Event: Round 1: Castrillon Arevalo, Hector Anibal - Ayala Delgado, Sergio Alejandro
Site: https://lichess.org/broadcast/final-nacional-colombia-intercolegiados-activo-2025--pre-juvenil-masculino/round-1/TP92t6eK/LB6rD87Z
Date: 2025-10-27
White: Castrillon Arevalo, Hector Anibal
Black: Ayala Delgado, Sergio Alejandro
BlackElo: 2113
Result: 0-1
ECO: D50
Opening: Queen's Gambit Declined: Been-Koomen Variation
Variant: Standard
TimeControl: 15+10

1. d4 { [%eval 0.17] [%clk 0:14:05] } 1... d5 { [%eval 0.18] [%clk 0:15:18] } 2. c4 { [%eval 0.18] [%clk 0:14:10] } 2... e6 { [%eval 0.17] [%clk 0:15:27] } 3. Nc3 { [%eval 0.22] [%clk 0:14:14] } 3... Nf6 { [%eval 0.24] [%clk 0:15:35] } 4. Bg5 { [%eval 0.0] [%clk 0:14:20] } 4... c5 { [%eval 0.26] [%clk 0:15:41] } 5. dxc5?! { [%eval -0.31] } { Inaccuracy. cxd5 was best. } { [%clk 0:14:25] } 5... Bxc5 { [%eval 0.02] [%clk 0:15:21] } 6. Nf3? { [%eval -1.21] } { Mistake. e3 was best. } { [%clk 0:13:30] } 6... d4 { [%eval -0.84] [%clk 0:15:18] } 7. Bxf6 { [%eval -0.92] [%clk 0:13:28] } 7... gxf6 { [%eval -0.57] [%clk 0:15:18] } 8. Ne4 { [%eval -0.9] [%clk 0:13:30] } 8... Bb4+ { [%eval -0.79] [%clk 0:15:26] } 9. Ned2 { [%eval -0.78] [%clk 0:13:38] } 9... e5 { [%eval -0.75] [%clk 0:11:54] } 10. Qa4+?! { [%eval -1.56] } { Inaccuracy. a3 was best. } { [%clk 0:13:41] } 10... Nc6 { [%eval -1.4] [%clk 0:12:02] } 11. a3 { [%eval -1.65] [%clk 0:13:35] } 11... Be7 { [%eval -1.51] [%clk 0:09:00] } 12. g3 { [%eval -1.63] [%clk 0:12:07] } 12... Bd7 { [%eval -1.31] [%clk 0:08:26] } 13. Qc2 { [%eval -1.26] [%clk 0:11:47] } 13... f5 { [%eval -1.23] [%clk 0:08:23] } 14. Bg2? { [%eval -3.03] } { Mistake. e3 was best. } { [%clk 0:11:24] } 14... e4 { [%eval -2.93] [%clk 0:08:31] } 15. Ng1 { [%eval -2.85] [%clk 0:10:59] } 15... d3? { [%eval -1.11] } { Mistake. Qa5 was best. } { [%clk 0:07:38] } 16. exd3 { [%eval -1.08] [%clk 0:09:01] } 16... Nd4 { [%eval -0.88] [%clk 0:07:45] } 17. Qd1?! { [%eval -1.83] } { Inaccuracy. Qc3 was best. } { [%clk 0:09:09] } 17... exd3 { [%eval -1.87] [%clk 0:07:53] } 18. Ngf3? { [%eval -3.67] } { Mistake. Kf1 was best. } { [%clk 0:08:17] } 18... Nc2+ { [%eval -3.72] [%clk 0:07:59] } 19. Kf1 { [%eval -3.63] [%clk 0:08:22] } 19... Nxa1 { [%eval -3.63] [%clk 0:08:08] } 20. Qxa1 { [%eval -3.64] [%clk 0:08:31] } 20... Bc6 { [%eval -2.96] [%clk 0:08:14] } 21. Qe1 { [%eval -3.66] [%clk 0:08:26] } 21... Qc7?! { [%eval -2.8] } { Inaccuracy. O-O was best. } { [%clk 0:08:11] } 22. Nh4? { [%eval -4.74] } { Mistake. Nd4 was best. } { [%clk 0:07:20] } 22... Bxg2+?! { [%eval -3.62] } { Inaccuracy. O-O-O was best. } { [%clk 0:08:16] } 23. Nxg2?! { [%eval -4.76] } { Inaccuracy. Kxg2 was best. } { [%clk 0:07:28] } 23... O-O-O { [%eval -4.75] [%clk 0:08:23] } 24. Nf4 { [%eval -5.56] [%clk 0:07:01] } 24... Bg5 { [%eval -5.69] [%clk 0:08:31] } 25. Qe3 { [%eval -5.54] [%clk 0:05:53] } 25... Bxf4 { [%eval -5.39] [%clk 0:08:38] } 26. Qxf4 { [%eval -5.36] [%clk 0:05:58] } 26... Qxf4 { [%eval -5.32] [%clk 0:08:46] } 27. gxf4 { [%eval -5.37] [%clk 0:06:07] } 27... Rd4 { [%eval -5.12] [%clk 0:08:52] } 28. Rg1 { [%eval -5.79] [%clk 0:06:13] } 28... Re8 { [%eval -5.71] [%clk 0:08:54] } 29. Rg7?! { [%eval -7.73] } { Inaccuracy. Kg2 was best. } { [%clk 0:06:08] } 29... Re2 { [%eval -7.49] [%clk 0:09:02] } 30. Nf3 { [%eval -7.76] [%clk 0:06:09] } 30... d2 { [%eval -7.81] [%clk 0:09:10] } 31. Nxd2 { [%eval -7.67] [%clk 0:06:14] } 31... Rdxd2 { [%eval -7.68] [%clk 0:09:18] } 32. Rg8+ { [%eval -7.56] [%clk 0:06:10] } 32... Kd7 { [%eval -7.57] [%clk 0:09:26] } 33. Rg7 { [%eval -9.06] [%clk 0:06:00] } 33... Rxf2+ { [%eval -8.28] [%clk 0:09:34] } 34. Ke1? { [%eval #-10] } { Checkmate is now unavoidable. Kg1 was best. } { [%clk 0:06:07] } 34... Rde2+ { [%eval #-9] [%clk 0:09:40] } 35. Kd1 { [%eval #-9] [%clk 0:06:16] } 35... Rxb2 { [%eval #-8] [%clk 0:09:49] } 36. Rxf7+ { [%eval #-5] [%clk 0:06:24] } 36... Ke6 { [%eval #-4] } 37. Rxh7 { [%eval #-1] [%clk 0:06:32] } 37... Rb1# { [%clk 0:10:07] } 0-1