Event: Round 7: Obregon Rivero, Juan Carlos - Hernandez Guerrero, Gilberto
Site: https://lichess.org/broadcast/i-campeonato-nacional-e-internacional-de-ajedrez-monterrey-2025--internacional/round-7/Bh1J3HYC/7iBZe0Dt
Date: 2025-10-18
White: Obregon Rivero, Juan Carlos
WhiteTitle: GM
WhiteElo: 2462
Black: Hernandez Guerrero, Gilberto
BlackTitle: GM
BlackElo: 2401
Result: 1-0
ECO: B30
Opening: Sicilian Defense: Nyezhmetdinov-Rossolimo Attack
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:28:21] } 1... c5 { [%eval 0.24] [%clk 1:29:39] } 2. Nf3 { [%eval 0.2] [%clk 1:28:42] } 2... Nc6 { [%eval 0.3] [%clk 1:27:22] } 3. Bb5 { [%eval 0.17] [%clk 1:29:06] } 3... Nf6 { [%eval 0.24] [%clk 1:25:52] } 4. Nc3 { [%eval 0.29] [%clk 1:28:22] } 4... Qc7 { [%eval 0.43] [%clk 1:23:39] } 5. O-O { [%eval 0.42] [%clk 1:20:50] } 5... Nd4 { [%eval 0.27] [%clk 1:23:23] } 6. Re1 { [%eval 0.39] [%clk 1:20:52] } 6... a6 { [%eval 0.33] [%clk 1:23:39] } 7. Bf1 { [%eval 0.38] [%clk 1:19:20] } 7... e5 { [%eval 0.28] [%clk 1:23:58] } 8. d3 { [%eval 0.21] [%clk 1:16:39] } 8... h6?! { [%eval 0.95] } { Inaccuracy. Be7 was best. } { [%clk 1:18:29] } 9. a4 { [%eval 0.55] [%clk 1:13:29] } 9... Be7 { [%eval 0.54] [%clk 1:16:17] } 10. a5 { [%eval 0.55] [%clk 1:12:12] } 10... d6 { [%eval 0.61] [%clk 1:16:21] } 11. Nb1?! { [%eval -0.2] } { Inaccuracy. Nd2 was best. } { [%clk 0:39:18] } 11... Nc6 { [%eval -0.28] [%clk 1:02:07] } 12. Bd2 { [%eval -0.33] [%clk 0:39:27] } 12... O-O { [%eval -0.3] [%clk 1:02:29] } 13. Bc3 { [%eval -0.29] [%clk 0:38:13] } 13... Be6 { [%eval -0.29] [%clk 1:02:41] } 14. Nbd2 { [%eval -0.35] [%clk 0:38:08] } 14... Nd7 { [%eval 0.02] [%clk 1:01:08] } 15. Nc4 { [%eval -0.11] [%clk 0:37:06] } 15... f5 { [%eval -0.26] [%clk 1:00:03] } 16. Ne3 { [%eval -0.15] [%clk 0:37:17] } 16... f4 { [%eval 0.26] [%clk 0:58:17] } 17. Nd5 { [%eval 0.17] [%clk 0:37:39] } 17... Qd8 { [%eval 0.23] [%clk 0:57:09] } 18. Qb1?! { [%eval -0.62] } { Inaccuracy. b4 was best. } { [%clk 0:31:36] } 18... g5 { [%eval -0.69] [%clk 0:48:55] } 19. b4 { [%eval -0.55] [%clk 0:31:02] } 19... g4 { [%eval -0.6] [%clk 0:49:08] } 20. Nd2 { [%eval -0.53] [%clk 0:31:24] } 20... Rb8 { [%eval -0.44] [%clk 0:49:10] } 21. bxc5 { [%eval -0.5] [%clk 0:26:54] } 21... dxc5 { [%eval -0.45] [%clk 0:48:57] } 22. Nc4 { [%eval -0.1] [%clk 0:27:00] } 22... Bh4 { [%eval 0.0] [%clk 0:46:44] } 23. g3 { [%eval 0.02] [%clk 0:24:11] } 23... Bg5 { [%eval 0.0] [%clk 0:43:36] } 24. Ra2 { [%eval 0.0] [%clk 0:24:29] } 24... Nd4 { [%eval 0.4] [%clk 0:41:44] } 25. Bxd4 { [%eval 0.36] [%clk 0:24:40] } 25... cxd4 { [%eval 0.3] [%clk 0:40:05] } 26. Rb2 { [%eval -0.04] [%clk 0:24:44] } 26... Bxd5 { [%eval 0.28] [%clk 0:37:42] } 27. exd5 { [%eval 0.86] [%clk 0:24:59] } 27... Qf6 { [%eval 0.45] [%clk 0:37:58] } 28. Re2 { [%eval 0.17] [%clk 0:20:48] } 28... Qf7?! { [%eval 0.95] } { Inaccuracy. h5 was best. } { [%clk 0:17:21] } 29. d6? { [%eval -0.62] } { Mistake. Qe1 was best. } { [%clk 0:11:16] } 29... Kh8?? { [%eval 1.2] } { Blunder. e4 was best. } { [%clk 0:15:23] } 30. Qe1 { [%eval 1.14] [%clk 0:10:42] } 30... Qf6 { [%eval 1.38] [%clk 0:14:28] } 31. c3 { [%eval 1.3] [%clk 0:09:57] } 31... Rbc8?? { [%eval 3.33] } { Blunder. dxc3 was best. } { [%clk 0:08:52] } 32. cxd4 { [%eval 3.29] [%clk 0:09:17] } 32... exd4 { [%eval 3.25] [%clk 0:09:09] } 33. Re7 { [%eval 2.79] [%clk 0:02:55] } 33... Nc5 { [%eval 2.61] [%clk 0:07:09] } 34. Qe5 { [%eval 2.35] [%clk 0:02:50] } 34... f3? { [%eval 4.42] } { Mistake. Qxe5 was best. } { [%clk 0:06:07] } 35. Qd5 { [%eval 4.41] [%clk 0:01:58] } 35... Qf5 { [%eval 4.53] [%clk 0:05:32] } 36. Re5 { [%eval 4.47] [%clk 0:00:55] } 36... Qf7 { [%eval 4.34] [%clk 0:04:20] } 37. Qxd4 { [%eval 4.44] [%clk 0:00:57] } 37... Bf6 { [%eval 4.22] [%clk 0:04:33] } 38. Qxg4 { [%eval 4.22] [%clk 0:00:44] } 38... Nxd3?! { [%eval 6.03] } { Inaccuracy. Qg7 was best. } { [%clk 0:03:42] } 39. Bxd3 { [%eval 5.59] [%clk 0:00:48] } 39... Bxe5 { [%eval 7.1] [%clk 0:03:46] } 40. Nxe5 { [%eval 7.41] [%clk 0:00:47] } 40... Rc1+ { [%eval 7.38] [%clk 0:04:08] } 41. Bf1 { [%eval 7.11] [%clk 0:01:11] } 41... Qf6 { [%eval 7.81] [%clk 0:03:47] } 42. Ng6+ { [%eval 8.04] [%clk 0:01:14] } 42... Kg8 { [%eval 8.13] [%clk 0:04:11] } 43. Nxf8+ { [%eval 7.87] [%clk 0:01:29] } 43... Kxf8 { [%eval 7.91] [%clk 0:04:37] } 44. Qf4?! { [%eval 5.51] } { Inaccuracy. d7 was best. } { [%clk 0:01:39] } 1-0