Event: Ronda 4: Sierra Lopez, Gabriel Jose - Calderon Vasquez, Miguel Angel
Site: https://lichess.org/broadcast/juegos-estudiantiles-centroamericanos-codicader-u15--clasico-absoluto/ronda-4/DpojATVg/uvOZ9hjk
Date: 2025-10-05
White: Sierra Lopez, Gabriel Jose
Black: Calderon Vasquez, Miguel Angel
Result: 1/2-1/2
ECO: C70
Opening: Ruy Lopez: Morphy Defense, Classical Defense Deferred
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:00:58] } 1... e5 { [%eval 0.22] [%clk 0:59:55] } 2. Nf3 { [%eval 0.13] [%clk 1:01:23] } 2... Nc6 { [%eval 0.21] [%clk 0:58:54] } 3. Bb5 { [%eval 0.15] [%clk 1:01:48] } 3... a6 { [%eval 0.21] [%clk 0:58:14] } 4. Ba4 { [%eval 0.11] [%clk 1:02:11] } 4... Bc5 { [%eval 0.41] [%clk 0:57:01] } 5. c3 { [%eval 0.35] [%clk 1:02:22] } 5... d6 { [%eval 0.76] [%clk 0:52:15] } 6. d4 { [%eval 0.73] [%clk 1:01:56] } 6... exd4 { [%eval 0.88] [%clk 0:52:36] } 7. cxd4 { [%eval 0.78] [%clk 1:02:19] } 7... Bb4+ { [%eval 0.74] [%clk 0:50:35] } 8. Bd2 { [%eval 0.91] [%clk 1:02:06] } 8... Bxd2+ { [%eval 0.83] [%clk 0:49:18] } 9. Nbxd2 { [%eval 0.9] [%clk 1:02:24] } 9... Bd7 { [%eval 0.91] [%clk 0:49:08] } 10. O-O { [%eval 0.96] [%clk 1:02:03] } 10... Nge7 { [%eval 1.11] [%clk 0:45:27] } 11. Re1 { [%eval 0.91] [%clk 1:01:51] } 11... O-O { [%eval 0.9] [%clk 0:44:31] } 12. Nf1?! { [%eval -0.09] } { Inaccuracy. Rc1 was best. } { [%clk 1:00:09] } 12... Re8? { [%eval 1.02] } { Mistake. Bg4 was best. } { [%clk 0:42:07] } 13. Ng3 { [%eval 1.03] [%clk 1:00:15] } 13... d5 { [%eval 1.37] [%clk 0:39:20] } 14. Bc2? { [%eval 0.16] } { Mistake. e5 was best. } { [%clk 0:56:41] } 14... Be6?! { [%eval 1.14] } { Inaccuracy. Bg4 was best. } { [%clk 0:36:01] } 15. h3?! { [%eval 0.15] } { Inaccuracy. e5 was best. } { [%clk 0:53:13] } 15... Ng6? { [%eval 1.28] } { Mistake. dxe4 was best. } { [%clk 0:33:49] } 16. Qd2?! { [%eval 0.39] } { Inaccuracy. e5 was best. } { [%clk 0:50:36] } 16... Qd7? { [%eval 1.72] } { Mistake. dxe4 was best. } { [%clk 0:29:34] } 17. a3? { [%eval 0.29] } { Mistake. e5 was best. } { [%clk 0:48:25] } 17... Rad8? { [%eval 1.92] } { Mistake. dxe4 was best. } { [%clk 0:25:53] } 18. Rad1? { [%eval 0.22] } { Mistake. e5 was best. } { [%clk 0:47:20] } 18... Nce7? { [%eval 1.66] } { Mistake. dxe4 was best. } { [%clk 0:23:15] } 19. b4? { [%eval 0.09] } { Mistake. e5 was best. } { [%clk 0:45:18] } 19... c6?? { [%eval 1.87] } { Blunder. dxe4 was best. } { [%clk 0:22:08] } 20. Qc3? { [%eval 0.2] } { Mistake. e5 was best. } { [%clk 0:43:53] } 20... f6? { [%eval 1.32] } { Mistake. dxe4 was best. } { [%clk 0:21:09] } 21. Qc5?? { [%eval -0.48] } { Blunder. e5 was best. } { [%clk 0:41:57] } 21... Qc7?? { [%eval 1.35] } { Blunder. Nf4 was best. } { [%clk 0:19:16] } 22. a4? { [%eval -0.17] } { Mistake. e5 was best. } { [%clk 0:35:39] } 22... b6 { [%eval -0.14] [%clk 0:17:56] } 23. Qc3 { [%eval -0.23] [%clk 0:35:51] } 23... dxe4 { [%eval -0.15] [%clk 0:16:23] } 24. Bxe4 { [%eval -0.19] [%clk 0:35:36] } 24... Bd5 { [%eval 0.03] [%clk 0:15:53] } 25. Bxd5+?! { [%eval -0.57] } { Inaccuracy. Rc1 was best. } { [%clk 0:34:11] } 25... Nxd5 { [%eval -0.57] [%clk 0:16:10] } 26. Qc4 { [%eval -0.8] [%clk 0:31:24] } 26... b5 { [%eval -0.81] [%clk 0:16:00] } 27. axb5 { [%eval -0.66] [%clk 0:31:41] } 27... axb5 { [%eval -0.71] [%clk 0:16:01] } 28. Qc5 { [%eval -0.77] [%clk 0:31:16] } 28... Kf7?! { [%eval 0.0] } { Inaccuracy. Rxe1+ was best. } { [%clk 0:15:13] } 29. Nf5?! { [%eval -0.77] } { Inaccuracy. Rxe8 was best. } { [%clk 0:30:13] } 29... Nge7?! { [%eval 0.0] } { Inaccuracy. Rxe1+ was best. } { [%clk 0:12:32] } 30. Ne3 { [%eval -0.46] [%clk 0:27:05] } 30... Nxe3 { [%eval 0.05] [%clk 0:12:40] } 31. fxe3 { [%eval 0.09] [%clk 0:27:15] } 31... Rd5 { [%eval 0.32] [%clk 0:12:08] } 32. Qc3 { [%eval 0.35] [%clk 0:25:20] } 32... Ra8? { [%eval 1.96] } { Mistake. Kg8 was best. } { [%clk 0:10:49] } 33. e4 { [%eval 1.83] [%clk 0:24:51] } 33... Rdd8 { [%eval 1.92] [%clk 0:11:01] } 34. d5? { [%eval 0.48] } { Mistake. Qb3+ was best. } { [%clk 0:23:30] } 34... Qb6+ { [%eval 0.54] [%clk 0:10:17] } 35. Kh2 { [%eval 0.01] [%clk 0:22:02] } 35... cxd5 { [%eval 0.02] [%clk 0:10:28] } 36. exd5 { [%eval 0.0] [%clk 0:21:53] } 36... Rxd5?? { [%eval 4.97] } { Blunder. Nxd5 was best. } { [%clk 0:09:42] } 37. Qb3?? { [%eval 0.0] } { Blunder. Rxe7+ was best. } { [%clk 0:21:20] } 37... Qd6+ { [%eval 0.0] [%clk 0:09:09] } 38. g3 { [%eval 0.0] [%clk 0:21:03] } 38... Kf8?? { [%eval 4.3] } { Blunder. Rd8 was best. } { [%clk 0:09:20] } 39. Rxe7 { [%eval 4.23] [%clk 0:16:29] } 39... Qxe7 { [%eval 4.77] [%clk 0:07:22] } 40. Qxd5 { [%eval 4.7] [%clk 0:15:50] } 40... Qe2+ { [%eval 4.64] [%clk 0:07:50] } 41. Kg1 { [%eval 4.25] [%clk 0:14:07] } 41... Ra2?? { [%eval #12] } { Checkmate is now unavoidable. Qe3+ was best. } { [%clk 0:08:19] } 42. Qd8+?? { [%eval 4.21] } { Lost forced checkmate sequence. Qc5+ was best. } { [%clk 0:13:38] } 42... Kf7?? { [%eval #10] } { Checkmate is now unavoidable. Qe8 was best. } { [%clk 0:08:48] } 43. Qd7+?? { [%eval 6.49] } { Lost forced checkmate sequence. Qc7+ was best. } { [%clk 0:12:08] } 43... Kf8 { [%eval 6.54] [%clk 0:09:17] } 44. Qc8+ { [%eval 6.48] [%clk 0:11:16] } 44... Kf7 { [%eval 8.15] [%clk 0:09:28] } 45. Rd7+ { [%eval 7.91] [%clk 0:10:16] } 45... Kg6 { [%eval 7.96] [%clk 0:09:56] } 46. Nh4+ { [%eval 7.64] [%clk 0:10:01] } 46... Kh6? { [%eval #13] } { Checkmate is now unavoidable. Kh5 was best. } { [%clk 0:09:38] } 47. Qc1+?? { [%eval 6.36] } { Lost forced checkmate sequence. Nf5+ was best. } { [%clk 0:09:01] } 47... g5 { [%eval 6.23] [%clk 0:09:11] } 48. Nf5+ { [%eval 6.02] [%clk 0:08:00] } 48... Kg6 { [%eval 6.03] [%clk 0:09:37] } 49. Ne7+ { [%eval 5.28] [%clk 0:07:25] } 49... Kh6 { [%eval 6.15] [%clk 0:09:55] } 50. Ng8+ { [%eval 5.28] [%clk 0:07:12] } 50... Kg6 { [%eval 4.75] [%clk 0:09:31] } 51. Qb1+?? { [%eval 0.0] } { Blunder. Ne7+ was best. } { [%clk 0:07:01] } 51... Rc2 { [%eval 0.0] [%clk 0:09:59] } 52. Ne7+ { [%eval 0.0] [%clk 0:06:26] } 52... Kh6 { [%eval 0.0] [%clk 0:10:03] } 53. Nf5+ { [%eval 0.0] [%clk 0:05:59] } 53... Kg6 { [%eval 0.0] [%clk 0:10:23] } 54. Ne7+ { [%eval 0.0] [%clk 0:05:51] } 54... Kh6 { [%eval 0.0] [%clk 0:10:46] } 55. Nf5+ { [%eval 0.0] [%clk 0:05:33] } 55... Kg6 { [%eval 0.0] [%clk 0:10:32] } 1/2-1/2