Miguel Najdorf vs Ruben Shocron
Mar del Plata Mar del Plata ARG round 5 1956.03.16
Nimzo-Indian Defense: Normal Variation, Bernstein Defense 1/2-1/2

Carlos Hugo Maderna vs Ruben Shocron
ARG-ch Buenos Aires ARG round 1 1955.11.12
Italian Game: Bird’s Attack 1-0

Alberto Foguelman vs Ruben Shocron
ARG-ch Buenos Aires 1953.??.??
Catalan Opening: Open Defense 1-0

Robert James Fischer vs Ruben Shocron
Mar del Plata Mar del Plata ARG round 7 1959.03.30
Ruy Lopez: Closed, Chigorin Defense 1-0