Paulin Lob vs Nicolaas Cortlever
Clare Benedict Cup Mont Pelerin SUI round 2 1953.04.09
Queen’s Pawn Game: Colle System 0-1

Salomon Flohr vs Nicolaas Cortlever
Amsterdam VARA Amsterdam NED round 2 1939.05.24
Grünfeld Defense: Russian Variation 1-0

Nicolaas Cortlever vs Asmundur Asgeirsson
Buenos Aires Olympiad prel-C Buenos Aires ARG round 1 1939.08.24
Russian Game 0-1

Max Euwe vs Nicolaas Cortlever
NED-ch Amsterdam NED round 6 1954.04.12
Slav Defense: Czech Variation, Classical System 0-1

Andrija Fuderer vs Nicolaas Cortlever
Amsterdam ol (Men) fin-A Amsterdam NED round 1 1954.09.12
Réti Opening: Anglo-Slav Variation, Bled Variation 1-0

Eduard Spanjaard vs Nicolaas Cortlever
NED-ch Amsterdam NED round 1 1950.07.17
Queen’s Gambit Declined: Alapin Variation 1-0

Jan Hein Donner vs Nicolaas Cortlever
Hoogovens Beverwijk NED round 1 1953.01.06
Ruy Lopez: Open, Howell Attack 1-0

Maximilian Ujtelky vs Nicolaas Cortlever
Hoogovens-B Wijk aan Zee NED round 15 1969.02.01
Réti Opening: Anglo-Slav Variation, Bled Variation 0-1