Round 1 O'Kelly vs Miles, 1978 (E15) Queen's Indian, 25 moves, 0-1 Round 1, Game 1 Nunn vs Hort, 1978 (C43) Petrov, Modern Attack, 33 moves, 1/2-1/2 Round 1, Game 2 Hort vs Nunn, 1978 (B22) Sicilian, Alapin, 45 moves, 1-0 Round 1 Game 1 Browne vs J H Donner, 1978 (B08) Pirc, Classical, 41 moves, 0-1 Round 1 Game 1 Forintos vs Larsen, 1978 (A53) Old Indian, 55 moves, 0-1 Semi-final, Game 1 Hort vs Miles, 1978  (B22) Sicilian, Alapin, 35 moves, 1-0 Semi-final, Game 1 J H Donner vs Larsen, 1978 (E41) Nimzo-Indian, 42 moves, 1/2-1/2 Semi-final, Game 2 Larsen vs J H Donner, 1978 (D50) Queen's Gambit Declined, 21 moves, 1-0 3rd/4th place playoff, Game 1 Miles vs J H Donner, 1978 (D12) Queen's Gambit Declined Slav, 26 moves, 1/2-1/2 3rd/4th place playoff, Game 2 J H Donner vs Miles, 1978 (A10) English, 47 moves, 0-1 Final, Game 1 Larsen vs Hort, 1978 (D85) Grunfeld, 49 moves, 1/2-1/2 Final, Game 2 Hort vs Larsen, 1978 (C60) Ruy Lopez, 24 moves, 1/2-1/2 Final, Game 3 Larsen vs Hort, 1978 (D10) Queen's Gambit Declined Slav, 42 moves, 1/2-1/2 Final, Game 4 Hort vs Larsen, 1978 (A17) English, 48 moves, 1/2-1/2 Final, Game 5 Larsen vs Hort, 1978 (D10) Queen's Gambit Declined Slav, 56 moves, 1-0 15 games