Horacio Abramson vs Jorge Szmetan
ARG-ch Buenos Aires 1978.??.??
English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense 0-1

Miguel Najdorf vs Sergio Carlos Giardelli
ARG-ch Buenos Aires ARG round 18 1975.07.17
Nimzo-Indian Defense: Normal Variation, Gligoric System, Bernstein Defense 1-0