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.
In the absence on holiday of Steve Giddins, I am taking this opportunity of
presenting a problem by our late treasurer, Paul Valois, who died on 15th May.
Paul liked and composed reflexmates, so one of his seems appropriate. He dedicated
this one to the 75th Anniversary of the BCPS and it appeared as one of twenty
original problems in a ‘75th Anniversary Album’ in The Problemist
In a reflexmate, White is to play and force an unwilling Black to mate him on his
second move and if either side is able to mate in one, it must do so.
The strong key self-blocks e1 to enable the threat of 2.Bg2 followed by the
compulsory mate in one, 2...hxg2#. In the first five variations, Black tries
interposing on the bishop's line to g2, only to let in a white move unpinning the
bPg3. A further move onto the long diagonal guards e1 and allows the wQ to hideaway,
allowing the bQ to mate on d3. In the final variation, a black check (which can be
inconvenient for composers of reflexmates) is blocked by the wQ, which is then
captured by Black in mating.