Nils Johan Folke Ekstrom vs Herman Steiner
Hastings 1945/46 Hastings ENG round 2 1945.12.29
Colle System: Rhamphorhynchus Variation 0-1

Gosta Stoltz vs Nils Johan Folke Ekstrom
Zaanstreek Zaandam NED round 4 1946.06.06
French Defense: Winawer Variation, Advance Variation 1-0

Nils Johan Folke Ekstrom vs Laszlo Szabo
Zaanstreek Zaandam NED round 3 1946.06.05
Queen’s Gambit Declined: Semi-Tarrasch Defense 1-0