In September 1941, he took 11th out of 16 competitors at Munich with 6.5/15, but drew his game with World Champion Alexander Alekhine.

Füster's first success in his new land was winning the Toronto City Championship in 1954; he repeated in 1955, 1956, 1962, 1969, and 1971 (shared).

Füster replaced Vaitonis (who declined to go) at the Portorož interzonal tournament in 1958, finishing in last place.

[4] Füster also represented Canada in two Chess Olympiads in 1958 at Munich (8.5/14 on board 4; (+5 =7 -2)), and in 1970 at Siegen (+1 =1 -4) as second reserve.

[5] He was awarded the International Master title in 1969, following his strong 3rd-place finish at the Closed Canadian Chess Championship, held at Pointe-Claire.

He was a lover of speed chess, very generous with advice and encouragement to young players, and beloved for his aphorisms.