Publishing the Thema Danicum is the prime activity of the Danish Chess Problem Society. It is a highly serious problem magazine published for the members on a quarterly basis. Every issue holds some 100 problems for both beginners and experts. About a third af the problems are originals. The magazine also contains articles abount chess problems, portraits of problemists, solutions and comments for the problems of TD half a year ago, the positions in the running solving contest, reports from the monthly meetings, tourney announcements, etc.
The magazine is in A5-format and contains 28 pages in a handsome typographical layout.