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- B20-B99 1. e4 c5 - Sicilian Defense, B50-B59 Sicilian 1. e4 c5 2. Nf3 d6, B53 - 1.e4 c5 2.Nf3 d6 3.d4 - Sicilian [+0.25], B53l - 3…cxd4 4.Qxd4 Nc6 - Chekhover [+0.10], SÉRIE B 1.e4 2....
41. Olympiad Open 2014 – Round 10.25 – Svetushkin, Dmitry – 1/2-1/2 – Delgado Ramirez, Neuris – G715
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- B20-B99 1. e4 c5 - Sicilian Defense, B50-B59 Sicilian 1. e4 c5 2. Nf3 d6, B53 - 1.e4 c5 2.Nf3 d6 3.d4 - Sicilian [+0.25], B53n - 3…cxd4 4.Qxd4 Nc6 5.Bb5 Bd7 - Chekhover [+0.02], SÉRIE B 1.e4 2....
41. Olympiad Open 2014 – Round 7.2 – Nepomniachtchi, Ian – 1/2-1/2 – Babula, Vlastimil – G494
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- B20-B99 1. e4 c5 - Sicilian Defense, B50-B59 Sicilian 1. e4 c5 2. Nf3 d6, B53 - 1.e4 c5 2.Nf3 d6 3.d4 - Sicilian [+0.25], B53q - 3…cxd4 4.Qxd4 Nc6 5.Bb5 Bd7 6.Bxc6 Bxc6 7.c4 Nf6 8.Nc3 g6 - Chekhover [+0.03], SÉRIE B 1.e4 2....
41. Olympiad Open 2014 – Round 8.11 – Megaranto, Susanto – 1/2-1/2 – Gelfand, Boris – G544
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- B20-B99 1. e4 c5 - Sicilian Defense, B50-B59 Sicilian 1. e4 c5 2. Nf3 d6, B53 - 1.e4 c5 2.Nf3 d6 3.d4 - Sicilian [+0.25], B53t - 3…cxd4 4.Qxd4 Nc6 5.Bb5 Bd7 6.Bxc6 Bxc6 7.Nc3 Nf6 8.Bg5 e6 - Chekhover [-0.16], SÉRIE B 1.e4 2....
42. Olympiad 2016 – Round 4.18 – Balogh Urbina, Carlos Alfonso – 1-0 – Alfaro, William – G263
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- B20-B99 1. e4 c5 - Sicilian Defense, B50-B59 Sicilian 1. e4 c5 2. Nf3 d6, B53 - 1.e4 c5 2.Nf3 d6 3.d4 - Sicilian [+0.25], B53u - 3…cxd4 4.Qxd4 Nc6 5.Bb5 Bd7 6.Bxc6 Bxc6 7.Nc3 Nf6 8.Bg5 e6 9.O-O-O Be7 10.Qd3 - Chekhover Main Line [-0.22], SÉRIE B 1.e4 2....
42. Olympiad 2016 – Round 9.18 – Foo, Zhi Rong Benjamin – 0-1 – Swiercz, Dariusz – G623
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