Event: Round 3: Otero, Juan David - Ceron Pena, Didier Alexandro
Site: https://lichess.org/broadcast/final-nacional-colombia-intercolegiados-activo-2025--juvenil-masculino/round-3/XgLHJPXi/6YcFVRiQ
Date: 2025-10-27
White: Otero, Juan David
WhiteElo: 1422
Black: Ceron Pena, Didier Alexandro
Result: 0-1
ECO: D02
Opening: Queen's Pawn Game: London System, with e6
Variant: Standard
TimeControl: 15+10

1. d4 { [%eval 0.17] [%clk 0:15:19] } 1... d5 { [%eval 0.18] [%clk 0:15:01] } 2. Nf3 { [%eval 0.08] [%clk 0:15:27] } 2... e6 { [%eval 0.19] [%clk 0:15:08] } 3. Bf4 { [%eval 0.07] [%clk 0:15:35] } 3... Nf6 { [%eval 0.1] [%clk 0:14:50] } 4. e3 { [%eval 0.0] [%clk 0:15:43] } 4... Nc6 { [%eval 0.45] [%clk 0:14:53] } 5. c3 { [%eval 0.33] [%clk 0:15:49] } 5... Bd7 { [%eval 0.42] [%clk 0:13:57] } 6. Qb3 { [%eval 0.02] [%clk 0:15:49] } 6... Na5 { [%eval 0.37] [%clk 0:13:44] } 7. Qc2 { [%eval 0.37] [%clk 0:15:52] } 7... Ne4 { [%eval 0.55] [%clk 0:13:42] } 8. Nbd2 { [%eval 0.75] [%clk 0:15:47] } 8... Bc6? { [%eval 2.1] } { Mistake. Nxd2 was best. } { [%clk 0:13:10] } 9. b4?! { [%eval 1.32] } { Inaccuracy. Nxe4 was best. } { [%clk 0:15:53] } 9... Nxd2 { [%eval 1.32] [%clk 0:11:30] } 10. Nxd2 { [%eval 1.3] [%clk 0:15:59] } 10... Nc4 { [%eval 1.46] [%clk 0:11:06] } 11. Be2? { [%eval 0.08] } { Mistake. Nxc4 was best. } { [%clk 0:15:39] } 11... Nxd2 { [%eval 0.19] [%clk 0:10:44] } 12. Qxd2 { [%eval 0.11] [%clk 0:15:46] } 12... Be7 { [%eval 0.27] [%clk 0:08:02] } 13. O-O { [%eval 0.31] [%clk 0:15:53] } 13... g5?! { [%eval 1.08] } { Inaccuracy. Qd7 was best. } { [%clk 0:07:57] } 14. Be5 { [%eval 1.11] [%clk 0:16:00] } 14... f6 { [%eval 1.0] [%clk 0:07:57] } 15. Bg3 { [%eval 1.01] [%clk 0:16:00] } 15... Bd6 { [%eval 1.37] [%clk 0:07:26] } 16. c4?! { [%eval 0.59] } { Inaccuracy. b5 was best. } { [%clk 0:16:05] } 16... Bxg3 { [%eval 0.77] [%clk 0:07:26] } 17. fxg3 { [%eval 0.79] [%clk 0:16:05] } 17... Qe7? { [%eval 2.06] } { Mistake. O-O was best. } { [%clk 0:07:26] } 18. Bh5+ { [%eval 1.93] [%clk 0:16:05] } 18... Kd7?? { [%eval 4.53] } { Blunder. Kd8 was best. } { [%clk 0:07:26] } 19. c5?? { [%eval 1.18] } { Blunder. b5 was best. } { [%clk 0:16:05] } 19... Bb5 { [%eval 1.63] [%clk 0:07:26] } 20. Rf2 { [%eval 1.17] [%clk 0:16:05] } 20... b6?! { [%eval 2.27] } { Inaccuracy. f5 was best. } { [%clk 0:07:26] } 21. a4 { [%eval 2.26] [%clk 0:16:05] } 21... Bc6?? { [%eval 5.27] } { Blunder. Bc4 was best. } { [%clk 0:07:26] } 22. b5 { [%eval 5.29] [%clk 0:16:05] } 22... Bb7 { [%eval 5.21] [%clk 0:07:26] } 23. c6+ { [%eval 5.09] [%clk 0:16:05] } 23... Bxc6 { [%eval 5.18] [%clk 0:06:12] } 24. bxc6+ { [%eval 5.16] [%clk 0:15:47] } 24... Kxc6 { [%eval 4.94] [%clk 0:06:35] } 25. Rc1+ { [%eval 4.69] [%clk 0:16:12] } 25... Kb7 { [%eval 4.56] [%clk 0:06:35] } 26. Rcf1 { [%eval 4.01] [%clk 0:16:12] } 26... Rhf8 { [%eval 3.88] [%clk 