Event: Round 4: Sierra Isaza, Jose Eduardo - Almanza Montoya, Joseph
Date: 2025-03-24
White: Sierra Isaza, Jose Eduardo
WhiteElo: 1572
Black: Almanza Montoya, Joseph
BlackElo: 1683
Result: 0-1
ECO: A57
Opening: Benko Gambit Accepted: Pawn Return Variation
Variant: Standard
TimeControl: 4+2

1. d4 { [%eval 0.17] [%clk 0:03:33] } 1... Nf6 { [%eval 0.19] } 2. c4 { [%eval 0.18] [%clk 0:03:33] } 2... c5 { [%eval 0.56] } 3. d5 { [%eval 0.47] [%clk 0:03:34] } 3... b5 { [%eval 0.53] } 4. cxb5 { [%eval 0.47] } 4... a6 { [%eval 0.6] } 5. b6 { [%eval 0.15] } 5... Qxb6 { [%eval 0.47] } 6. Nc3 { [%eval 0.38] } 6... g6 { [%eval 0.59] } 7. e4 { [%eval 0.43] } 7... d6 { [%eval 0.46] } 8. Nf3 { [%eval 0.47] } 8... Bg7 { [%eval 0.46] } 9. Be2 { [%eval 0.49] } 9... O-O { [%eval 0.51] } 10. O-O { [%eval 0.41] } 10... a5 { [%eval 0.68] } 11. a4 { [%eval 0.4] } 11... Ba6 { [%eval 0.4] } 12. Rb1 { [%eval 0.3] } 12... Nbd7 { [%eval 0.49] } 13. Qc2?! { [%eval -0.36] } { Inaccuracy. Re1 was best. } 13... Qb4?! { [%eval 0.47] } { Inaccuracy. Bxe2 was best. } 14. Bxa6 { [%eval 0.48] } 14... Rxa6 { [%eval 0.51] } 15. Bd2 { [%eval 0.0] } 15... Rb8 { [%eval 0.28] } 16. Rfe1?! { [%eval -0.42] } { Inaccuracy. Qd3 was best. } 16... Qb3 { [%eval -0.61] } 17. Qxb3 { [%eval -0.55] } 17... Rxb3 { [%eval -0.47] } 18. Nb5? { [%eval -2.02] } { Mistake. e5 was best. } 18... Nb6 { [%eval -2.0] } 19. Bc3? { [%eval -4.12] } { Mistake. Nc7 was best. } 19... Nxa4 { [%eval -4.08] } 20. Ra1 { [%eval -4.36] [%clk 0:00:00] } 20... Nxb2 { [%eval -4.38] [%clk 0:00:00] } 21. Bxb2 { [%eval -4.72] [%clk 0:00:00] } 21... Rxb2 { [%eval -4.9] [%clk 0:00:00] } 22. Na3 { [%eval -5.06] [%clk 0:00:00] } 22... Rb4 { [%eval -5.02] [%clk 0:00:00] } 23. Nd2 { [%eval -6.15] [%clk 0:00:00] } 23... Nxe4 { [%eval -6.35] } 24. Nxe4 { [%eval -6.44] } 24... Bxa1 { [%eval -6.2] } 25. Nc2 { [%eval -6.19] [%clk 0:00:00] } 25... Rxe4 { [%eval -5.03] [%clk 0:00:00] } 26. Rxe4 { [%eval -4.94] [%clk 0:00:00] } 26... Bf6 { [%eval -4.9] [%clk 0:00:00] } 27. h3 { [%eval -5.78] } 27... a4 { [%eval -5.65] [%clk 0:00:00] } 28. Na3 { [%eval -5.81] [%clk 0:00:00] } 28... Bb2 { [%eval -5.82] [%clk 0:00:00] } 29. Re3 { [%eval -5.8] [%clk 0:00:00] } 29... Bd4 { [%eval -5.39] } 30. Rd3 { [%eval -5.82] [%clk 0:00:00] } 30... Rb6 { [%eval -5.73] [%clk 0:00:00] } 31. Nc4 { [%eval -6.21] } 31... Rb1+ { [%eval -6.42] } 32. Kh2 { [%eval -6.39] [%clk 0:00:00] } 32... Bxf2 { [%eval -6.19] [%clk 0:00:00] } 33. Rf3 { [%eval -6.58] } 33... Bd4 { [%eval -6.24] [%clk 0:00:00] } 34. Ra3 { [%eval -7.79] [%clk 0:00:00] } 34... Rb4 { [%eval -7.7] [%clk 0:00:00] } 35. Nd2 { [%eval -8.02] [%clk 0:00:00] } 35... Bb2 { [%eval -7.9] [%clk 0:00:00] } 36. Ra2 { [%eval -7.69] [%clk 0:00:00] } 0-1