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- 5.Bxc4 c5, 6.Qe2 a6 7.dxc5 Bxc5 8.O-O Nc6, D20-D29 1. d4 d5 2. c4 dxc4 Queen's gambit accepted, D26 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 - Queen's Gambit Accepted: Normal Variation, Traditional System, SÉRIE D
Mar del Plata 1982 – Round 1 – Portisch, Lajos – 1/2-1/2 – Garcia Palermo, Carlos Horacio – G21

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- 6.O-O O-O — Main Line, 7.Qc2 a6 8.Qxc4 b5 9.Qc2 Bb7 10.Bf4 Nc6 11.Rd1, 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
Mar del Plata 1982 – Round 1 – Portisch, Lajos – 1/2-1/2 – Karpov, Aleksandr – G27

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- A10-A39 English Opening, A17 - 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 c5 5. e3 e6 - English Opening: Anglo-Indian Defense, A17 - 1. c4 Nf6 2. Nc3 e6 - English Opening: Anglo-Indian Defense, Hedgehog System, SÉRIE A
Mar del Plata 1982 – Round 1 – Quinteros, Miguel A. – 1/2-1/2 – Andersson, Ulf 1949 – G17

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- A10-A39 English Opening, A19 - 1. c4 e6 2. Nc3 Nf6 3. e4 c5 - English Opening: Mikenas-Carls, Sicilian, A19 - 1. c4 e6 2. Nc3 Nf6 3. e4 c5 4. e5 Ng8 - English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit, SÉRIE A
Mar del Plata 1982 – Round 1 – Seirawan, Yasser – 1/2-1/2 – Andersson, Ulf 1949 – G18

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- A50 - A59 1. d4 Nf6 2. c4, A54 - 1. d4 Nf6 2. c4 d6 3. Nc3 e5 - Old Indian Defense: Ukrainian Variation, A54 - 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. e3 Nbd7 5. Bd3 - Old Indian Defense: Duz-Khotimirsky Variation, SÉRIE A
Mar del Plata 1982 – Round 1 – Timman, Jan H – 0-1 – Larsen, Benjamin Holsko – G26

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