Boris De Greiff vs Carlos Jauregui
Moscow ol (Men) fin-B Moscow URS round 1 1956.09.10
French Defense: Tarrasch Variation, Open System, Main Line 1/2-1/2

Georges Philippe vs Boris De Greiff
Amsterdam ol (Men) qual-D Amsterdam NED round 2 1954.09.05
Nimzo-Larsen Attack: Classical Variation 0-1

Boris De Greiff vs Tigran Vartanovich Petrosian
Portoroz Interzonal Portoroz SLO round 2 1958.08.06
King’s Indian Defense: Petrosian Variation, Keres Defense 1/2-1/2