Black to play. This position is from Gelfand-Carlsen, Fidé Candidates London 2013. What was the key move that enabled Carlsen to make the most of his queenside pawns? Answers to me at The Spectator by Tuesday 16 April or via email to victoria@spectator.co.uk or by fax on 020 7681 3773. The winner will be the first correct answer out of a hat, and each week I shall be offering a prize of £20. Please include a postal address and allow six weeks for prize delivery.
Last week’s solution 1 Rh8+
Last week’s winner Nigel Clark, Romford

Get Britain's best politics newsletters
Register to get The Spectator's insight and opinion straight to your inbox. You can then read two free articles each week.
Already a subscriber? Log in
Comments
Join the debate for just $5 for 3 months
Be part of the conversation with other Spectator readers by getting your first three months for $5.
UNLOCK ACCESS Just $5 for 3 monthsAlready a subscriber? Log in