Event: Round 6: Castro Silva, Juan David - Rincon Barrera, Oliver Alexander
Site: https://lichess.org/broadcast/final-nacional-colombia-intercolegiados-activo-2025--juvenil-masculino/round-6/EwljxM8F/slp1UOmL
Date: 2025-10-28
White: Castro Silva, Juan David
Black: Rincon Barrera, Oliver Alexander
Result: 1-0
ECO: D10
Opening: Slav Defense: Exchange Variation
Variant: Standard
TimeControl: 15+10

1. d4 { [%eval 0.17] [%clk 0:15:07] } 1... d5 { [%eval 0.18] [%clk 0:15:19] } 2. c4 { [%eval 0.18] [%clk 0:15:27] } 2... c6 { [%eval 0.21] [%clk 0:15:27] } 3. cxd5 { [%eval 0.15] [%clk 0:15:34] } 3... cxd5 { [%eval 0.19] [%clk 0:15:36] } 4. Nc3 { [%eval 0.07] [%clk 0:15:40] } 4... e6 { [%eval 0.31] [%clk 0:15:44] } 5. a3 { [%eval 0.07] [%clk 0:15:48] } 5... Nf6 { [%eval 0.34] [%clk 0:15:51] } 6. Bf4 { [%eval 0.22] [%clk 0:15:54] } 6... Nc6 { [%eval 0.22] [%clk 0:15:57] } 7. e3 { [%eval 0.23] [%clk 0:16:01] } 7... Be7 { [%eval 0.31] [%clk 0:16:04] } 8. Bb5 { [%eval 0.21] [%clk 0:16:06] } 8... Bd7 { [%eval 0.2] [%clk 0:16:13] } 9. Nf3 { [%eval 0.0] [%clk 0:16:11] } 9... a6 { [%eval 0.15] [%clk 0:16:11] } 10. Bxc6 { [%eval -0.12] [%clk 0:16:16] } 10... Bxc6 { [%eval -0.04] [%clk 0:16:19] } 11. O-O { [%eval -0.12] [%clk 0:16:21] } 11... O-O { [%eval -0.08] [%clk 0:16:24] } 12. Ne5 { [%eval -0.13] [%clk 0:16:29] } 12... Bb5 { [%eval 0.26] [%clk 0:16:24] } 13. Re1 { [%eval 0.01] [%clk 0:16:30] } 13... Bd6 { [%eval 0.2] [%clk 0:16:22] } 14. Nxb5 { [%eval 0.09] [%clk 0:16:42] } 14... axb5 { [%eval 0.24] [%clk 0:16:30] } 15. b4?! { [%eval -0.37] } { Inaccuracy. Bg5 was best. } { [%clk 0:16:49] } 15... Rc8 { [%eval 0.0] [%clk 0:16:32] } 16. Rc1 { [%eval -0.25] [%clk 0:16:50] } 16... Rxc1 { [%eval -0.31] [%clk 0:16:37] } 17. Qxc1 { [%eval -0.38] [%clk 0:16:58] } 17... Nh5 { [%eval 0.0] [%clk 0:16:23] } 18. Nd3 { [%eval -0.18] [%clk 0:16:20] } 18... g5?! { [%eval 0.88] } { Inaccuracy. Nxf4 was best. } { [%clk 0:14:21] } 19. Bxd6 { [%eval 0.9] [%clk 0:16:21] } 19... Qxd6 { [%eval 0.9] [%clk 0:14:29] } 20. Nc5?! { [%eval 0.31] } { Inaccuracy. Re2 was best. } { [%clk 0:16:14] } 20... Rc8 { [%eval 0.52] [%clk 0:14:19] } 21. e4 { [%eval 0.15] [%clk 0:16:05] } 21... dxe4?? { [%eval 3.48] } { Blunder. h6 was best. } { [%clk 0:14:19] } 22. Qxg5+ { [%eval 3.24] [%clk 0:16:12] } 22... Kf8? { [%eval 5.45] } { Mistake. Ng7 was best. } { [%clk 0:14:20] } 23. Qxh5 { [%eval 5.41] [%clk 0:16:18] } 23... b6 { [%eval 5.58] [%clk 0:14:21] } 24. Nxe4 { [%eval 5.43] [%clk 0:16:10] } 24... Qxd4 { [%eval 5.44] [%clk 0:14:24] } 25. Qh6+ { [%eval 5.35] [%clk 0:16:10] } 25... Ke8 { [%eval 5.46] [%clk 0:13:57] } 26. Nf6+ { [%eval 5.38] [%clk 0:16:18] } 26... Ke7 { [%eval 5.42] [%clk 0:13:56] } 27. Qg5?? { [%eval 1.33] } { Blunder. Ne4 was best. } { [%clk 0:13:58] } 27... Qxf6 { [%eval 1.27] [%clk 0:13:37] } 28. Qxf6+? { [%eval 0.0] } { Mistake. Qxb5 was best. } { [%clk 0:14:28] } 28... Kxf6 { [%eval 0.0] [%clk 0:13:45] } 29. Ra1 { [%eval 0.0] [%clk 0:14:37] } 