White to play. This is a variation from Carlsen-Aronian, Wijk aan Zee 2015. Black has just played his bishop to a3, uncovering an attack on the white queen while also threatening the c1-rook. How can White respond to this double attack? Answers to me at The Spectator by Tuesday 3 February or via email to email@example.com or by fax on 020 7681 3773. The winner will be the first correct answer out of a hat, and each week I am offering a prize of £20. Please include a postal address and allow six weeks for prize delivery.
Last week’s solution 1 f4
Last week’s winner Trevor Lloyd, London WC1