Raymond Keene

Polymath

issue 11 April 2015

I learn from The Problemist, the organ of the British Chess Problem Society, that the polymath Dr Jacob Bronowski also composed chess problems. According to the article I read, Bronowski was born in Lodz, Poland, in 1908, grew up in Germany and then became an undergraduate at Jesus College, Cambridge. He was a mathematician, biologist, historian of science, theatrical author, poet and inventor, and of course is most celebrated as the author and presenter of the 1973 BBC TV series The Ascent of Man. The puzzle in Diagram 1 composed by Bronowski.

This puzzle is a reflex mate which is a variant of the self-mate theme. In a self-mate White must force Black to checkmate him. The same applies in a reflex mate, with the extra rule that if either side can give checkmate, then they must.

Bronowski’s puzzle is solved by the move 1 Qb6! Now White threatens to play 2 Qxb7 when Black will be obliged to mate with 2 … Rh8.

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