Event: Round 6: Mena Cordoba, Yamil Octavio - Rivera, Alberto
Date: 2025-04-27
White: Mena Cordoba, Yamil Octavio
WhiteTitle: CM
WhiteElo: 1968
Black: Rivera, Alberto
BlackTitle: IM
BlackElo: 2253
Result: 0-1
ECO: B98
Opening: Sicilian Defense: Najdorf Variation
Variant: Standard
TimeControl: 15+10

1. e4 { [%eval 0.18] [%clk 0:15:19] } 1... c5 { [%eval 0.25] [%clk 0:14:58] } 2. Nf3 { [%eval 0.2] [%clk 0:15:27] } 2... d6 { [%eval 0.31] [%clk 0:15:07] } 3. d4 { [%eval 0.22] [%clk 0:15:35] } 3... cxd4 { [%eval 0.19] [%clk 0:15:16] } 4. Nxd4 { [%eval 0.18] [%clk 0:15:45] } 4... Nf6 { [%eval 0.25] [%clk 0:15:25] } 5. Nc3 { [%eval 0.32] [%clk 0:15:54] } 5... a6 { [%eval 0.23] [%clk 0:15:34] } 6. Bg5 { [%eval 0.0] [%clk 0:16:02] } 6... e6 { [%eval 0.17] [%clk 0:15:43] } 7. f4 { [%eval 0.05] [%clk 0:16:11] } 7... Be7 { [%eval 0.4] [%clk 0:15:53] } 8. Qe2?! { [%eval -0.15] } { Inaccuracy. Qf3 was best. } { [%clk 0:16:19] } 8... Nbd7?! { [%eval 0.83] } { Inaccuracy. b5 was best. } { [%clk 0:15:55] } 9. O-O-O { [%eval 0.73] [%clk 0:16:26] } 9... Qc7 { [%eval 0.77] [%clk 0:16:05] } 10. g4 { [%eval 0.85] [%clk 0:16:21] } 10... b5 { [%eval 0.54] [%clk 0:16:14] } 11. Bxf6 { [%eval 0.61] [%clk 0:16:27] } 11... Nxf6 { [%eval 0.65] [%clk 0:16:23] } 12. g5 { [%eval 0.71] [%clk 0:16:35] } 12... Nd7 { [%eval 0.75] [%clk 0:16:31] } 13. a3 { [%eval 0.66] [%clk 0:16:24] } 13... Bb7?! { [%eval 1.36] } { Inaccuracy. Rb8 was best. } { [%clk 0:16:36] } 14. Bg2?! { [%eval 0.64] } { Inaccuracy. h4 was best. } { [%clk 0:16:29] } 14... g6?! { [%eval 1.44] } { Inaccuracy. Qc4 was best. } { [%clk 0:16:05] } 15. h4 { [%eval 1.49] [%clk 0:16:37] } 15... e5 { [%eval 1.42] [%clk 0:16:14] } 16. Nb3?! { [%eval 0.67] } { Inaccuracy. fxe5 was best. } { [%clk 0:15:50] } 16... exf4 { [%eval 0.81] [%clk 0:16:08] } 17. Rhf1?! { [%eval -0.01] } { Inaccuracy. e5 was best. } { [%clk 0:15:55] } 17... Ne5 { [%eval -0.02] [%clk 0:16:14] } 18. Rxf4 { [%eval 0.0] [%clk 0:15:53] } 18... h6 { [%eval 0.02] [%clk 0:14:31] } 19. gxh6 { [%eval 0.11] [%clk 0:14:08] } 19... Rxh6 { [%eval 0.08] [%clk 0:14:40] } 20. Qf2 { [%eval 0.0] [%clk 0:14:17] } 20... O-O-O { [%eval 0.33] [%clk 0:13:49] } 21. Kb1 { [%eval 0.56] [%clk 0:14:20] } 21... Kb8?! { [%eval 1.37] } { Inaccuracy. Rdh8 was best. } { [%clk 0:13:57] } 22. Nd5 { [%eval 1.3] [%clk 0:14:12] } 22... Bxd5 { [%eval 1.23] [%clk 0:14:06] } 23. exd5 { [%eval 1.43] [%clk 0:14:14] } 23... Rdh8 { [%eval 1.52] [%clk 0:14:07] } 24. Rxf7? { [%eval 0.0] } { Mistake. Nd4 was best. } { [%clk 0:13:48] } 24... Rxh4?? { [%eval 