Event: Campeonato Nacional Senior 2025
Site: Comité Olímpico Nacional, Coronado, Costa Rica
White: Calderon Villalobos, Alexis
WhiteElo: 1718
Black: Villegas Villalobos, Oscar
BlackElo: 1459
Result: 0-1
ECO: C30
Opening: King's Gambit Declined: Queen's Knight Defense
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:30:16] } 1... e5 { [%eval 0.21] [%clk 1:30:53] } 2. f4?! { [%eval -0.43] } { Inaccuracy. Nf3 was best. } { [%clk 1:30:22] } 2... Nc6 { [%eval 0.09] [%clk 1:30:05] } 3. Nf3 { [%eval 0.14] [%clk 1:30:05] } 3... d6 { [%eval 0.21] [%clk 1:29:55] } 4. Bc4 { [%eval 0.23] [%clk 1:29:21] } 4... h6 { [%eval 0.53] [%clk 1:29:06] } 5. O-O? { [%eval -0.92] } { Mistake. d4 was best. } { [%clk 1:27:53] } 5... Bg4? { [%eval 0.71] } { Mistake. exf4 was best. } { [%clk 1:28:18] } 6. c3?! { [%eval 0.0] } { Inaccuracy. fxe5 was best. } { [%clk 1:26:12] } 6... exf4 { [%eval 0.0] [%clk 1:09:04] } 7. d4 { [%eval -0.09] [%clk 1:26:12] } 7... Nf6? { [%eval 1.02] } { Mistake. g5 was best. } { [%clk 1:09:04] } 8. Bxf4 { [%eval 1.21] [%clk 1:26:12] } 8... Nxe4? { [%eval 2.69] } { Mistake. g5 was best. } 9. Qe1?? { [%eval 0.83] } { Blunder. Qb3 was best. } { [%clk 1:24:49] } 9... Qe7? { [%eval 2.27] } { Mistake. d5 was best. } { [%clk 1:09:31] } 10. Bd5?? { [%eval -0.74] } { Blunder. d5 was best. } { [%clk 1:14:01] } 10... g5?? { [%eval 1.4] } { Blunder. Nf6 was best. } { [%clk 1:08:44] } 11. Bc1?? { [%eval -1.08] } { Blunder. Ne5 was best. } { [%clk 1:08:00] } 11... f5?! { [%eval -0.44] } { Inaccuracy. Nf6 was best. } { [%clk 1:08:13] } 12. h3 { [%eval -0.48] [%clk 1:05:54] } 12... Bh5 { [%eval -0.64] [%clk 1:03:31] } 13. Nh2?! { [%eval -1.49] } { Inaccuracy. Nbd2 was best. } { [%clk 1:05:02] } 13... Bf7?! { [%eval -0.77] } { Inaccuracy. Nf6 was best. } { [%clk 1:02:30] } 14. Bxf7+ { [%eval -0.76] [%clk 1:04:21] } 14... Qxf7 { [%eval -0.82] [%clk 1:01:33] } 15. Nd2 { [%eval -0.86] [%clk 1:01:34] } 15... d5 { [%eval -0.93] [%clk 1:00:22] } 16. a3?? { [%eval -3.08] } { Blunder. g4 was best. } { [%clk 0:52:41] } 16... O-O-O?? { [%eval -0.74] } { Blunder. Qg6 was best. } { [%clk 0:59:51] } 17. Nxe4 { [%eval -0.63] [%clk 0:50:30] } 17... Re8 { [%eval -0.74] [%clk 0:55:50] } 18. Qf2 { [%eval -1.05] [%clk 0:49:20] } 18... Rxe4 { [%eval -0.96] [%clk 0:52:06] } 19. Qxf5+ { [%eval -0.82] [%clk 0:49:35] } 19... Qxf5 { [%eval -1.01] [%clk 0:52:07] } 20. Rxf5 { [%eval -1.0] [%clk 0:49:58] } 