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- C90-C99 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 Ruy Lopez, closed, C90a - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O - Ruy Lopez: Closed, C90e - 9.d3 (not 9...h6), SÉRIE C
World Rapid 2021 – Round 12.52 – Pichot, Alan – 1/2-1/2 – Harikrishna, Pentala – G723

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- 6.Nxc6 bxc6, B20 - B99 - 1. e4 c5 - Sicilian Defense, B40 - B49 1. e4 c5 2. Nf3 e6 Sicilian defence, B45 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense, B45a - Taimanov, 5.Nc3, B45d - Taimanov, Four Knights, B45n - Taimanov, Four Knights, 6.Nxc6 bxc6 7.e5 Nd5 8.Ne4 Qc7, SÉRIE B 1.e4 2....
World Rapid 2021 – Round 12.53 – Sjugirov, Sanan – 1-0 – Bellahcene, Bilel – G724

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- 6.O-O O-O — Main Line, E01-E09 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Catalan, closed, E05a - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7 - Catalan Opening: Open Defense, Classical Line, E05m - 7.Qc2 a6 8.a4 Bd7 9.Qxc4 Bc6, SÉRIE E
World Rapid 2021 – Round 12.6 – Fedoseev, Vladimir – 1/2-1/2 – Karjakin, Sergey – G727

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- D70-D79 1. d4 Nf6 2. c4 g6 3. f3 d5 Neo-Gruenfeld defence, D77a - 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 - Neo-Grünfeld Defense: Classical Variation, D77f - 6...dxc4 7.Na3 (not 7...Na6), SÉRIE D
World Rapid 2021 – Round 12.61 – Mikhalevski, Victor – 0-1 – Oparin, Grigoriy – G728

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- 9.f3 Be7, B20 - B99 - 1. e4 c5 - Sicilian Defense, B60-B69 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Sicilian, Richter-Rauzer, B67 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense, B67a - Richter-Rauzer, 7…a6 8.O-O-O Bd7, B67f - Richter-Rauzer, 7…a6, 9.f3 Be7 10.h4, SÉRIE B 1.e4 2....
World Rapid 2021 – Round 12.62 – Smirin, Ilia – 1-0 – Nevednichy, Vladislav – G729

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- B20 - B99 - 1. e4 c5 - Sicilian Defense, B60 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense, B60-B69 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Sicilian, Richter-Rauzer, B60a - Richter-Rauzer, B60b - Richter-Rauzer, Bondarevsky Variation, SÉRIE B 1.e4 2....
World Rapid 2021 – Round 12.7 – Firouzja, Alireza – 1/2-1/2 – Dubov, Daniil – G734

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