3.53] } { Blunder. Nxf7 was best. } { [%clk 0:06:39] } 25. Rf4?? { [%eval 0.58] } { Blunder. Rxe7 was best. } { [%clk 0:13:06] } 25... Rxf4 { [%eval 0.95] [%clk 0:05:48] } 26. Qxf4 { [%eval 1.01] [%clk 0:13:14] } 26... Qc4 { [%eval 1.17] [%clk 0:04:57] } 27. Rd4? { [%eval 0.03] } { Mistake. Nd4 was best. } { [%clk 0:12:58] } 27... Qe2 { [%eval 0.09] [%clk 0:04:27] } 28. Rd2 { [%eval -0.27] [%clk 0:12:48] } 28... Qe1+ { [%eval -0.26] [%clk 0:04:24] } 29. Ka2 { [%eval -0.23] [%clk 0:12:46] } 29... Rh4 { [%eval -0.2] [%clk 0:03:37] } 30. Qf1 { [%eval -0.22] [%clk 0:11:34] } 30... Qxf1 { [%eval -0.26] [%clk 0:03:24] } 31. Bxf1 { [%eval -0.31] [%clk 0:11:43] } 31... Kc7 { [%eval -0.13] [%clk 0:03:01] } 32. Nd4 { [%eval -0.18] [%clk 0:11:46] } 32... Kb6 { [%eval -0.13] [%clk 0:03:04] } 33. Ne6 { [%eval -0.11] [%clk 0:11:54] } 33... g5 { [%eval -0.08] [%clk 0:02:53] } 34. Rg2 { [%eval -0.1] [%clk 0:11:49] } 34... Rh1 { [%eval -0.11] [%clk 0:02:31] } 35. Be2 { [%eval -0.09] [%clk 0:11:56] } 35... Re1 { [%eval 0.0] [%clk 0:02:31] } 36. b3?? { [%eval -1.85] } { Blunder. c3 was best. } { [%clk 0:11:55] } 36... a5? { [%eval -0.37] } { Mistake. Bf6 was best. } { [%clk 0:02:17] } 37. c3 { [%eval -0.31] [%clk 0:10:48] } 37... b4 { [%eval -0.03] [%clk 0:02:21] } 38. axb4 { [%eval -0.04] [%clk 0:10:47] } 38... axb4 { [%eval -0.1] [%clk 0:02:30] } 39. cxb4?? { [%eval -5.02] } { Blunder. Kb2 was best. } { [%clk 0:10:43] } 39... Bf6 { [%eval -3.63] [%clk 0:02:38] } 40. b5? { [%eval -6.64] } { Mistake. Nf8 was best. } { [%clk 0:09:57] } 40... Nd3 { [%eval -9.18] [%clk 0:02:26] } 41. b4 { [%eval -7.64] [%clk 0:09:45] } 41... Rxe2+ { [%eval -7.61] [%clk 0:02:13] } 42. Rxe2 { [%eval -12.15] [%clk 0:09:53] } 42... Nc1+ { [%eval -8.79] [%clk 0:02:22] } 43. Ka3 { [%eval -10.96] [%clk 0:08:04] } 43... Nxe2 { [%eval -9.25] [%clk 0:02:29] } 44. Ka4? { [%eval #-19] } { Checkmate is now unavoidable. Kb3 was best. } { [%clk 0:08:09] } 44... g4 { [%eval #-13] [%clk 0:02:34] } 45. Nf8 { [%eval #-11] [%clk 0:08:18] } 45... Kb7 { [%eval #-12] [%clk 0:02:16] } 46. Ne6 { [%eval #-10] [%clk 0:06:44] } 46... g3 { [%eval #-9] [%clk 0:02:12] } 47. Nc5+ { [%eval #-9] [%clk 0:06:54] } 47... dxc5 { [%eval #-8] [%clk 0:02:06] } 48. bxc5 { [%eval #-8] [%clk 0:07:03] } 48... g2 { [%eval #-7] [%clk 0:02:04] } 49. d6 { [%eval #-5] [%clk 0:07:12] } 49... g1=Q { [%eval #-4] [%clk 0:02:05] } 50. c6+ { [%eval #-4] [%clk 0:07:22] } 50... Kb6 { [%eval #-3] [%clk 0:02:14] } 51. c7 { [%eval #-3] [%clk 0:07:30] } 51... Qd1+ { [%eval #-3] [%clk 0:01:50] } 0-1