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- 6.O-O O-O — Main Line, 7.Qc2 a6 8.a4 Bd7 9.Qxc4 Bc6 10.Bg5 Bd5, 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
Interpolis 1979 – Round 1 – Huebner, Robert – 1/2-1/2 – Karpov, Aleksandr – G5

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- A10-A39 English Opening, A26 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 - English Opening: King's English Variation, Closed System, Full Symmetry, A26 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. e4 - English Opening: King's English Variation, Botvinnik System, A26 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4.... - English Opening, SÉRIE A
Interpolis 1979 – Round 1 – Larsen, Benjamin Holsko – 1/2-1/2 – Spassky, Boris V. – G2

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- 9...Re8 10.Be3 (not 10...exd4), E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E69 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. h3 - King's Indian Defense: Fianchetto Variation, Classical Main Line, SÉRIE E
Interpolis 1979 – Round 1 – Portisch, Lajos – 1-0 – Kavalek, Lubomir – G10

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- 8.h5 Bh7 — Main Line, 9.Bd3 Bxd3 10.Qxd3 Qc7, B10 - B19 1. e4 c6 Caro-Kann defence, B19 - 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 - Caro-Kann Defense: Classical Variation, SÉRIE B 1.e4 2....
Interpolis 1979 – Round 1 – Sax, Gyula – 1/2-1/2 – Hort, Vlastimil – G7

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- B20 - B99 - 1. e4 c5 - Sicilian Defense, B90-B99 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 Sicilian, Najdorf, B97 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 - Sicilian Defense: Najdorf Variation, Poisoned Pawn Variation, B97 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
Interpolis 1979 – Round 1 – Spassky, Boris V. – 1/2-1/2 – Portisch, Lajos – G6

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- 8.Qd2 Nc6, 9.O-O-O Nxd4 10.Bxd4 Be6 11.Kb1 Qc7 12.g4, B20 - B99 - 1. e4 c5 - Sicilian Defense, B70-B79 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 Sicilian, dragon variation, B76 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O - Sicilian Defense: Dragon Variation, Yugoslav Attack, SÉRIE B 1.e4 2....
Interpolis 1979 – Round 10 – Hort, Vlastimil – 1-0 – Sosonko, Gennadi – G38

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