
White to play. Composed by František Dedrle, Deutsches Wochenschach, 1921. Black plans to draw by eliminating the last pawn on b5. What is White’s only winning move? Email answers to chess@spectator.co.uk by Monday 6 January. There is a prize of a £20 John Lewis voucher for the first correct answer out of a hat. Please include a postal address.

Last week’s solution 1 Kf4! cuts off the g6-f5 escape, threatening Re8-h8 and Rb8-g8 mate. If 1…Rh5 then 2 Rg8+, 3 Rh8+ & 4 Rbg8#
Last week’s winner Ruby Mishka Davis, York
Comments