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- E20-E59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 Nimzo-Indian defence, E54 - 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 - Nimzo-Indian, E54h - 8.Bxc4 cxd4 9.exd4 b6 - Main Line, Karpov Variation (1939), SÉRIE E
Sinquefield Cup 2025 – Round 1 – Samuel Sevian – 1/2-1/2 – So Wesley – G1
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- C70 - 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 - Spanish, C70-C79 Ruy Lopez1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 ....., C70m - 4…b5 5.Bb3 Na5 - Ruy Lopez: Morphy Defense, Norwegian Variation (1927), SÉRIE C
Sinquefield Cup 2025 – Round 1 – Vachier-Lagrave Maxime – 1/2-1/2 – Firouzja Alireza – G2
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- C80-C89 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 & C84-C89 C84 5. O-O Be7 Ruy Lopez, closed defence, C82 - 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 - Ruy Lopez: Open, C82o - 9…Bc5 10.Nbd2 O-O 11.Bc2 Nxf2 - Open, Dilworth Variation (1947), SÉRIE C
Sinquefield Cup 2025 – Round 2 – Firouzja Alireza – 1-0 – Duda Jan-Krzysztof – G9
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- C80 - 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 - Ruy Lopez: Open, C80-C89 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 & C84-C89 C84 5. O-O Be7 Ruy Lopez, closed defence, C80s - 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.Nbd2 Nc5 10.c3 d4 - Open, Bernstein (2025), SÉRIE C
Sinquefield Cup 2025 – Round 2 – Gukesh D – 1-0 – Abdusattorov Nodirbek – G10
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- B20-B99 1. e4 c5 - Sicilian Defense, B30-B39 1.e4 c5 2. Nf3 Nc6 Sicilian defence, B31 - 1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 - Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, B31k - 4.O-O Bg7 5.Re1 Nf6 - Rossolimo (1948), SÉRIE B 1.e4 2....
Sinquefield Cup 2025 – Round 2 – Praggnanandhaa R – 1/2-1/2 – Caruana Fabiano – G6
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