Constant Orbaan vs Werner Golz
Nimzowitsch Memorial Copenhagen DEN 1960.08.??
French Defense: Advance Variation 0-1

Sejer Holm Petersen vs Constant Orbaan
Nimzowitsch Memorial Copenhagen DEN 1960.08.??
Old Indian Defense: Dus-Khotimirsky Variation 0-1

Jens Enevoldsen vs Constant Orbaan
Nimzowitsch Memorial Copenhagen DEN 1960.08.??
English Opening: Anglo-Indian Defense, Grünfeld Formation 1-0