Event: Campeonato Nacional Senior 2025
Site: Comité Olímpico Nacional, Coronado, Costa Rica
White: Pomares Herrera, Efrain
WhiteElo: 1604
Black: Arce Oviedo, Cesar
BlackElo: 1773
Result: 1-0
ECO: D00
Opening: Queen's Pawn Game: Mason Attack
Variant: Standard
TimeControl: 90+30

1. d4 { [%eval 0.17] [%clk 1:30:30] } 1... d5 { [%eval 0.2] [%clk 1:30:20] } 2. f4?! { [%eval -0.58] } { Inaccuracy. c4 was best. } { [%clk 1:31:29] } 2... c6 { [%eval -0.1] [%clk 1:29:46] } 3. e3 { [%eval -0.09] [%clk 1:31:55] } 3... Bf5 { [%eval 0.06] [%clk 1:29:49] } 4. Bd3 { [%eval -0.25] [%clk 1:32:24] } 4... Be4 { [%eval 0.12] [%clk 1:28:07] } 5. Nf3 { [%eval 0.1] [%clk 1:32:51] } 5... e6 { [%eval 0.22] [%clk 1:27:21] } 6. g3 { [%eval -0.24] [%clk 1:32:25] } 6... f5 { [%eval -0.08] [%clk 1:27:39] } 7. Rg1 { [%eval -0.37] [%clk 1:32:09] } 7... Nf6 { [%eval -0.46] [%clk 1:28:05] } 8. h3 { [%eval -0.92] [%clk 1:32:14] } 8... Nbd7 { [%eval -0.61] [%clk 1:24:08] } 9. c3?! { [%eval -1.19] } { Inaccuracy. Bd2 was best. } { [%clk 1:32:39] } 9... h6 { [%eval -0.76] [%clk 1:24:25] } 10. Qe2 { [%eval -1.01] [%clk 1:32:27] } 10... Qc7 { [%eval -0.92] [%clk 1:24:27] } 11. Nbd2 { [%eval -1.09] [%clk 1:32:39] } 11... O-O-O { [%eval -0.95] [%clk 1:24:15] } 12. b4 { [%eval -1.2] [%clk 1:32:26] } 12... Kb8 { [%eval -0.78] [%clk 1:24:37] } 13. a4 { [%eval -1.07] [%clk 1:32:28] } 13... Bxf3?! { [%eval 0.0] } { Inaccuracy. Rg8 was best. } { [%clk 1:24:51] } 14. Nxf3 { [%eval -0.1] [%clk 1:31:57] } 14... Ne4 { [%eval -0.24] [%clk 1:25:16] } 15. Bxe4 { [%eval -0.37] [%clk 1:31:35] } 15... dxe4 { [%eval -0.01] [%clk 1:25:37] } 16. Ne5 { [%eval -0.01] [%clk 1:31:22] } 16... Nxe5 { [%eval 0.0] [%clk 1:25:59] } 17. fxe5 { [%eval -0.03] [%clk 1:31:07] } 17... g5 { [%eval 0.0] [%clk 1:26:07] } 18. Bd2 { [%eval 0.01] [%clk 1:30:09] } 18... h5 { [%eval -0.1] [%clk 1:26:10] } 19. c4 { [%eval -0.44] [%clk 1:29:55] } 19... Be7 { [%eval -0.14] [%clk 1:25:37] } 1-0