuracy. d4 was best. } { [%clk 0:58:43] } 20... Nc6?! { [%eval -1.82] } { Inaccuracy. d5 was best. } { [%clk 0:33:29] } 21. Ne2?! { [%eval -2.95] } { Inaccuracy. d4 was best. } { [%clk 0:53:42] } 21... c4?? { [%eval -0.94] } { Blunder. Ba6 was best. } { [%clk 0:33:34] } 22. d4?! { [%eval -1.84] } { Inaccuracy. dxc4 was best. } 1/2-1/2