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- A80-A99 1. d4 f5 Dutch, A89 - 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 Nc6 - Dutch Defense: Leningrad Variation, Matulovic Variation, A89 - 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4.... - Dutch Defense, SÉRIE A
63. ch-USA 2019 – Round 11.1 – Xiong, Jeffery – 0-1 – Nakamura, Hikaru – G61

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- 6.f3 e5, 7.Nb3, B20 - B99 - 1. e4 c5 - Sicilian Defense, B50-B59 Sicilian 1. e4 c5 2. Nf3 d6, B56 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 - Sicilian Defense: Classical Variation, B56 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
63. ch-USA 2019 – Round 11.2 – Dominguez Perez, Leinier – 1/2-1/2 – Gareyev, Timur – G62

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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 11.4 – So, Wesley – 0-1 – Liang, Awonder – G64

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- 6...Be7 7.e3 Nbd7 — Exchange, 8.Bd3, D30-D39 1. d4 d5 2. c4 e6 Queen's gambit declined, D36 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 - Queen's Gambit Declined: Exchange Variation, Reshevsky Variation, SÉRIE D
63. ch-USA 2019 – Round 11.6 – Robson, Ray – 0-1 – Akobian, Varuzhan – G66

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- 6...a6 7.Qd2 (not 7...Nf6), B20 - B99 - 1. e4 c5 - Sicilian Defense, B40 - B49 1. e4 c5 2. Nf3 e6 Sicilian defence, B48 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 - Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack, B48 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
63. ch-USA 2019 – Round 2.5 – Dominguez Perez, Leinier – 1/2-1/2 – Shankland, Sam – G11

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