J Bednarski vs Korchnoi, 1966  (A07) King's Indian Attack, 33 moves, 0-1 J Barle vs Browne, 1979 (B21) Sicilian, 2.f4 and 2.d4, 25 moves, 0-1 P Christen vs R Cifuentes, 1984 (B21) Sicilian, 2.f4 and 2.d4, 31 moves, 0-1 Mamedyarov vs Carlsen, 2008  (B30) Sicilian, 40 moves, 0-1 4 games