This site now hosts a complete archive of PDF versions of The Problemist Supplement, from 1992 to the current year. This magazine is aimed mainly at newcomers to chess composition, so it is recommended for those who want to find out more about chess problems. You can find the archive here.
Reason for choice: I remember being thrilled to
solve this, one of the first of a series of long helpmate
extravaganzas by the late Gábor Cseh in which soundness is
wittily guaranteed by the extreme difficulty of avoiding
mating White, and every last detail, down to the apparent
flaw of the unused white knight at a8, is beautifully