29... Ke5 { [%eval -0.02] [%clk 0:13:44] } 30. Kf1 { [%eval -0.01] [%clk 0:14:46] } 30... Kd4 { [%eval 0.0] [%clk 0:13:51] } 31. Ke2 { [%eval -0.01] [%clk 0:14:46] } 31... Rc2+ { [%eval 0.0] [%clk 0:13:55] } 32. Kf3 { [%eval 0.0] [%clk 0:14:48] } 32... Rc3+ { [%eval 0.0] [%clk 0:14:04] } 33. Kf4 { [%eval -0.23] [%clk 0:14:55] } 33... e5+ { [%eval 0.0] [%clk 0:14:07] } 34. Kf5 { [%eval 0.0] [%clk 0:15:04] } 34... Rc2 { [%eval 0.0] [%clk 0:14:14] } 35. Rd1+ { [%eval -0.06] [%clk 0:14:57] } 35... Kc4 { [%eval 0.0] [%clk 0:14:16] } 36. Kxe5 { [%eval -0.14] [%clk 0:15:01] } 36... Re2+ { [%eval 0.0] [%clk 0:14:23] } 37. Kd6 { [%eval 0.0] [%clk 0:15:08] } 37... Rxf2 { [%eval 0.08] [%clk 0:14:31] } 38. Rg1 { [%eval 0.0] [%clk 0:15:11] } 38... Kb3 { [%eval 0.0] [%clk 0:14:36] } 39. Kc6 { [%eval 0.0] [%clk 0:15:18] } 39... Rf6+ { [%eval 0.22] [%clk 0:14:40] } 40. Kxb5 { [%eval 0.29] [%clk 0:15:19] } 40... Kxa3 { [%eval 0.36] [%clk 0:14:47] } 41. Ra1+ { [%eval 0.21] [%clk 0:15:15] } 41... Kb2?? { [%eval 2.34] } { Blunder. Kb3 was best. } { [%clk 0:14:55] } 42. Ra6?? { [%eval 0.0] } { Blunder. Re1 was best. } { [%clk 0:15:24] } 42... Kb3 { [%eval 0.0] [%clk 0:14:39] } 43. Rxb6 { [%eval 0.0] [%clk 0:15:32] } 43... Rf4?? { [%eval 3.45] } { Blunder. Rxb6+ was best. } { [%clk 0:14:48] } 44. Kc6?? { [%eval 0.0] } { Blunder. Ka5 was best. } { [%clk 0:15:25] } 44... Rc4+?? { [%eval 3.8] } { Blunder. Rf6+ was best. } { [%clk 0:14:56] } 45. Kd7 { [%eval 3.33] [%clk 0:15:30] } 45... Rd4+ { [%eval 3.84] [%clk 0:15:04] } 46. Ke7 { [%eval 3.46] [%clk 0:15:38] } 46... Rf4?! { [%eval 5.11] } { Inaccuracy. Rd2 was best. } { [%clk 0:15:11] } 47. Kf8?! { [%eval 3.28] } { Inaccuracy. g3 was best. } { [%clk 0:15:23] } 47... Rxb4?? { [%eval 10.93] } { Blunder. Rf2 was best. } { [%clk 0:15:17] } 48. Rxb4+ { [%eval 75.72] [%clk 0:15:32] } 48... Kxb4 { [%eval 65.47] [%clk 0:15:25] } 49. g4 { [%eval 71.43] [%clk 0:15:41] } 49... f6 { [%eval 15.07] [%clk 0:15:32] } 50. h4 { [%eval 73.05] [%clk 0:15:49] } 50... Kc4 { [%eval 61.69] [%clk 0:15:41] } 51. Kf7 { [%eval 59.89] [%clk 0:15:58] } 51... f5 { [%eval 11.72] [%clk 0:14:29] } 52. gxf5 { [%eval 67.19] [%clk 0:16:03] } 52... Kd5?! { [%eval #16] } { Checkmate is now unavoidable. Kb5 was best. } { [%clk 0:14:37] } 53. f6?! { [%eval 47.96] } { Lost forced checkmate sequence. h5 was best. } { [%clk 0:16:11] } 53... h5 { [%eval 17.84] [%clk 0:14:44] } 54. Ke7 { [%eval 18.94] [%clk 0:16:19] } 54... Ke5?! { [%eval #11] } { Checkmate is now unavoidable. Ke4 was best. } { [%clk 0:14:53] } 55. f7 { [%eval #10] [%clk 0:16:27] } 55... Kf5 { [%eval #10] [%clk 0:14:56] } 56. f8=Q+ { [%eval #9] [%clk 0:16:27] } 56... Kg4 { [%eval #6] [%clk 0:15:04] } 57. Qg7+ { [%eval #8] [%clk 0:16:29] } 57... Kxh4 { [%eval #6] [%clk 0:15:12] } 58. Ke6 { [%eval #5] [%clk 0:16:38] } 58... Kh3 { [%eval #5] [%clk 0:15:19] } 59. Kf5 { [%eval #4] [%clk 0:16:46] } 59... h4 { [%eval #4] [%clk 0:15:28] } 60. Kf4 { [%eval #3] [%clk 0:16:55] } 1-0