Gideon Stahlberg vs Miguel Najdorf
Alekhine Memorial Moscow URS round 5 1956.10.16
English Opening: Symmetrical Variation, Botvinnik System Reversed 1/2-1/2

Mikhail Botvinnik vs Miguel Najdorf
Amsterdam ol (Men) fin-A Amsterdam NED round 7.1 1954.09.19
English Opening: Symmetrical Variation, Mecking Variation 1-0