Karpov vs E Cobo Arteaga, 1972  (B85) Sicilian, Scheveningen, Classical, 29 moves, 1-0 Karpov vs Spassky, 1973  (C94) Ruy Lopez, Closed, Breyer Defense, 34 moves, 1-0 Karpov vs Quinteros, 1973  (B97) Sicilian, Najdorf, 37 moves, 1-0 3 games