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- 5.Bf4 O-O, 6.e3 c5 7.dxc5 Bxc5 8.cxd5, D30-D39 1. d4 d5 2. c4 e6 Queen's gambit declined, D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 - Queen's Gambit Declined: Three Knights Variation, D37 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 - Queen's Gambit Declined: Barmen Variation, SÉRIE D
Saint Louis Rapid 2018 – Round 3.4 – Grischuk, Alexander – 1/2-1/2 – Nakamura, Hikaru – G14

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- 6.O-O O-O — Main Line, 7.Qc2, E01-E09 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Catalan, closed, E05 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7 - Catalan Opening: Open Defense, Classical Line, SÉRIE E
Saint Louis Rapid 2018 – Round 3.5 – Dominguez Perez, Leinier – 1/2-1/2 – Aronian, Levon – G15

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- 6...dxc4 7.Na3 (not 7...Na6, 7...Nc6, 7...c3), D70-D79 1. d4 Nf6 2. c4 g6 3. f3 d5 Neo-Gruenfeld defence, D77 - 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 - Neo-Grünfeld Defense: Classical Variation, SÉRIE D
Saint Louis Rapid 2018 – Round 4.1 – Nakamura, Hikaru – 1/2-1/2 – Caruana, Fabiano – G16

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- (not 7.Ne5, 7.Qa4), 5...a6 6.O-O Nc6, E01-E09 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Catalan, closed, E04 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 - Catalan Opening: Open Defense, SÉRIE E
Saint Louis Rapid 2018 – Round 4.5 – Dominguez Perez, Leinier – 1/2-1/2 – Anand, Viswanathan – G20

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- 7...h6 8.Bh4 Qb6, B20 - B99 - 1. e4 c5 - Sicilian Defense, B90-B99 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 Sicilian, Najdorf, B96 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 - Sicilian Defense: Najdorf Variation, B96 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
Saint Louis Rapid 2018 – Round 5.1 – Caruana, Fabiano – 1/2-1/2 – Vachier-Lagrave, Maxime – G21

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- 6.e4 c5 — Ragozin, 7.Bxc4 cxd4 8.Nxd4 Bxc3+ 9.bxc3 Qa5 10.Bb5+, D30-D39 1. d4 d5 2. c4 e6 Queen's gambit declined, D39 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 dxc4 - Queen's Gambit Declined: Ragozin Defense, Vienna Variation, SÉRIE D
Saint Louis Rapid 2018 – Round 5.2 – Grischuk, Alexander – 1/2-1/2 – Karjakin, Sergey – G22

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