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- 8.O-O O-O — Main Line, D30-D39 1. d4 d5 2. c4 e6 Queen's gambit declined, D34a - 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 - Tarrasch Defense: Prague Variation, Main Line, D34u - 9.Bg5 cxd4 10.Nxd4 h6 11.Be3 Re8 (not 12.Qb3, 12.Rc1), SÉRIE D
Candidats sf1 1983 – Round 2 – Korchnoi, Viktor – 1/2-1/2 – Kasparov, Garry – G2
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- 6.O-O O-O — Main Line, 7.Qc2 a6 8.Qxc4 b5 9.Qc2 Bb7 10.Bd2 Be4, 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
Candidats sf1 1983 – Round 4 – Korchnoi, Viktor – 1/2-1/2 – Kasparov, Garry – G4
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