Event: Ronda 4: Pumachaico Valdiviezo, Piero Alonso - Fernandez Sanchez, Fernando Miguel
Date: 2025-06-28
White: Pumachaico Valdiviezo, Piero Alonso
WhiteElo: 1929
Black: Fernandez Sanchez, Fernando Miguel
BlackTitle: IM
BlackElo: 2376
Result: 0-1
ECO: A58
Opening: Benko Gambit Accepted: Fully Accepted Variation
Variant: Standard
TimeControl: 60+30

1. d4 { [%eval 0.17] [%clk 0:59:43] } 1... Nf6 { [%eval 0.19] [%clk 0:40:36] } 2. c4 { [%eval 0.18] [%clk 1:00:08] } 2... c5 { [%eval 0.56] [%clk 0:40:47] } 3. d5 { [%eval 0.47] [%clk 1:00:32] } 3... b5 { [%eval 0.47] [%clk 0:41:13] } 4. cxb5 { [%eval 0.47] [%clk 1:00:59] } 4... a6 { [%eval 0.6] [%clk 0:41:35] } 5. bxa6 { [%eval 0.52] [%clk 1:01:24] } 5... e6 { [%eval 0.58] [%clk 0:41:42] } 6. Nc3 { [%eval 0.58] [%clk 1:01:08] } 6... exd5 { [%eval 0.53] [%clk 0:42:09] } 7. Nxd5 { [%eval 0.5] [%clk 1:01:33] } 7... Be7 { [%eval 0.49] [%clk 0:42:32] } 8. Bf4 { [%eval 0.05] [%clk 0:59:44] } 8... Nxd5 { [%eval 0.08] [%clk 0:42:22] } 9. Qxd5 { [%eval 0.07] [%clk 1:00:08] } 9... Nc6 { [%eval 0.02] [%clk 0:42:02] } 10. e3 { [%eval -0.25] [%clk 0:55:09] } 10... O-O { [%eval 0.12] [%clk 0:42:17] } 11. Nf3 { [%eval -0.07] [%clk 0:55:23] } 11... Rxa6 { [%eval 0.1] [%clk 0:42:22] } 12. Bxa6?? { [%eval -2.15] } { Blunder. Be2 was best. } { [%clk 0:54:06] } 12... Bxa6 { [%eval -1.81] [%clk 0:37:36] } 13. O-O-O { [%eval -2.11] [%clk 0:44:06] } 13... Qb6?? { [%eval -0.17] } { Blunder. Nb4 was best. } { [%clk 0:36:40] } 14. Qb3?? { [%eval -2.09] } { Blunder. a3 was best. } { [%clk 0:44:09] } 14... Nb4 { [%eval -2.09] [%clk 0:36:16] } 15. Rxd7 { [%eval -2.2] [%clk 0:24:09] } 15... c4 { [%eval -2.1] [%clk 0:33:28] } 16. Qa4?! { [%eval -3.42] } { Inaccuracy. Qa3 was best. } { [%clk 0:24:26] } 16... Bb5 { [%eval -3.51] [%clk 0:16:40] } 17. Qa7 { [%eval -3.56] [%clk 0:24:50] } 17... Qg6 { [%eval -3.34] [%clk 0:16:27] } 18. Ne1? { [%eval -6.19] } { Mistake. Rd2 was best. } { [%clk 0:25:18] } 18... Bxd7 { [%eval -6.02] [%clk 0:16:11] } 19. Qxd7 { [%eval -6.51] [%clk 0:25:33] } 19... Nxa2+ { [%eval -6.52] [%clk 0:16:38] } 20. Kd2 { [%eval -6.3] [%clk 0:25:47] } 20... Rd8 { [%eval -6.55] [%clk 0:16:49] } 21. Qxd8+ { [%eval -6.51] [%clk 0:26:13] } 21... Bxd8 { [%eval -6.49] [%clk 0:17:14] } 22. Bg3 { [%eval -7.61] [%clk 0:25:08] } 22... Qb1 { [%eval -7.35] [%clk 0:17:04] } 0-1