White to play. This position is a variation from Bellin-Georgiadis, Gibraltar 2015. White has given up his queen. How does he now force checkmate? Answers to me at The Spectator by Tuesday 17 February 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 am offering a prize of £20.

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