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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
Erevan ch-URS 1975 – Round 1 – Romanishin, Oleg M – 1-0 – Petrosian, Tigran A. – G12

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- 1. c4 e6 2. g3 d5 3. Bg2 ..., 4...dxc4 - Neo-Catalan Accepted, A10-A39 English Opening, A13 - 1. c4 e6 - English Opening: Agincourt Defense, A13 - 1. c4 e6 2. Nf3 d5 - English Opening: Agincourt Defense, A13 - 1. c4 e6 2. Nf3 d5 3. g3 Nf6 - English Opening: Neo-Catalan, A13 - 1. Nf3 d5 2. c4 e6 3. g3 - English Opening: Agincourt Defense, A13 - 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 - English Opening: Neo-Catalan, SÉRIE A
Erevan ch-URS 1975 – Round 1 – Romanishin, Oleg M – 1-0 – Polugaevsky, Lev – G6

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- 6.g3 Nc6 — Main Line, 7.Bg2 Be7 8.O-O O-O 9.Nxd5 — Main Line, D40-D42 – 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 – Queen’s Gambit Declined: Semi-Tarrasch Defense, D41 - 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 d5 5. d4 e6 - Queen's Gambit Declined: Semi-Tarrasch Defense, SÉRIE D
Erevan ch-URS 1975 – Round 1 – Tal, Mikhail – 1/2-1/2 – Alburt, Lev – G35

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- 10.Bc2 c5, 11.d4 Qc7 12.Nbd2, 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, C97 - 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 Na5 - Ruy Lopez: Closed, Chigorin Defense, SÉRIE C
Erevan ch-URS 1975 – Round 1 – Tal, Mikhail – 1/2-1/2 – Petrosian, Tigran A. – G25

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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
Erevan ch-URS 1975 – Round 1 – Tal, Mikhail – 1/2-1/2 – Polugaevsky, Lev – G11

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- 6.Bb5 Bd6 — Main Line, 7.O-O Ne7 8.dxc5 Bxc5 9.Nb3 Bd6 10.Re1 O-O 11.Bg5 — Main Line, C00-C19 1. e4 e6 French defence, C09 - 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 - French Defense: Tarrasch Variation, Open System, Main Line, SÉRIE C
Erevan ch-URS 1975 – Round 1 – Tal, Mikhail – 1/2-1/2 – Vaganian, Rafael A – G30

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- 5...Nf6 6.Nc3 Nxd4, 7.Qxd4 d6, B20 - B99 - 1. e4 c5 - Sicilian Defense, B30 - B39 1.e4 c5 2. Nf3 Nc6 Sicilian defence, B36 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 - Sicilian Defense: Accelerated Dragon, Maróczy Bind, B36 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
Erevan ch-URS 1975 – Round 13 – Petrosian, Tigran A. – 1-0 – Beliavsky, Alexander G – G43

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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
Erevan ch-URS 1975 – Round 14 – Petrosian, Tigran A. – 1-0 – Gulko, Boris – G44

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