Event: Ronda 1: Cordero Medrano, Dennis Matheus - Marin Vargas, Aaron
Site: https://lichess.org/broadcast/juegos-estudiantiles-centroamericanos-codicader-u15--clasico-absoluto/ronda-1/diAjRm3N/yXvDUW4A
Date: 2025-10-05
White: Cordero Medrano, Dennis Matheus
WhiteElo: 1759
Black: Marin Vargas, Aaron
BlackElo: 1509
Result: 0-1
ECO: B00
Opening: Owen Defense
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:00:53] } 1... b6 { [%eval 0.68] [%clk 1:00:48] } 2. d4 { [%eval 0.7] [%clk 1:01:07] } 2... Bb7 { [%eval 0.63] [%clk 1:01:10] } 3. Nc3 { [%eval 0.6] [%clk 1:01:08] } 3... e6 { [%eval 0.64] [%clk 1:01:32] } 4. Be3 { [%eval 0.23] [%clk 1:01:10] } 4... Bb4 { [%eval 0.17] [%clk 1:01:36] } 5. Bd3 { [%eval 0.0] [%clk 1:00:20] } 5... d6?! { [%eval 0.86] } { Inaccuracy. Nf6 was best. } { [%clk 0:59:51] } 6. Ne2 { [%eval 0.86] [%clk 1:00:19] } 6... Ne7 { [%eval 1.14] [%clk 0:59:26] } 7. a3 { [%eval 1.08] [%clk 1:00:16] } 7... Bxc3+ { [%eval 1.09] [%clk 0:59:46] } 8. Nxc3 { [%eval 1.44] [%clk 1:00:35] } 8... Nd7 { [%eval 1.5] [%clk 0:59:56] } 9. Qd2 { [%eval 1.46] [%clk 0:59:23] } 9... d5 { [%eval 1.47] [%clk 0:58:39] } 10. e5?! { [%eval 0.84] } { Inaccuracy. exd5 was best. } { [%clk 0:58:14] } 10... c5 { [%eval 0.8] [%clk 0:58:43] } 11. Nb5 { [%eval 0.88] [%clk 0:57:16] } 11... O-O { [%eval 0.94] [%clk 0:57:42] } 12. c3 { [%eval 1.11] [%clk 0:55:47] } 12... c4?! { [%eval 1.86] } { Inaccuracy. Nc8 was best. } { [%clk 0:57:08] } 13. Bc2 { [%eval 1.67] [%clk 0:55:11] } 13... f6 { [%eval 1.78] [%clk 0:55:39] } 14. f4?! { [%eval 1.09] } { Inaccuracy. Nd6 was best. } { [%clk 0:53:22] } 14... Bc6 { [%eval 1.54] [%clk 0:52:45] } 15. Nd6 { [%eval 1.48] [%clk 0:53:16] } 15... Nc8 { [%eval 1.43] [%clk 0:51:52] } 16. Nxc8 { [%eval 1.69] [%clk 0:53:30] } 16... Rxc8 { [%eval 1.56] [%clk 0:52:10] } 17. O-O-O { [%eval 1.31] [%clk 0:53:29] } 17... a5 { [%eval 1.3] [%clk 0:50:47] } 18. h4?! { [%eval 0.68] } { Inaccuracy. Qe2 was best. } { [%clk 0:53:10] } 18... f5? { [%eval 1.88] } { Mistake. b5 was best. } { [%clk 0:48:11] } 19. Rdg1? { [%eval 0.33] } { Mistake. g4 was best. } { [%clk 0:52:37] } 19... Rf7? { [%eval 1.9] } { Mistake. h5 was best. } { [%clk 0:44:08] } 20. g4 { [%eval 1.93] [%clk 0:51:54] } 20... g6?? { [%eval 6.39] } { Blunder. Nf8 was best. } { [%clk 0:44:13] } 21. gxf5 { [%eval 6.03] [%clk 0:51:48] } 21... exf5 { [%eval 6.81] [%clk 0:43:47] } 22. h5 { [%eval 6.7] [%clk 0:51:39] } 22... Nf8 { [%eval 6.8] [%clk 0:43:25] } 23. Qh2 { [%eval 6.72] [%clk 0:51:07] } 23... Rcc7 { [%eval 7.36] [%clk 0:42:31] } 24. hxg6 { [%eval 7.36] [%clk 0:50:55] } 24... Rg7 { [%eval 7.73] [%clk 0:38:52] } 25. gxh7+ { [%eval 7.56] [%clk 0:51:13] } 25... Kh8 { [%eval 7.44] [%clk 0:38:52] } 26. Bxf5 { [%eval 7.66] [%clk 0:49:27] } 26... Rcf7 { [%eval 8.1] [%clk 0:38:13] } 27. Rxg7 { [%eval 8.09] [%clk 0:49:23] } 27... Rxg7 { [%eval 7.65] [%clk 0:38:26] } 28. Rg1 { [%eval 6.57] [%clk 0:48:13] } 28... Qe7 { [%eval 6.38] [%clk 0:38:03] } 29. Rg5 { [%eval 5.68] [%clk 0:44:38] } 29... Bd7 { [%eval 6.03] [%clk 0:36:27] } 30. Bxd7 { [%eval 5.39] [%clk 0:43:45] } 30... Qxd7 { [%eval 6.71] [%clk 0:36:27] } 31. Qh6 { [%eval 7.12] [%clk 0:42:56] } 31... Ne6 { [%eval 6.22] [%clk 0:35:00] } 32. Rxg7? { [%eval 3.69] } { Mistake. Rh5 was best. } { [%clk 0:41:46] } 32... Nxg7 { [%eval 3.66] [%clk 0:35:10] } 33. Qh1 { [%eval 3.52] [%clk 0:34:10] } 33... b5 { [%eval 3.29] [%clk 0:35:14] } 34. Bf2 { [%eval 3.28] [%clk 0:33:36] } 34... b4?! { [%eval 4.21] } { Inaccuracy. Qg4 was best. } { [%clk 0:35:17] } 35. axb4 { [%eval 3.98] [%clk 0:33:02] } 35... axb4 { [%eval 3.82] [%clk 0:35:26] } 36. Bh4?? { [%eval 0.16] } { Blunder. cxb4 was best. } { [%clk 0:31:28] } 36... Qf5?? { [%eval 3.5] } { Blunder. Qa7 was best. } { [%clk 0:32:13] } 37. Qf3?? { [%eval -0.1] } { Blunder. cxb4 was best. } { [%clk 0:29:52] } 37... b3 { [%eval -0.08] [%clk 0:31:34] } 38. Qf2 { [%eval -0.21] [%clk 0:30:08] } 38... Nh5 { [%eval -0.09] [%clk 0:28:44] } 39. Bg5 { [%eval 0.0] [%clk 0:26:58] } 39... Kxh7 { [%eval 0.0] [%clk 0:28:00] } 40. e6 { [%eval -0.1] [%clk 0:24:06] } 40... Qxe6 { [%eval -0.36] [%clk 0:27:16] } 41. Kd1?? { [%eval -5.36] } { Blunder. Kd2 was best. } { [%clk 0:21:59] } 41... Qf5 { [%eval -5.62] [%clk 0:26:15] } 42. Qe2?? { [%eval #-14] } { Checkmate is now unavoidable. Qd2 was best. } { [%clk 0:21:08] } 42... Qb1+ { [%eval #-13] [%clk 0:25:51] } 43. Kd2 { [%eval #-13] [%clk 0:20:45] } 43... Qxb2+ { [%eval #-14] [%clk 0:26:09] } 0-1