Mikhail Botvinnik vs Mikhail Tal
Botvinnik - Tal World Championship Match Moscow URS round 14 1960.04.19
Nimzo-Indian Defense: Sämisch Variation, Accelerated 1/2-1/2

Mikhail Botvinnik vs Alexander Kotov
Groningen Groningen NED round 14 1946.08.30
Nimzo-Indian Defense: Sämisch Variation, Accelerated 0-1