Event: Round 7: Sierra Castillo, Eyber - Valencia Lopez, Rudiger Estiven
Site: https://lichess.org/broadcast/final-nacional-colombia-intercolegiados-blitz-2025--juvenil-masculino/round-7/N6YFy4KS/lSyHs2JM
Date: 2025-10-28
White: Sierra Castillo, Eyber
WhiteElo: 1702
Black: Valencia Lopez, Rudiger Estiven
BlackElo: 1646
Result: 0-1
ECO: B12
Opening: Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense
Variant: Standard
TimeControl: 4+2

1. e4 { [%eval 0.18] [%clk 0:04:03] } 1... c6 { [%eval 0.23] [%clk 0:04:02] } 2. d4 { [%eval 0.24] [%clk 0:04:04] } 2... d5 { [%eval 0.24] [%clk 0:04:03] } 3. e5 { [%eval 0.33] [%clk 0:04:05] } 3... c5 { [%eval 0.32] [%clk 0:04:04] } 4. dxc5 { [%eval 0.27] [%clk 0:04:06] } 4... Nc6 { [%eval 0.5] [%clk 0:04:05] } 5. Nf3 { [%eval 0.38] [%clk 0:04:05] } 5... Bg4 { [%eval 0.39] [%clk 0:04:06] } 6. Bf4?! { [%eval -0.42] } { Inaccuracy. c3 was best. } { [%clk 0:04:04] } 6... e6 { [%eval -0.43] [%clk 0:04:05] } 7. h3 { [%eval -0.54] [%clk 0:04:05] } 7... Bxf3 { [%eval -0.4] [%clk 0:04:05] } 8. Qxf3 { [%eval -0.73] [%clk 0:04:05] } 8... Bxc5 { [%eval -0.81] [%clk 0:04:05] } 9. Bd3 { [%eval -0.84] [%clk 0:04:01] } 9... Nge7 { [%eval -0.84] [%clk 0:04:03] } 10. c3 { [%eval -1.07] [%clk 0:03:59] } 10... Qc7 { [%eval -1.1] [%clk 0:03:55] } 11. Qe2 { [%eval -1.26] [%clk 0:03:51] } 11... Ng6?! { [%eval -0.68] } { Inaccuracy. f6 was best. } { [%clk 0:03:53] } 12. Bxg6 { [%eval -0.69] [%clk 0:03:52] } 12... hxg6 { [%eval -0.23] [%clk 0:03:53] } 13. Nd2 { [%eval -0.15] [%clk 0:03:46] } 13... a5 { [%eval 0.19] [%clk 0:03:37] } 14. O-O { [%eval 0.08] [%clk 0:03:42] } 14... O-O { [%eval 0.15] [%clk 0:03:22] } 15. Nb3 { [%eval -0.09] [%clk 0:03:34] } 15... Bb6 { [%eval 0.01] [%clk 0:03:11] } 16. Rad1 { [%eval -0.08] [%clk 0:03:28] } 16... a4 { [%eval 0.02] [%clk 0:03:10] } 17. Nd4 { [%eval -0.29] [%clk 0:03:28] } 17... a3 { [%eval 0.23] [%clk 0:02:59] } 18. b3 { [%eval 0.0] [%clk 0:03:22] } 18... Rfc8 { [%eval 0.48] [%clk 0:02:54] } 19. Nb5 { [%eval 0.68] [%clk 0:03:17] } 19... Qd7 { [%eval 0.78] [%clk 0:02:42] } 20. Nd6 { [%eval 0.56] [%clk 0:03:18] } 20... Rd8 { [%eval 0.57] [%clk 0:02:34] } 21. c4?! { [%eval 0.0] } { Inaccuracy. Rfe1 was best. } { [%clk 0:03:17] } 21... Nd4?? { [%eval 2.85] } { Blunder. Bd4 was best. } { [%clk 0:01:57] } 22. Qe3 { [%eval 2.58] [%clk 0:02:27] } 22... dxc4 { [%eval 2.66] [%clk 0:01:47] } 23. Rxd4?? { [%eval -1.54] } { Blunder. bxc4 was best. } { [%clk 0:02:19] } 23... cxb3 { [%eval -1.63] [%clk 0:01:42] } 24. Qd2? { [%eval -3.55] } { Mistake. axb3 was best. } { [%clk 0:01:59] } 24... Bxd4 { [%eval -3.81] [%clk 0:01:38] } 25. Qxd4 { [%eval -3.49] [%clk 0:02:00] } 25... bxa2 { [%eval -3.02] [%clk 0:01:30] } 26. Ra1 { [%eval -3.7] [%clk 0:01:56] } 26... Qa4 { [%eval -3.49] [%clk 0:01:31] } 27. Rxa2?? { [%eval -9.23] } { Blunder. Qxa4 was best. } { [%clk 0:01:49] } 27... Qxd4 { [%eval -8.85] [%clk 0:01:30] } 28. Be3 { [%eval -9.16] [%clk 0:01:47] } 28... Qd1+ { [%eval -8.88] [%clk 0:01:30] } 29. Kh2 { [%eval -8.64] [%clk 0:01:48] } 29... Rxd6 { [%eval -8.48] [%clk 0:01:31] } 30. exd6 { [%eval -8.36] [%clk 0:01:48] } 30... Qxd6+ { [%eval -8.26] [%clk 0:01:31] } 31. g3 { [%eval -8.42] [%clk 0:01:46] } 31... b5 { [%eval -8.38] [%clk 0:01:31] } 32. Bf4 { [%eval -8.46] [%clk 0:01:44] } 32... e5 { [%eval -8.57] [%clk 0:01:31] } 33. Be3 { [%eval -9.9] [%clk 0:01:45] } 33... b4 { [%eval -9.74] [%clk 0:01:31] } 34. Ra1 { [%eval -9.94] [%clk 0:01:43] } 0-1