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- D20-D29 1. d4 d5 2. c4 dxc4 Queen's gambit accepted, D27 - 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 - Queen's Gambit Accepted: Classical Defense, Main Line, D27b - 7.b3 - QGA: Classical (1958), SÉRIE D
82. Tata Steel GpA 2020 – Round 4.4 – So, Wesley – 1-0 – Firouzja, Alireza – G24
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- E20-E59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 Nimzo-Indian defence, E39 - 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O - Nimzo-Indian Defense: Classical Variation, Berlin Variation, Pirc Variation, E39h - 7.g3 - Classical, Pirc (1941), SÉRIE E
82. Tata Steel GpA 2020 – Round 4.5 – Xiong, Jeffery – 1/2-1/2 – Caruana, Fabiano – G25
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- B20-B99 1. e4 c5 - Sicilian Defense, B30-B39 1.e4 c5 2. Nf3 Nc6 Sicilian defence, B31 - 1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 - Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, B31o - 6.* - Rossolimo, SÉRIE B 1.e4 2....
82. Tata Steel GpA 2020 – Round 5.1 – Carlsen, Magnus – 1/2-1/2 – Dubov, Daniil – G27
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