20... Ne7?! { [%eval -0.18] } { Inaccuracy. Na5 was best. } { [%clk 0:51:14] } 21. Re5?! { [%eval -0.88] } { Inaccuracy. Rf7 was best. } { [%clk 0:41:24] } 21... Bg7?! { [%eval 0.14] } { Inaccuracy. Rxe5 was best. } { [%clk 0:48:36] } 22. Rxe4 { [%eval 0.15] [%clk 0:39:46] } 22... dxe4 { [%eval 0.18] [%clk 0:47:35] } 23. g4 { [%eval -0.06] [%clk 0:38:33] } 23... Re8 { [%eval 0.05] [%clk 0:45:54] } 24. Be3 { [%eval -0.29] [%clk 0:38:38] } 24... Ng6 { [%eval 0.0] [%clk 0:44:41] } 25. Rf1 { [%eval -0.09] [%clk 0:36:04] } 25... Rf8 { [%eval 0.1] [%clk 0:44:10] } 26. Rxf8+ { [%eval 0.1] [%clk 0:32:50] } 26... Bxf8 { [%eval 0.13] [%clk 0:44:25] } 27. Nf1 { [%eval 0.18] [%clk 0:28:48] } 27... Bd6?! { [%eval 1.25] } { Inaccuracy. b5 was best. } { [%clk 0:44:39] } 28. Nd2 { [%eval 1.14] [%clk 0:28:03] } 28... Bf4?! { [%eval 1.89] } { Inaccuracy. Nf4 was best. } { [%clk 0:42:53] } 29. Bxf4? { [%eval 0.22] } { Mistake. Kf2 was best. } { [%clk 0:27:32] } 29... Nxf4 { [%eval 0.27] [%clk 0:38:08] } 30. Nxe4 { [%eval 0.24] [%clk 0:27:29] } 30... Nxh3+ { [%eval 0.19] [%clk 0:38:16] } 31. Kh2 { [%eval 0.08] [%clk 0:27:53] } 31... Nf4 { [%eval 0.16] [%clk 0:40:35] } 32. Nf6 { [%eval -0.03] [%clk 0:27:50] } 32... Kd8 { [%eval 0.05] [%clk 0:36:50] } 33. Ng8 { [%eval -0.08] [%clk 0:27:58] } 33... h5 { [%eval 0.0] [%clk 0:36:37] } 34. gxh5 { [%eval -0.05] [%clk 0:27:34] } 34... Nxh5 { [%eval -0.06] [%clk 0:36:47] } 35. Nh6 { [%eval -0.09] [%clk 0:25:32] } 35... Ke7 { [%eval -0.17] [%clk 0:34:13] } 36. d5 { [%eval -0.58] [%clk 0:24:12] } 36... Kf6 { [%eval -0.53] [%clk 0:31:56] } 37. b4?? { [%eval -3.61] } { Blunder. c4 was best. } { [%clk 0:23:29] } 37... b5 { [%eval -3.9] [%clk 0:31:22] } 38. Ng4+ { [%eval -3.98] [%clk 0:21:43] } 38... Kf5 { [%eval -4.21] [%clk 0:31:11] } 39. Nh6+ { [%eval -4.32] [%clk 0:19:24] } 39... Ke4 { [%eval -3.92] [%clk 0:31:27] } 40. d6 { [%eval -4.51] [%clk 0:19:27] } 40... cxd6 { [%eval -4.41] [%clk 0:30:41] } 41. Nf7 { [%eval -4.46] [%clk 0:19:32] } 41... g4 { [%eval -4.0] [%clk 0:30:36] } 42. Nxd6+ { [%eval -4.41] [%clk 0:19:27] } 42... Kf3 { [%eval -3.88] [%clk 0:30:56] } 43. Nxb5? { [%eval -6.68] } { Mistake. Kg1 was best. } { [%clk 0:15:35] } 43... Kf2 { [%eval -6.71] [%clk 0:30:49] } 44. Nd6 { [%eval -7.75] [%clk 0:14:37] } 44... g3+ { [%eval -7.89] [%clk 0:30:49] } 45. Kh3 { [%eval -7.6] [%clk 0:14:46] } 45... Nf6 { [%eval -7.37] [%clk 0:30:37] } 0-1