Event: Ronda 4: Coto Calderon, Juan Diego - Valverde Mora, Mauricio
Date: 2025-05-17
White: Coto Calderon, Juan Diego
WhiteElo: 1795
Black: Valverde Mora, Mauricio
BlackElo: 1855
Result: 0-1
ECO: D85
Opening: Grünfeld Defense: Exchange Variation
Variant: Standard
TimeControl: 15+10

1. d4 { [%eval 0.17] [%clk 0:15:11] } 1... Nf6 { [%eval 0.19] [%clk 0:15:17] } 2. c4 { [%eval 0.18] [%clk 0:15:20] } 2... g6 { [%eval 0.28] [%clk 0:15:26] } 3. Nc3 { [%eval 0.18] [%clk 0:15:28] } 3... d5 { [%eval 0.28] [%clk 0:15:35] } 4. cxd5 { [%eval 0.21] [%clk 0:15:37] } 4... Nxd5 { [%eval 0.17] [%clk 0:15:43] } 5. e3 { [%eval 0.17] [%clk 0:15:46] } 5... Bg7 { [%eval 0.12] [%clk 0:15:30] } 6. Bc4 { [%eval 0.11] [%clk 0:15:53] } 6... Nb6 { [%eval 0.16] [%clk 0:15:39] } 7. Bb3 { [%eval 0.12] [%clk 0:15:57] } 7... O-O { [%eval 0.13] [%clk 0:15:40] } 8. Nf3 { [%eval 0.19] [%clk 0:16:05] } 8... N8d7?! { [%eval 0.78] } { Inaccuracy. c5 was best. } { [%clk 0:15:43] } 9. O-O { [%eval 0.6] [%clk 0:16:06] } 9... c5 { [%eval 0.62] [%clk 0:15:52] } 10. Qe2 { [%eval 0.26] [%clk 0:15:55] } 10... cxd4 { [%eval 0.29] [%clk 0:15:30] } 11. exd4 { [%eval 0.22] [%clk 0:15:35] } 11... Nf6 { [%eval 0.32] [%clk 0:15:37] } 12. Re1 { [%eval 0.26] [%clk 0:15:26] } 12... e6 { [%eval 0.57] [%clk 0:14:43] } 13. Bg5 { [%eval 0.58] [%clk 0:14:52] } 13... h6 { [%eval 0.54] [%clk 0:14:52] } 14. Bh4 { [%eval 0.48] [%clk 0:14:58] } 14... g5?! { [%eval 1.46] } { Inaccuracy. a5 was best. } { [%clk 0:14:57] } 15. Bg3 { [%eval 1.36] [%clk 0:15:07] } 15... Nbd5 { [%eval 1.72] [%clk 0:15:06] } 16. h3?! { [%eval 1.09] } { Inaccuracy. Rad1 was best. } { [%clk 0:14:10] } 16... b6 { [%eval 1.24] [%clk 0:15:05] } 17. Nb5?! { [%eval 0.48] } { Inaccuracy. h4 was best. } { [%clk 0:14:01] } 17... Ba6 { [%eval 0.56] [%clk 0:13:44] } 18. Bc4?! { [%eval -0.11] } { Inaccuracy. Ne5 was best. } { [%clk 0:13:52] } 18... Nh5 { [%eval -0.05] [%clk 0:12:01] } 19. Be5 { [%eval -0.14] [%clk 0:13:27] } 19... Nhf4 { [%eval -0.09] [%clk 0:11:52] } 20. Qe4?! { [%eval -0.88] } { Inaccuracy. Qd2 was best. } { [%clk 0:12:56] } 20... Rc8?! { [%eval -0.29] } { Inaccuracy. f5 was best. } { [%clk 0:11:19] } 21. Bxg7 { [%eval -0.33] [%clk 0:12:26] } 21... Kxg7 { [%eval -0.27] [%clk 0:11:11] } 22. Bf1 { [%eval -0.3] [%clk 0:11:24] } 22... Nf6 { [%eval -0.28] [%clk 0:10:17] } 23. Rac1?? { [%eval -6.31] } { Blunder. Qe3 was best. } { [%clk 0:10:11] } 23... Nxe4 { [%clk 0:10:07] } 0-1