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- D50-D69 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Queen's Gambit Declined, 4.Bg5, D58a - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 - Queen's Gambit Declined: Tartakower Defense, D58b - 8.Qb3, SÉRIE D
Wch candidates qf 1980 – Round 1 – Polugaevsky, Lev – 1-0 – Tal, Mikhail – G1

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- 7...b5 8.e5 dxe5, 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.... - Sicilian Defense, B96a - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 - Sicilian Defense: Najdorf Variation, B96p - 9.fxe5 Qc7 10.Bxb5+, SÉRIE B 1.e4 2....
Wch candidates qf 1980 – Round 2 – Tal, Mikhail – 0-1 – Polugaevsky, Lev – G2

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- D50-D69 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Queen's Gambit Declined, 4.Bg5, D58a - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 - Queen's Gambit Declined: Tartakower Defense, D58b - 8.Qb3, SÉRIE D
Wch candidates qf 1980 – Round 3 – Polugaevsky, Lev – 1/2-1/2 – Tal, Mikhail – G3

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- 7...b5 8.e5 dxe5, 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.... - Sicilian Defense, B96a - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 - Sicilian Defense: Najdorf Variation, B96s - 9.fxe5 Qc7 10.exf6 Qe5+ 11.Be2 Qxg5 12.Qd3, SÉRIE B 1.e4 2....
Wch candidates qf 1980 – Round 4 – Tal, Mikhail – 1/2-1/2 – Polugaevsky, Lev – G4

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- 11.Bd2 (not 11...Kh8, 11...Nf6, 11...c5), 9...Ne8 10.Nd3 f5, E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E98 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 - King's Indian Defense: Orthodox Variation, Classical System, SÉRIE E
Wch candidates qf 1980 – Round 5 – Polugaevsky, Lev – 1/2-1/2 – Tal, Mikhail – G5

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- 6.g3 Nc6, B20 - B99 - 1. e4 c5 - Sicilian Defense, B80 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense, B80-B85 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 Sicilian, Scheveningen variation, B80a - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 - Sicilian Defense: Scheveningen Variation, B80r - 7.Bg2 a6 8.O-O Bd7, SÉRIE B 1.e4 2....
Wch candidates qf 1980 – Round 6 – Tal, Mikhail – 1/2-1/2 – Polugaevsky, Lev – G6

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- E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E99 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. f3 f5 - King's Indian Defense: Orthodox Variation, Classical System, Traditional Line, SÉRIE E
Wch candidates qf 1980 – Round 7 – Polugaevsky, Lev – 1-0 – Tal, Mikhail – G7

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