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- E12-E19 1. d4 Nf6 2. c4 e6 3. Nf3 b6 Queen's Indian defence, E17 - 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 - Queen's Indian Defense: Traditional Variation, E17f - 6.Nc3 O-O 7.Qc2 d5 - Queen’s Indian (1931), SÉRIE E
Candidates final 1977 – Round 17 – Korchnoi, Viktor – 1-0 – Spassky, Boris V. – G2
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