Event: Campeonato Nacional Senior 2025
Site: Comité Olímpico Nacional, Coronado, Costa Rica
White: Cersosimo Bolanos, Francisco
WhiteElo: 1974
Black: Araya Umana, Carlos
BlackTitle: CM
BlackElo: 1893
Result: 1/2-1/2
ECO: C26
Opening: Vienna Game: Stanley Variation
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:30:50] } 1... e5 { [%eval 0.21] [%clk 1:25:52] } 2. Bc4 { [%eval 0.03] [%clk 1:31:01] } 2... Nf6 { [%eval 0.11] [%clk 1:26:13] } 3. Nc3 { [%eval 0.0] [%clk 1:31:21] } 3... Be7 { [%eval 0.26] [%clk 1:25:59] } 4. d3 { [%eval 0.04] [%clk 1:31:26] } 4... d6 { [%eval 0.19] [%clk 1:22:25] } 5. f4 { [%eval 0.19] [%clk 1:31:30] } 5... exf4 { [%eval 0.27] [%clk 1:14:45] } 6. Bxf4 { [%eval 0.2] [%clk 1:31:15] } 6... Nc6 { [%eval 0.15] [%clk 1:14:34] } 7. Nf3 { [%eval 0.28] [%clk 1:31:24] } 7... Bg4 { [%eval 0.43] [%clk 1:12:29] } 8. h3 { [%eval 0.53] [%clk 1:31:02] } 8... Bh5 { [%eval 0.97] [%clk 0:59:23] } 9. g4 { [%eval 0.93] [%clk 1:23:32] } 9... Bg6 { [%eval 0.91] [%clk 0:59:27] } 10. Qe2 { [%eval 0.95] [%clk 1:21:08] } 10... a6?! { [%eval 1.78] } { Inaccuracy. Na5 was best. } { [%clk 0:56:47] } 11. a3 { [%eval 1.48] [%clk 1:19:14] } 11... Qd7?! { [%eval 2.1] } { Inaccuracy. Nd7 was best. } { [%clk 0:56:35] } 12. O-O-O { [%eval 2.04] [%clk 1:17:07] } 12... O-O-O { [%eval 1.99] [%clk 0:39:57] } 13. d4?! { [%eval 1.23] } { Inaccuracy. Kb1 was best. } { [%clk 1:15:05] } 13... Nxe4 { [%eval 1.26] [%clk 0:39:11] } 14. Nxe4 { [%eval 1.25] [%clk 1:11:16] } 14... Bxe4 { [%eval 1.25] [%clk 0:39:34] } 15. Qxe4 { [%eval 1.19] [%clk 1:08:32] } 15... d5 { [%eval 1.21] [%clk 0:40:01] } 16. Bxd5?! { [%eval 0.29] } { Inaccuracy. Qe3 was best. } { [%clk 1:03:30] } 16... Qxd5 { [%eval 0.35] [%clk 0:40:22] } 17. Qxd5 { [%eval 0.42] [%clk 1:03:34] } 17... Rxd5 { [%eval 0.44] [%clk 0:40:47] } 18. Rhe1 { [%eval 0.0] [%clk 1:04:02] } 18... b5 { [%eval -0.02] [%clk 0:37:06] } 19. c3 { [%eval 0.08] [%clk 0:59:20] } 19... h6 { [%eval 0.09] [%clk 0:36:43] } 20. Kc2 { [%eval 0.14] [%clk 0:55:09] } 1/2-1/2