Isaak Mazel vs Fyodor Duz-Khotimirsky
20th Ch Moscow Moscow (URS) 1940.??.??
English Opening: Caro-Kann Defensive System 0-1

Isaak Mazel vs Viktor Arsentievich Goglidze
USSR Championship Moscow URS round 13 1931.11.06
English Opening: King’s English Variation, Three Knights System 1/2-1/2

Dmitry Osipovich Rovner vs Isaak Mazel
Trade Unions Championship Moscow (URS) 1936.01.??
Sicilian Defense: Classical Variation 1-0

Isaak Mazel vs Sergey Ivanovich Pimenov
Trade Unions Championship Moscow (URS) 1936.01.??
Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Alatortsev- Lisitsyn Line 0-1