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- 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, E19d - 10.* - Old Main Line, SÉRIE E
Candidats qf1 1977 – Round 10 – Petrosian, Tigran V. – 1/2-1/2 – Korchnoi, Viktor – G6
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- 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, E05d - 7.Ne5 - Open, Classical (1946), SÉRIE E
Candidats qf1 1977 – Round 3 – Korchnoi, Viktor – 1/2-1/2 – Petrosian, Tigran V. – G2
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- D40-D42 – 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 – Queen’s Gambit Declined: Semi-Tarrasch Defense, D41 - 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5 - QGD, D41n - 12…* - Semi-Tarrasch, Main Line, SÉRIE D
Candidats qf1 1977 – Round 4 – Petrosian, Tigran V. – 1/2-1/2 – Korchnoi, Viktor – G3
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- D50-D69 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Queen's Gambit Declined, 4.Bg5, D61 - 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Qc2 - QGD (1905), D61l - 8…c5 - Orthodox, Rubinstein (1908), SÉRIE D
Candidats qf1 1977 – Round 7 – Korchnoi, Viktor – 1/2-1/2 – Petrosian, Tigran V. – G5
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