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- A10-A39 English Opening, A25 - 1. c4 e5 2. Nc3 Nc6 - English Opening: King's English Variation, Reversed Closed Sicilian, A25 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Rb1 Nh6 5. Bg2 Bg7 - English Opening: Closed, Taimanov Variation, A25 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4.... - English Opening, SÉRIE A
82. Tata Steel GpA 2020 – Round 1.1 – Carlsen, Magnus – 1/2-1/2 – Aadvika Giri – G1

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- 7...Be7 8.O-O O-O, 9.Kh1, B20 - B99 - 1. e4 c5 - Sicilian Defense, B50-B59 Sicilian 1. e4 c5 2. Nf3 d6, B59 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 - Sicilian Defense: Boleslavsky Variation, B59 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
82. Tata Steel GpA 2020 – Round 1.6 – Vitiugov, Nikita – 1/2-1/2 – Duda, Jacob – G6

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- 11.Nbd2 Bf8 12.a4 h6 13.Bc2 exd4 14.cxd4 Nb4 15.Bb1 c5, 9...Bb7 10.d4 Re8, 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, C92 - 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 9. h3 - Ruy Lopez: Closed, SÉRIE C
82. Tata Steel GpA 2020 – Round 1.7 – Firouzja, Alireza – 1-0 – Kovalev, Vl – G7

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- 5.e3 (not 5...b5), D10-D19 1. d4 d5 2. c4 c6 Queen's Gambit Slav defence, D15 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 - Slav Defense: Three Knights Variation, D15 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 - Slav Defense: Chebanenko Variation, SÉRIE D
82. Tata Steel GpA 2020 – Round 10.3 – Xiong, Jeffery – 1-0 – Artemiev, Vladislav – G59

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