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- D80-D99 Gruenfeld defence1. d4 Nf6 2. c4 g6 3. Nc3 d5, D97 - 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 - Grünfeld Defense: Russian Variation, D97l - 7…Nc6 - Russian Variation, Byrne Variation (1961), SÉRIE D
Candidates Match 1983 – Round 6 – Portisch, Lajos – 1/2-1/2 – Korchnoi, Viktor – G2
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