Korchnoi vs Polugaevsky, 1977  (A17) English, 60 moves, 1-0 Polugaevsky vs Korchnoi, 1977  (E19) Queen's Indian, Old Main line, 9.Qxc3, 40 moves, 0-1 Polugaevsky vs Korchnoi, 1977  (A10) English, 59 moves, 0-1 Polugaevsky vs Korchnoi, 1977  (E00) Queen's Pawn Game, 50 moves, 1/2-1/2 Korchnoi vs Polugaevsky, 1977 (A17) English, 21 moves, 1/2-1/2 Korchnoi vs Polugaevsky, 1977 (A21) English, 34 moves, 1/2-1/2 Polugaevsky vs Korchnoi, 1977  (D87) Grunfeld, Exchange, 74 moves, 1/2-1/2 Korchnoi vs Polugaevsky, 1977  (A17) English, 19 moves, 1/2-1/2 Polugaevsky vs Korchnoi, 1977  (E00) Queen's Pawn Game, 36 moves, 1-0 Korchnoi vs Polugaevsky, 1977  (D47) Queen's Gambit Declined Semi-Slav, 43 moves, 1-0 Korchnoi vs Polugaevsky, 1977 (D47) Queen's Gambit Declined Semi-Slav, 40 moves, 1/2-1/2 Polugaevsky vs Korchnoi, 1977 (A40) Queen's Pawn Game, 33 moves, 1/2-1/2 Korchnoi vs Polugaevsky, 1977  (D47) Queen's Gambit Declined Semi-Slav, 63 moves, 1-0 13 games