0:06:35] } 27. g4?! { [%eval 2.81] } { Inaccuracy. Qc2 was best. } { [%clk 0:16:12] } 27... f5?! { [%eval 4.35] } { Inaccuracy. a5 was best. } { [%clk 0:06:35] } 28. gxf5 { [%eval 4.18] [%clk 0:16:12] } 28... exf5 { [%eval 4.48] [%clk 0:06:09] } 29. Qa2?! { [%eval 3.47] } { Inaccuracy. Rxf5 was best. } { [%clk 0:16:21] } 29... Qxe3?? { [%eval 8.8] } { Blunder. Rad8 was best. } { [%clk 0:05:03] } 30. Qxd5+ { [%eval 8.67] [%clk 0:16:26] } 30... Kb8 { [%eval 10.92] [%clk 0:02:59] } 31. Bf3 { [%eval 8.92] [%clk 0:16:29] } 31... c6? { [%eval #16] } { Checkmate is now unavoidable. Qxf3 was best. } { [%clk 0:00:20] } 32. Qxc6 { [%eval #16] [%clk 0:16:36] } 32... Rf7 { [%eval #15] [%clk 0:00:26] } 33. Qe8+?? { [%eval -4.31] } { Lost forced checkmate sequence. Qxa8+ was best. } { [%clk 0:16:41] } 33... Qxe8 { [%eval -4.31] [%clk 0:00:31] } 34. Bxa8?! { [%eval -5.46] } { Inaccuracy. Bh5 was best. } { [%clk 0:16:50] } 34... Kxa8 { [%eval -5.55] [%clk 0:00:37] } 35. h3 { [%eval -6.12] [%clk 0:16:55] } 35... h6 { [%eval -5.22] [%clk 0:00:40] } 36. Kh1 { [%eval -6.12] [%clk 0:17:03] } 36... Qd8 { [%eval -5.33] [%clk 0:00:45] } 37. Rd1 { [%eval -5.8] [%clk 0:17:03] } 37... Qd7 { [%eval -5.6] [%clk 0:00:45] } 38. d5 { [%eval -5.9] [%clk 0:17:03] } 38... Qxa4 { [%eval -6.13] [%clk 0:00:45] } 39. Rfd2 { [%eval -6.1] [%clk 0:17:03] } 39... Rd7 { [%eval -6.03] [%clk 0:00:45] } 40. d6 { [%eval -6.04] [%clk 0:17:03] } 40... Kb7 { [%eval -5.93] [%clk 0:00:45] } 41. Re1 { [%eval -6.29] [%clk 0:17:03] } 41... Qb4 { [%eval -6.17] [%clk 0:00:50] } 42. Red1 { [%eval -6.44] [%clk 0:17:52] } 42... a5 { [%eval -6.38] [%clk 0:00:41] } 43. Rd5 { [%eval -6.43] [%clk 0:18:00] } 43... a4 { [%eval -6.42] [%clk 0:00:34] } 44. Rxf5 { [%eval -7.14] [%clk 0:18:09] } 44... a3 { [%eval -7.11] [%clk 0:00:41] } 45. Re5 { [%eval -7.0] [%clk 0:18:09] } 45... a2 { [%eval -6.91] [%clk 0:00:43] } 46. Ree1 { [%eval -7.09] [%clk 0:18:16] } 46... Kc6 { [%eval -6.93] [%clk 0:00:44] } 47. Rc1+ { [%eval -7.05] [%clk 0:18:15] } 47... Kxd6 { [%eval -6.99] [%clk 0:00:22] } 48. Red1+ { [%eval -6.89] [%clk 0:18:24] } 48... Ke7 { [%eval -8.37] [%clk 0:00:31] } 49. Re1+ { [%eval -8.53] [%clk 0:18:32] } 49... Kd8 { [%eval -8.19] [%clk 0:00:37] } 50. Rf1 { [%eval -8.46] [%clk 0:18:39] } 50... b5 { [%eval -8.0] [%clk 0:00:19] } 51. Rf8+? { [%eval #-6] } { Checkmate is now unavoidable. Rf3 was best. } { [%clk 0:18:45] } 51... Ke7? { [%eval -7.47] } { Lost forced checkmate sequence. Qxf8 was best. } { [%clk 0:00:28] } 52. Rff1 { [%eval -7.2] [%clk 0:18:53] } 52... Qb3 { [%eval -6.91] [%clk 0:00:25] } 53. Rce1+ { [%eval -7.03] [%clk 0:18:58] } 53... Kd6 { [%eval -6.85] [%clk 0:00:32] } 54. Rd1+ { [%eval -7.86] [%clk 0:19:04] } 54... Kc7 { [%eval -7.89] [%clk 0:00:39] } 55. Rc1+ { [%eval -8.15] [%clk 0:19:13] } 55... Kb7 { [%eval -7.65] [%clk 0:00:46] } 0-1