Event: Round 4: Grisales Castrillon, Juan Steban - Sebastian Rondano Pastrana
Site: https://lichess.org/broadcast/final-nacional-colombia-intercolegiados-activo-2025--juvenil-masculino/round-4/OAewmyNR/nPGVu0cD
Date: 2025-10-28
White: Grisales Castrillon, Juan Steban
Black: Sebastian Rondano Pastrana
Result: 0-1
ECO: E40
Opening: Nimzo-Indian Defense: Rubinstein System
Variant: Standard
TimeControl: 15+10

1. d4 { [%eval 0.17] [%clk 0:15:19] } 1... Nf6 { [%eval 0.19] [%clk 0:15:19] } 2. c4 { [%eval 0.18] [%clk 0:15:28] } 2... e6 { [%eval 0.14] [%clk 0:15:27] } 3. Nc3 { [%eval 0.09] [%clk 0:15:37] } 3... Bb4 { [%eval 0.15] [%clk 0:15:35] } 4. e3 { [%eval 0.06] [%clk 0:15:46] } 4... d5 { [%eval 0.32] [%clk 0:15:36] } 5. Ne2 { [%eval -0.16] [%clk 0:15:53] } 5... c5?! { [%eval 0.41] } { Inaccuracy. dxc4 was best. } { [%clk 0:15:22] } 6. a3 { [%eval 0.22] [%clk 0:15:57] } 6... Bxc3+ { [%eval 0.36] [%clk 0:15:29] } 7. Nxc3 { [%eval 0.21] [%clk 0:16:06] } 7... cxd4 { [%eval 0.27] [%clk 0:15:37] } 8. exd4 { [%eval 0.29] [%clk 0:16:14] } 8... O-O { [%eval 0.44] [%clk 0:14:42] } 9. Bg5 { [%eval -0.07] [%clk 0:15:42] } 9... Nbd7? { [%eval 1.12] } { Mistake. dxc4 was best. } { [%clk 0:14:42] } 10. cxd5?! { [%eval 0.4] } { Inaccuracy. c5 was best. } { [%clk 0:15:36] } 10... exd5 { [%eval 0.55] [%clk 0:14:51] } 11. Bd3 { [%eval 0.3] [%clk 0:15:16] } 11... Re8+ { [%eval 0.34] [%clk 0:14:52] } 12. Be2 { [%eval 0.32] [%clk 0:15:00] } 12... Qb6 { [%eval 0.24] [%clk 0:14:45] } 13. Qc2 { [%eval -0.07] [%clk 0:14:35] } 13... h6 { [%eval 0.18] [%clk 0:13:17] } 14. Be3 { [%eval 0.16] [%clk 0:14:01] } 14... Nf8 { [%eval 0.27] [%clk 0:12:53] } 15. O-O { [%eval 0.26] [%clk 0:14:05] } 15... Be6 { [%eval 0.35] [%clk 0:11:27] } 16. Na4 { [%eval 0.2] [%clk 0:11:49] } 16... Qd6 { [%eval 0.27] [%clk 0:11:02] } 17. Nc5 { [%eval 0.21] [%clk 0:11:01] } 17... Rec8 { [%eval 0.5] [%clk 0:08:03] } 18. Qd2 { [%eval 0.3] [%clk 0:09:52] } 18... Ne4 { [%eval 0.34] [%clk 0:05:58] } 19. Qd3 { [%eval 0.33] [%clk 0:06:51] } 19... Bf5 { [%eval 0.32] [%clk 0:04:10] } 20. f3?? { [%eval -2.53] } { Blunder. Qb3 was best. } { [%clk 0:05:24] } 20... Ng3 { [%eval -2.85] [%clk 0:03:14] } 21. Qd2 { [%eval -2.76] [%clk 0:04:46] } 21... Nxf1 { [%eval -2.76] [%clk 0:02:21] } 22. Rxf1 { [%eval -2.82] [%clk 0:04:27] } 22... b6 { [%eval -2.77] [%clk 0:02:30] } 23. Bf4 { [%eval -3.05] [%clk 0:04:00] } 23... Qg6 { [%eval -2.43] [%clk 0:02:32] } 24. Nb3? { [%eval -4.89] } { Mistake. Nd3 was best. } { [%clk 0:03:21] } 24... Rc2 { [%eval -4.85] [%clk 0:02:31] } 25. Qe3 { [%eval -4.79] [%clk 0:02:54] } 25... Rac8 { [%eval -4.7] [%clk 0:02:00] } 26. g4 { [%eval -5.57] [%clk 0:02:31] } 26... Ne6?! { [%eval -4.03] } { Inaccuracy. Rxe2 was best. } { [%clk 0:01:40] } 27. Bg3?! { [%eval -5.92] } { Inaccuracy. Ba6 was best. } { [%clk 0:02:11] } 27... Rxe2 { [%eval -5.77] [%clk 0:01:40] } 28. Qxe2 { [%eval -5.69] [%clk 0:01:04] } 28... Bd3 { [%eval -5.67] [%clk 0:01:48] } 29. Qe1 { [%eval -7.17] [%clk 0:01:09] } 29... Bxf1 { [%eval -7.07] [%clk 0:01:55] } 30. Qxf1 { [%eval -7.29] [%clk 0:01:11] } 30... Qc2 { [%eval -7.36] [%clk 0:02:03] } 31. Na1 { [%eval -8.47] [%clk 0:01:10] } 31... Qxb2 { [%eval -8.35] [%clk 0:02:09] } 32. a4 { [%eval -9.37] [%clk 0:01:09] } 32... Qxd4+ { [%eval -7.84] [%clk 0:02:12] } 33. Bf2 { [%eval -7.28] [%clk 0:01:17] } 33... Qxa4 { [%eval -6.93] [%clk 0:02:17] } 34. Qe2?! { [%eval -83.69] } { Inaccuracy. h3 was best. } { [%clk 0:01:12] } 34... Rc1+ { [%eval -9.43] [%clk 0:02:23] } 35. Qd1? { [%eval #-4] } { Checkmate is now unavoidable. Be1 was best. } { [%clk 0:01:09] } 0-1