PROBLEM
Chess composition magazine. Was published at Zagreb as a body of the Chess Union of Yugoslavian Composers, since 1958 of the Permanent Commission in Chess Compositions. Main editor was N.Petrovich. There were 210 issues published in the period of 1951-81. Articles in different languages devoted to the theory and history of the chess compositions, creativity of chess composers, comments on chess works, and official materials of the Permanent Commission of FIDE were published in this magazine.