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- 11.b3 Bf6 12.Bb2 (not 12...Qe7), 9...c5 10.Rd1 d6 — Main Line, 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
Leningrad ch-URS 1977 – Round 1 – Polugaevsky, Lev – 1/2-1/2 – Smyslov, Vladimir – G34

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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
Leningrad ch-URS 1977 – Round 1 – Romanishin, Oleg M – 1/2-1/2 – Tal, Mikhail – G33

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- 7...Qc7 8.Bxf6, 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, B96 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 - Sicilian Defense: Najdorf Variation, B96 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
Leningrad ch-URS 1977 – Round 1 – Tal, Mikhail – 0-1 – Balashov, Yuri S – G22

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- 1. c4 e6 2. g3 d5 3. Bg2 ..., 1. c4 e6 2. Nf3 d5 - English Opening: Agincourt Defense, 1. Nf3 d5 2. c4 e6 3. g3 - English Opening: Agincourt Defense, 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 - English Opening: Neo-Catalan, A10-A39 English Opening, A13 - 1. c4 e6 - English Opening: Agincourt Defense, A13r - 1. c4 e6 2. Nf3 d5 3. g3 Nf6 - English Opening: Neo-Catalan, A13u - 4...dxc4 - Neo-Catalan Accepted, SÉRIE A
Leningrad ch-URS 1977 – Round 1 – Tal, Mikhail – 0-1 – Polugaevsky, Lev – G39

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- 6.d4 b5, 7.Bb3 (not 7...d5), C80 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 - Ruy Lopez: Open, 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, SÉRIE C
Leningrad ch-URS 1977 – Round 1 – Tal, Mikhail – 0-1 – Smyslov, Vladimir – G25

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- E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E96 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Re1 c6 9. Bf1 a5 - King's Indian Defense: Orthodox Variation, Positional Defense, Main Line, SÉRIE E
Leningrad ch-URS 1977 – Round 1 – Tal, Mikhail – 1-0 – Grigorian, Karen – G8

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