Rowson-Yermolinsky, World Open 2002. This position arose after a tactical skirmish. White has only one good way to meet the threat to the rook, which had to be seen well in advance. What is it? Answers should be sent to ‘Chess’ at The Spectator by Tuesday 28 February or via email to victoria@spectator.co.uk. There is a prize of £20 for the first correct answer out of a hat. Please include a postal address and allow six weeks for prize delivery.
 
Last week’s solution 1 Qg8+! Bf7 2 Qc8+ Ke7 3 Qd8+ Ke6 4 Qd6#
Last week’s winner Tim Leeney, Hartfield, East Sussex/>