Event: Ronda 1: Parra Balbas, Ian Alexander - Contreras Medina, Ruben Dario
Date: 2025-07-27
White: Parra Balbas, Ian Alexander
Black: Contreras Medina, Ruben Dario
BlackTitle: CM
BlackElo: 2124
Result: 0-1
ECO: B30
Opening: Sicilian Defense: Old Sicilian
Variant: Standard

1. e4 { [%eval 0.18] [%clk 0:15:07] } 1... c5 { [%eval 0.25] [%clk 0:15:09] } 2. Nf3 { [%eval 0.2] [%clk 0:15:11] } 2... Nc6 { [%eval 0.3] [%clk 0:15:13] } 3. d3 { [%eval -0.14] [%clk 0:15:14] } 3... g6 { [%eval 0.0] [%clk 0:15:16] } 4. g3 { [%eval -0.18] [%clk 0:15:17] } 4... Bg7 { [%eval -0.1] [%clk 0:15:19] } 5. Bg2 { [%eval -0.06] [%clk 0:15:20] } 5... d6 { [%eval -0.12] [%clk 0:15:22] } 6. O-O { [%eval -0.1] [%clk 0:15:22] } 6... e5 { [%eval 0.0] [%clk 0:15:22] } 7. c3 { [%eval -0.08] [%clk 0:15:19] } 7... Nge7 { [%eval 0.0] [%clk 0:15:25] } 8. Re1 { [%eval -0.17] [%clk 0:15:13] } 8... O-O { [%eval -0.15] [%clk 0:15:28] } 9. a3 { [%eval -0.19] [%clk 0:15:12] } 9... h6 { [%eval -0.07] [%clk 0:15:30] } 10. b4 { [%eval -0.08] [%clk 0:15:13] } 10... b6?! { [%eval 0.49] } { Inaccuracy. a6 was best. } { [%clk 0:15:31] } 11. b5 { [%eval 0.55] [%clk 0:13:02] } 11... Nb8 { [%eval 0.53] [%clk 0:15:33] } 12. Be3 { [%eval 0.03] [%clk 0:11:56] } 12... Bg4 { [%eval 0.34] [%clk 0:15:27] } 13. Qd2 { [%eval 0.16] [%clk 0:11:40] } 13... Kh7 { [%eval 0.24] [%clk 0:15:30] } 14. c4 { [%eval -0.27] [%clk 0:11:10] } 14... Nd7 { [%eval 0.24] [%clk 0:13:34] } 15. Nc3 { [%eval 0.3] [%clk 0:10:47] } 15... a5 { [%eval 0.36] [%clk 0:13:22] } 16. h3 { [%eval 0.27] [%clk 0:08:37] } 16... Bxf3 { [%eval 0.44] [%clk 0:13:22] } 17. Bxf3 { [%eval 0.66] [%clk 0:08:40] } 17... Ra7 { [%eval 0.45] [%clk 0:13:25] } 18. Bg2 { [%eval 0.46] [%clk 0:06:52] } 18... f5 { [%eval 0.5] [%clk 0:13:24] } 19. Rac1 { [%eval -0.04] [%clk 0:06:21] } 19... Nf6?! { [%eval 0.53] } { Inaccuracy. f4 was best. } { [%clk 0:13:21] } 20. f3?! { [%eval -0.53] } { Inaccuracy. Kh1 was best. } { [%clk 0:04:28] } 20... Nh5 { [%eval -0.52] [%clk 0:12:34] } 21. Bf2 { [%eval -0.68] [%clk 0:04:02] } 21... Bf6 { [%eval -0.9] [%clk 0:12:33] } 22. Qe2 { [%eval -1.17] [%clk 0:02:15] } 22... f4 { [%eval -1.22] [%clk 0:10:58] } 23. g4 { [%eval -1.38] [%clk 0:02:08] } 23... Ng3 { [%eval -1.36] [%clk 0:11:01] } 24. Bxg3 { [%eval -1.87] [%clk 0:02:05] } 24... fxg3 { [%eval -1.86] [%clk 0:11:05] } 25. Rf1 { [%eval -1.93] [%clk 0:00:56] } 25... Bg5 { [%eval -1.88] [%clk 0:11:08] } 26. Rc2 { [%eval -1.84] [%clk 0:00:59] } 26... Bf4 { [%eval -1.83] [%clk 0:10:59] } 27. Nd5?! { [%eval -2.87] } { Inaccuracy. Qe1 was best. } { [%clk 0:00:14] } 27... Ng8? { [%eval -1.52] } { Mistake. Nxd5 was best. } { [%clk 0:09:19] } 28. Nxf4 { [%eval -1.7] [%clk 0:00:16] } 28... Rxf4 { [%eval -1.57] [%clk 0:09:08] } 29. Qe3? { [%eval -3.35] } { Mistake. Qe1 was best. } { [%clk 0:00:09] } 29... Raf7 { [%eval -3.22] [%clk 0:09:02] } 30. a4 { [%eval -3.56] [%clk 0:00:07] } 30... Qg5 { [%eval -3.69] [%clk 0:08:53] } 31. Qe2 { [%eval -4.34] [%clk 0:00:07] } 31... h5 { [%eval -4.07] [%clk 0:08:52] } 32. Rb2 { [%eval -4.82] [%clk 0:00:07] } 32... Nf6 { [%eval -4.74] [%clk 0:08:33] } 33. Rc2 { [%eval -4.59] [%clk 0:00:06] } 33... Ne8 { [%eval -4.52] [%clk 0:08:34] } 34. Rb2 { [%eval -5.06] [%clk 0:00:09] } 34... Ng7 { [%eval -4.84] [%clk 0:08:38] } 35. Rc2 { [%eval -5.38] [%clk 0:00:12] } 35... Ne6 { [%eval -5.0] [%clk 0:08:41] } 36. Rb2?! { [%eval -7.05] } { Inaccuracy. gxh5 was best. } { [%clk 0:00:00] } 0-1