As I have mentioned elsewere, mr I. Koutalidis, editor of the chess column of the magazine, motivated and decidedly cultivated the talent of young composers (Vyron Zappas, Nikos Siotis, Dimitris Kapralos) of that time
In a selfmate, White plays first and forces Black (who is resisting) to give mate.
rks2R2/pb6/P1pP4/2P3p1/1R4p1/8/5pPB/5K2 (8 + 9)
s#3, selfmate threemover
1... g3 2.Rb1 g4 3.Bb2 Bxa6#
It uses a white interference.