Event: Round 6: De La Riva Aguado, Oscar - Efimov, Igor
Site: https://lichess.org/broadcast/9th-esna-chess-championship-2025/round-6/WbpFPNbG/Ce4sznYX
Date: 2025-11-19
White: De La Riva Aguado, Oscar
WhiteTitle: GM
WhiteElo: 2439
Black: Efimov, Igor
BlackTitle: GM
BlackElo: 2331
Result: 1/2-1/2
ECO: B33
Opening: Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:56] } 1... c5 { [%eval 0.25] [%clk 1:29:16] } 2. Nf3 { [%eval 0.2] [%clk 1:30:56] } 2... e6 { [%eval 0.28] [%clk 1:21:41] } 3. d4 { [%eval 0.4] [%clk 1:29:14] } 3... cxd4 { [%eval 0.29] [%clk 1:16:12] } 4. Nxd4 { [%eval 0.33] [%clk 1:29:22] } 4... Nf6 { [%eval 0.29] [%clk 1:15:56] } 5. Nc3 { [%eval 0.24] [%clk 1:27:10] } 5... Nc6 { [%eval 0.35] [%clk 1:03:29] } 6. Ndb5 { [%eval 0.25] [%clk 1:19:13] } 6... d6 { [%eval 0.28] [%clk 0:55:03] } 7. Bf4 { [%eval 0.29] [%clk 1:17:23] } 7... e5 { [%eval 0.31] [%clk 0:55:31] } 8. Bg5 { [%eval 0.2] [%clk 1:17:43] } 8... a6 { [%eval 0.3] [%clk 0:55:52] } 9. Na3 { [%eval 0.22] [%clk 1:17:57] } 9... b5 { [%eval 0.2] [%clk 0:56:20] } 10. Nd5 { [%eval 0.24] [%clk 1:16:01] } 10... Qa5+ { [%eval 0.76] [%clk 0:56:32] } 11. Bd2 { [%eval 0.75] [%clk 1:13:51] } 11... Qd8 { [%eval 0.79] [%clk 0:56:59] } 12. Bg5 { [%eval 0.27] [%clk 1:06:34] } 12... Qa5+ { [%eval 0.75] [%clk 0:52:33] } 13. Bd2 { [%eval 0.78] [%clk 1:06:46] } 13... Qd8 { [%eval 0.71] [%clk 0:52:59] } 14. Bg5?! { [%eval 0.0] } { Inaccuracy. Bd3 was best. } 1/2-1/2