Event: Ronda 4: Calderon Sanchez, Mariano - Guevara Mata, Carlos
Date: 2025-02-22
White: Calderon Sanchez, Mariano
Black: Guevara Mata, Carlos
Result: 0-1
ECO: C20
Opening: Portuguese Opening
Variant: Standard
TimeControl: 10+5

1. e4 { [%eval 0.18] [%clk 0:10:08] } 1... e5 { [%eval 0.21] [%clk 0:10:09] } 2. Bb5 { [%eval -0.21] [%clk 0:10:11] } 2... a6 { [%eval 0.13] [%clk 0:10:08] } 3. Bc4 { [%eval 0.0] [%clk 0:10:14] } 3... b5 { [%eval 0.3] [%clk 0:10:11] } 4. Be2 { [%eval -0.14] [%clk 0:10:16] } 4... d5 { [%eval 0.28] [%clk 0:10:10] } 5. exd5 { [%eval 0.29] [%clk 0:10:11] } 5... Bb4 { [%eval 0.68] [%clk 0:10:02] } 6. Nf3 { [%eval 0.2] [%clk 0:10:07] } 6... f6?? { [%eval 1.96] } { Blunder. e4 was best. } { [%clk 0:10:04] } 7. c3 { [%eval 1.79] [%clk 0:10:07] } 7... Bf8 { [%eval 2.35] [%clk 0:10:06] } 8. Na3? { [%eval 0.75] } { Mistake. O-O was best. } { [%clk 0:10:09] } 8... Nh6? { [%eval 1.97] } { Mistake. Bxa3 was best. } { [%clk 0:10:00] } 9. O-O { [%eval 1.75] [%clk 0:10:04] } 9... Nf5?! { [%eval 2.38] } { Inaccuracy. Bxa3 was best. } { [%clk 0:10:01] } 10. Bd3? { [%eval 0.88] } { Mistake. Nc2 was best. } { [%clk 0:10:00] } 10... a5?? { [%eval 3.37] } { Blunder. Bxa3 was best. } { [%clk 0:09:57] } 11. Nxb5 { [%eval 3.31] [%clk 0:09:59] } 11... a4 { [%eval 3.61] [%clk 0:09:58] } 12. Bxf5 { [%eval 3.64] [%clk 0:09:54] } 12... Bxf5 { [%eval 3.51] [%clk 0:09:54] } 13. Re1 { [%eval 2.99] [%clk 0:09:40] } 13... Bg4?! { [%eval 3.98] } { Inaccuracy. Qd7 was best. } { [%clk 0:09:55] } 14. b3?! { [%eval 2.69] } { Inaccuracy. h3 was best. } { [%clk 0:09:27] } 14... axb3 { [%eval 3.17] [%clk 0:09:51] } 15. Qxb3 { [%eval 2.92] [%clk 0:09:15] } 15... Na6? { [%eval 4.72] } { Mistake. Bxf3 was best. } { [%clk 0:09:51] } 16. Re4?? { [%eval -0.24] } { Blunder. Nxe5 was best. } { [%clk 0:09:04] } 16... Bd7?? { [%eval 3.82] } { Blunder. Nc5 was best. } { [%clk 0:09:44] } 17. d4 { [%eval 3.78] [%clk 0:09:01] } 17... Nb4?! { [%eval 5.83] } { Inaccuracy. Bd6 was best. } { [%clk 0:09:43] } 18. cxb4 { [%eval 5.58] [%clk 0:08:53] } 18... Bxb5 { [%eval 5.81] [%clk 0:09:36] } 19. dxe5 { [%eval 5.92] [%clk 0:08:52] } 19... Be7 { [%eval 6.4] [%clk 0:09:16] } 20. d6 { [%eval 6.19] [%clk 0:08:46] } 20... Bf8?? { [%eval #20] } { Checkmate is now unavoidable. Ba4 was best. } { [%clk 0:09:10] } 21. e6?? { [%eval 4.72] } { Lost forced checkmate sequence. exf6+ was best. } { [%clk 0:08:32] } 21... Bxd6 { [%eval 4.44] [%clk 0:09:10] } 22. e7 { [%eval 4.06] [%clk 0:08:07] } 22... Bxe7 { [%eval 4.59] [%clk 0:09:13] } 23. Rxe7+?? { [%eval 0.0] } { Blunder. Bf4 was best. } { [%clk 0:08:08] } 23... Qxe7 { [%eval 0.0] [%clk 0:09:16] } 24. Bb2 { [%eval -0.07] [%clk 0:07:56] } 24... Ra6?? { [%eval 4.96] } { Blunder. Qf7 was best. } { [%clk 0:09:15] } 25. Re1 { [%eval 4.87] [%clk 0:07:56] } 25... Re6?! { [%eval 7.0] } { Inaccuracy. Qxe1+ was best. } { [%clk 0:09:11] } 26. Rxe6 { [%eval 6.96] [%clk 0:07:46] } 26... Qxe6 { [%eval 9.46] [%clk 0:08:52] } 27. Qxe6+ { [%eval 8.3] [%clk 0:07:45] } 27... Kf8? { [%eval #4] } { Checkmate is now unavoidable. Kd8 was best. } { [%clk 0:08:37] } 28. Bd4 { [%eval #3] [%clk 0:07:25] } 28... Bc4 { [%eval #1] [%clk 0:07:57] } 29. Qxc4 { [%eval #8] [%clk 0:07:17] } 29... Ke7 { [%eval #8] [%clk 0:08:01] } 30. Bc5+ { [%eval #7] [%clk 0:07:19] } 30... Kd7 { [%eval #6] [%clk 0:08:00] } 31. Qg4+ { [%eval #7] [%clk 0:07:13] } 31... Kc6 { [%eval #6] [%clk 0:08:01] } 32. Qd4 { [%eval #8] [%clk 0:07:04] } 32... Re8 { [%eval #8] [%clk 0:08:00] } 33. Qc4 { [%eval 11.31] [%clk 0:06:45] } 33... g5?! { [%eval #6] } { Checkmate is now unavoidable. Kd7 was best. } { [%clk 0:07:55] } 34. b5+ { [%eval #10] [%clk 0:06:38] } 34... Kb7 { [%eval #10] [%clk 0:07:21] } 35. Qd5+ { [%eval #9] [%clk 0:06:30] } 35... Kc8 { [%eval #9] [%clk 0:07:18] } 36. Qa8+ { [%eval #9] [%clk 0:06:28] } 36... Kd7 { [%eval #10] [%clk 0:07:19] } 37. Qc6+ { [%eval #9] [%clk 0:06:27] } 37... Kc8 { [%eval #4] [%clk 0:07:18] } 38. b6 { [%eval #3] [%clk 0:06:27] } 38... g4 { [%eval #1] [%clk 0:07:20] } 39. Ne1 { [%clk 0:06:16] } 39... Rxe1# { [%clk 0:07:22] } 0-1