Event: Round 9: Obregon Rivero, Juan Carlos - Galaviz Medina, Sion Radamantys
Site: https://lichess.org/broadcast/i-campeonato-nacional-e-internacional-de-ajedrez-monterrey-2025--internacional/round-9/EJr6u9HQ/9rVpfgRf
Date: 2025-10-19
White: Obregon Rivero, Juan Carlos
WhiteTitle: GM
WhiteElo: 2462
Black: Galaviz Medina, Sion Radamantys
BlackTitle: IM
BlackElo: 2515
Result: 1/2-1/2
ECO: B51
Opening: Sicilian Defense: Moscow Variation
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:24:27] } 1... c5 { [%eval 0.24] [%clk 1:24:15] } 2. Nf3 { [%eval 0.2] [%clk 1:30:53] } 2... d6 { [%eval 0.31] [%clk 1:24:12] } 3. Bb5+ { [%eval 0.14] [%clk 1:30:58] } 3... Nd7 { [%eval 0.12] [%clk 1:24:34] } 4. Ba4 { [%eval 0.18] [%clk 1:30:19] } 4... Nf6 { [%eval 0.04] [%clk 1:24:17] } 5. O-O { [%eval 0.11] [%clk 1:30:34] } 5... a6 { [%eval 0.12] [%clk 1:24:42] } 6. c4 { [%eval 0.26] [%clk 1:30:56] } 6... e6 { [%eval 0.36] [%clk 1:24:51] } 7. Nc3 { [%eval 0.23] [%clk 1:29:11] } 7... Be7 { [%eval 0.41] [%clk 1:24:37] } 8. d4 { [%eval 0.41] [%clk 1:28:34] } 8... cxd4 { [%eval 0.4] [%clk 1:25:01] } 9. Nxd4 { [%eval 0.44] [%clk 1:28:54] } 9... O-O { [%eval 0.31] [%clk 1:24:58] } 10. Be3 { [%eval 0.0] [%clk 1:27:52] } 10... Ne5 { [%eval 0.0] [%clk 1:22:47] } 11. Bb3 { [%eval 0.0] [%clk 1:28:19] } 11... Qc7 { [%eval 0.11] [%clk 1:20:43] } 12. Qe2 { [%eval -0.15] [%clk 1:17:25] } 12... Neg4 { [%eval -0.24] [%clk 1:13:40] } 13. Bg5 { [%eval -0.26] [%clk 1:16:25] } 13... d5 { [%eval -0.26] [%clk 1:11:06] } 14. g3 { [%eval -0.64] [%clk 0:51:41] } 14... dxc4 { [%eval -0.57] [%clk 0:56:28] } 15. Bxc4?! { [%eval -1.37] } { Inaccuracy. Qxc4 was best. } { [%clk 0:45:43] } 15... h6 { [%eval -1.39] [%clk 0:45:27] } 16. Bd2 { [%eval -1.71] [%clk 0:44:11] } 16... b5 { [%eval -1.73] [%clk 0:35:19] } 17. Bb3 { [%eval -1.76] [%clk 0:43:52] } 17... Qc5?! { [%eval -1.05] } { Inaccuracy. Rd8 was best. } { [%clk 0:32:11] } 18. Nc2 { [%eval -1.62] [%clk 0:31:51] } 18... Bb7 { [%eval -1.58] [%clk 0:32:00] } 19. h3 { [%eval -1.56] [%clk 0:26:23] } 19... Ne5 { [%eval -1.77] [%clk 0:32:15] } 20. Be3 { [%eval -1.74] [%clk 0:24:16] } 20... Qc7 { [%eval -1.54] [%clk 0:32:06] } 21. Nd4?! { [%eval -2.2] } { Inaccuracy. f4 was best. } { [%clk 0:18:27] } 21... b4 { [%eval -2.31] [%clk 0:29:24] } 22. Na4 { [%eval -2.17] [%clk 0:17:27] } 22... Bxe4 { [%eval -1.81] [%clk 0:27:22] } 23. Bf4 { [%eval -1.72] [%clk 0:10:48] } 23... Bd6?! { [%eval -1.06] } { Inaccuracy. Qa5 was best. } { [%clk 0:21:19] } 24. Rac1 { [%eval -1.0] [%clk 0:09:59] } 24... Qa5 { [%eval -0.97] [%clk 0:12:14] } 25. Nc5 { [%eval -1.15] [%clk 0:04:28] } 25... Bxc5?! { [%eval -0.51] } { Inaccuracy. Nf3+ was best. } { [%clk 0:10:02] } 26. Bxe5 { [%eval -0.55] [%clk 0:04:56] } 26... Bxd4 { [%eval -0.57] [%clk 0:10:08] } 27. Bxd4 { [%eval -0.6] [%clk 0:05:15] } 27... Qf5 { [%eval -0.74] [%clk 0:09:38] } 28. g4 { [%eval -0.69] [%clk 0:02:12] } 28... Qf3 { [%eval -0.65] [%clk 0:09:12] } 29. Qxf3 { [%eval -0.67] [%clk 0:02:09] } 29... Bxf3 { [%eval -0.7] [%clk 0:09:40] } 30. Rc7 { [%eval -0.86] [%clk 0:01:40] } 30... Nd5 { [%eval -0.91] [%clk 0:09:29] } 31. Rc5 { [%eval -0.88] [%clk 0:00:59] } 31... Rfd8 { [%eval -0.85] [%clk 0:09:19] } 32. Be5 { [%eval -1.29] [%clk 0:00:51] } 32... a5 { [%eval -0.75] [%clk 0:08:28] } 33. Rfc1 { [%eval -0.91] [%clk 0:00:46] } 33... a4 { [%eval -0.89] [%clk 0:08:41] } 34. Bc2?! { [%eval -1.67] } { Inaccuracy. Bxd5 was best. } { [%clk 0:00:52] } 34... f6 { [%eval -1.77] [%clk 0:08:39] } 35. Bc7 { [%eval -1.51] [%clk 0:00:36] } 35... Rd7 { [%eval -1.72] [%clk 0:05:55] } 36. Bg3 { [%eval -1.45] [%clk 0:00:40] } 36... Kf7 { [%eval -1.67] [%clk 0:05:35] } 37. Kh2 { [%eval -1.93] [%clk 0:00:35] } 37... a3?! { [%eval -1.13] } { Inaccuracy. e5 was best. } { [%clk 0:03:56] } 38. bxa3 { [%eval -1.34] [%clk 0:00:41] } 38... Rxa3 { [%eval -1.35] [%clk 0:04:22] } 39. Bb3 { [%eval -1.34] [%clk 0:00:40] } 39... Nc3 { [%eval -1.3] [%clk 0:04:38] } 40. Rc4 { [%eval -1.02] [%clk 0:00:31] } 40... Nxa2?! { [%eval 0.0] } { Inaccuracy. Bd5 was best. } { [%clk 0:03:23] } 41. Rc7 { [%eval 0.0] [%clk 0:00:41] } 41... Nxc1 { [%eval 0.0] [%clk 0:00:37] } 42. Rxd7+ { [%eval 0.0] [%clk 0:01:05] } 42... Ke8 { [%eval 0.0] [%clk 0:01:05] } 43. Bxe6 { [%eval -0.04] [%clk 0:01:20] } 43... Ne2 { [%eval 0.0] [%clk 0:00:34] } 44. Bd6 { [%eval 0.0] [%clk 0:00:49] } 44... Ra1 { [%eval 0.0] [%clk 0:00:45] } 45. Re7+ { [%eval 0.0] [%clk 0:01:12] } 45... Kd8 { [%eval 0.0] [%clk 0:01:13] } 46. Rd7+ { [%eval 0.0] [%clk 0:01:35] } 46... Ke8 { [%eval 0.0] [%clk 0:01:42] } 47. Re7+ { [%eval 0.0] [%clk 0:01:58] } 47... Kd8 { [%eval 0.0] [%clk 0:02:09] } 48. Rd7+ { [%eval 0.0] [%clk 0:02:20] } 48... Ke8 { [%eval 0.0] [%clk 0:02:38] } 49. Re7+ { [%eval 0.0] [%clk 0:02:43] } 49... Kd8 { [%eval 0.0] [%clk 0:03:05] } 50. Rd7+ { [%eval 0.0] [%clk 0:03:00] } 1/2-1/2