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- 7.Bg5 a6, 8.Na3 b5 9.Nd5 Be7, B20 - B99 - 1. e4 c5 - Sicilian Defense, B30 - B39 1.e4 c5 2. Nf3 Nc6 Sicilian defence, B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 - Sicilian Defense: Open, B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bc5 - Sicilian Defense: Four Knights Variation, Cobra Variation, B33 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
63. ch-USA 2019 – Round 5.1 – Nakamura, Hikaru – 1/2-1/2 – Caruana, Fabiano – G25

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- 6...h6 7.Bh4 (not 7...b6), D50-D69 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Queen's Gambit Declined, 4.Bg5, D54 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Rc1 - Queen's Gambit Declined: Neo-Orthodox Variation, SÉRIE D
63. ch-USA 2019 – Round 5.5 – Shankland, Sam – 1/2-1/2 – Lenderman, Aleksandr – G29

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- A10-A39 English Opening, A28 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d3 - English Opening: King's English Variation, Four Knights Variation, Flexible Line, A28 - 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4.... - English Opening, SÉRIE A
63. ch-USA 2019 – Round 5.6 – Gareyev, Timur – 1-0 – Liang, Awonder – G30

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- 5.d4 Nd6, 6.Bxc6 dxc6 7.dxe5 Nf5 8.Qxd8+, C60-C69 1. e4 e5 2. Nf3 Nc6 3. Bb5 Ruy Lopez (Spanish opening), C67 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 - Ruy Lopez: Berlin Defense, Rio Gambit Accepted, SÉRIE C
63. ch-USA 2019 – Round 6.4 – Sevian, Samuel – 1/2-1/2 – Shankland, Sam – G34

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- 7.e3 e6 — Exchange, 8.Qb3 Bb4, D10-D19 1. d4 d5 2. c4 c6 Queen's Gambit Slav defence, D14 - 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 Bf5 - Slav Defense: Exchange Variation, Symmetrical Line, SÉRIE D
63. ch-USA 2019 – Round 6.5 – Lenderman, Aleksandr – 1/2-1/2 – Robson, Ray – G35

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