Simagin vs Kotov, 1945  (E02) Catalan, Open, 5.Qa4, 62 moves, 1-0 Kotov vs Simagin, 1946  (A80) Dutch, 25 moves, 0-1 Simagin vs Kotov, 1947  (A07) King's Indian Attack, 66 moves, 0-1 Kotov vs Simagin, 1951 (A53) Old Indian, 66 moves, 1/2-1/2 Simagin vs Kotov, 1952  (A07) King's Indian Attack, 33 moves, 0-1 Simagin vs Kotov, 1955 (B06) Robatsch, 48 moves, 1/2-1/2 Kotov vs Simagin, 1967  (A80) Dutch, 46 moves, 0-1 7 games