Round 1 Korchnoi vs Portisch, 1983  (A17) English, 55 moves, 1-0 Round 2 Portisch vs Korchnoi, 1983 (D85) Grunfeld, 50 moves, 1/2-1/2 Round 3 Korchnoi vs Portisch, 1983  (A33) English, Symmetrical, 35 moves, 1-0 Round 4 Portisch vs Korchnoi, 1983  (D85) Grunfeld, 55 moves, 0-1 Round 5 Korchnoi vs Portisch, 1983 (A33) English, Symmetrical, 52 moves, 1/2-1/2 Round 6 Portisch vs Korchnoi, 1983  (D97) Grunfeld, Russian, 56 moves, 1/2-1/2 Round 7 Korchnoi vs Portisch, 1983 (A33) English, Symmetrical, 28 moves, 1/2-1/2 Round 8 Portisch vs Korchnoi, 1983  (E12) Queen's Indian, 38 moves, 1-0 Round 9 Korchnoi vs Portisch, 1983  (A30) English, Symmetrical, 57 moves, 1-0 9 games