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.
Quoting this three-mover in The Problemist, the late Robin Matthews wrote: “A problem to show to a player as an example of high-class yet easily intelligible modern composition.” The three leading variations show remarkable unity.
Solution: 1.Kg3 threatens 2.Sxe3+ Ke6 3.Bd5. In three variations the black king can either capture the queen or walk into a mate from a newly-formed battery, all of the firing pieces moving to d6.