Event: Round 4: Mena Cordoba, Yamil Octavio - Obando Guzman, Soren Federico
Date: 2025-06-08
White: Mena Cordoba, Yamil Octavio
WhiteTitle: CM
WhiteElo: 1989
Black: Obando Guzman, Soren Federico
BlackElo: 2187
Result: 1-0
ECO: B90
Opening: Sicilian Defense: Najdorf Variation, Lipnitsky Attack
Variant: Standard
TimeControl: 15+10

1. e4 { [%eval 0.18] [%clk 0:15:05] } 1... c5 { [%eval 0.25] [%clk 0:14:18] } 2. Nf3 { [%eval 0.2] [%clk 0:15:28] } 2... d6 { [%eval 0.31] [%clk 0:14:27] } 3. d4 { [%eval 0.22] [%clk 0:15:36] } 3... cxd4 { [%eval 0.19] [%clk 0:14:35] } 4. Nxd4 { [%eval 0.18] [%clk 0:15:46] } 4... Nf6 { [%eval 0.31] [%clk 0:14:44] } 5. Nc3 { [%eval 0.32] [%clk 0:15:55] } 5... a6 { [%eval 0.28] [%clk 0:14:53] } 6. Bc4 { [%eval 0.07] [%clk 0:16:01] } 6... e6 { [%eval 0.06] [%clk 0:15:01] } 7. Bb3 { [%eval 0.0] [%clk 0:16:10] } 7... Nbd7 { [%eval 0.05] [%clk 0:15:09] } 8. Qe2 { [%eval -0.08] [%clk 0:15:09] } 8... Nc5 { [%eval -0.15] [%clk 0:15:12] } 9. Bg5 { [%eval -0.1] [%clk 0:15:12] } 9... Be7 { [%eval -0.23] [%clk 0:15:19] } 10. Bxf6?! { [%eval -1.23] } { Inaccuracy. O-O-O was best. } { [%clk 0:14:25] } 10... Bxf6 { [%eval -1.22] [%clk 0:15:26] } 11. O-O-O { [%eval -1.15] [%clk 0:14:33] } 11... Qc7 { [%eval -1.37] [%clk 0:15:05] } 12. f4 { [%eval -1.37] [%clk 0:14:38] } 12... O-O { [%eval -1.48] [%clk 0:14:58] } 13. g4 { [%eval -1.38] [%clk 0:14:29] } 13... b5 { [%eval -1.31] [%clk 0:14:06] } 14. g5 { [%eval -1.41] [%clk 0:14:20] } 14... Be7?! { [%eval -0.59] } { Inaccuracy. Bxd4 was best. } { [%clk 0:14:15] } 15. h4? { [%eval -2.04] } { Mistake. a3 was best. } { [%clk 0:14:18] } 15... Bb7?? { [%eval -0.06] } { Blunder. b4 was best. } { [%clk 0:14:20] } 16. a3 { [%eval -0.04] [%clk 0:14:19] } 16... d5 { [%eval -0.09] [%clk 0:13:31] } 17. e5 { [%eval 0.0] [%clk 0:14:00] } 17... b4 { [%eval 0.0] [%clk 0:13:24] } 18. axb4 { [%eval -0.17] [%clk 0:13:54] } 18... Nxb3+ { [%eval -0.03] [%clk 0:13:31] } 19. cxb3 { [%eval 0.4] [%clk 0:13:34] } 19... Bxb4 { [%eval 0.34] [%clk 0:13:35] } 20. Rh3 { [%eval -0.09] [%clk 0:13:38] } 20... Bc5 { [%eval 0.26] [%clk 0:11:54] } 21. h5 { [%eval -0.09] [%clk 0:13:19] } 21... Bxd4 { [%eval 0.12] [%clk 0:10:32] } 22. Rxd4 { [%eval 0.21] [%clk 0:13:28] } 22... Rab8 { [%eval 0.18] [%clk 0:10:41] } 23. Kb1 { [%eval 0.2] [%clk 0:12:25] } 23... Bc6 { [%eval 0.54] [%clk 0:10:43] } 24. b4?! { [%eval -0.02] } { Inaccuracy. Nd1 was best. } { [%clk 0:12:26] } 24... Bb5 { [%eval -0.08] [%clk 0:10:48] } 25. Qg4?? { [%eval -1.92] } { Blunder. Nxb5 was best. } { [%clk 0:12:07] } 25... Bc4 { [%eval -1.93] [%clk 0:09:42] } 26. g6 { [%eval -2.29] [%clk 0:12:08] } 26... f5?? { [%eval -0.08] } { Blunder. h6 was best. } { [%clk 0:08:43] } 27. gxh7+ { [%eval 0.0] [%clk 0:11:38] } 27... Kh8 { [%eval 0.0] [%clk 0:08:38] } 28. Qg6 { [%eval 0.0] [%clk 0:11:44] } 28... Rxb4 { [%eval 0.0] [%clk 0:08:22] } 29. h6 { [%eval 0.0] [%clk 0:11:43] } 29... Ba2+?? { [%eval 5.8] } { Blunder. Qf7 was best. } { [%clk 0:08:18] } 30. Kxa2 { [%eval 5.58] [%clk 0:11:12] } 30... Rxd4?? { [%eval #9] } { Checkmate is now unavoidable. Rb7 was best. } { [%clk 0:07:59] } 31. Rg3 { [%eval #8] [%clk 0:11:05] } 31... Qc4+ { [%eval #8] [%clk 0:07:21] } 32. b3 { [%eval #7] [%clk 0:10:26] } 32... Rd2+ { [%eval #7] [%clk 0:06:26] } 33. Ka3 { [%eval #6] [%clk 0:09:54] } 33... Qc5+ { [%eval #6] [%clk 0:05:24] } 34. b4 { [%eval #5] [%clk 0:10:02] } 1-0