Constricted into zugzwang with only a pawn and minor traded! Karpov vs Unzicker, 1974  (C98) Ruy Lopez, Closed, Chigorin, 44 moves, 1-0 Karpov vs Korchnoi, 1974  (B77) Sicilian, Dragon, Yugoslav Attack, 27 moves, 1-0 Karpov vs J Polgar, 1994  (B22) Sicilian, Alapin, 33 moves, 1-0 3 games