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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 ? – Andersson, Ulf 1949 – 1/2-1/2 – Braga, Fernando – G60

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- 4.exd5 Qxd5 — Main Line, 5.Ngf3 cxd4 6.Bc4 Qd6 7.O-O Nf6 8.Nb3 Nc6 9.Nbxd4 Nxd4 10.Nxd4 a6 — Main Line, C00-C19 1. e4 e6 French defence, C07 - 1. e4 e6 2. d4 d5 3. Nd2 c5 - French Defense: Tarrasch Variation, Open System, SÉRIE C
Mar del Plata 1982 – Round ? – Larsen, Bent – 1-0 – Seirawan, Yasser – G66

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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 ? – Larsen, Bent – 1/2-1/2 – Andersson, Ulf 1949 – G62

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- 6...dxc6 7.d3 Nd7 — Exchange, 8.Nbd2 O-O 9.Nc4, C80-C89 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 & C84-C89 C84 5. O-O Be7 Ruy Lopez, closed defence, C85 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6 - Ruy Lopez: Closed, Delayed Exchange, SÉRIE C
Mar del Plata 1982 – Round ? – Timman, Jan H – 1-0 – Najdorf, Miguel – G65

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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 – Andersson, Ulf – 1/2-1/2 – Braga, Felipe De Souza – G8

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- 9...d6 10.b3, E12-E19 1. d4 Nf6 2. c4 e6 3. Nf3 b6 Queen's Indian defence, E19 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 - Queen's Indian Defense: Classical Variation, Traditional Variation, Main Line, SÉRIE E
Mar del Plata 1982 – Round 1 – Andersson, Ulf 1949 – 1/2-1/2 – Najdorf, Miguel – G13

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