White to play. This position is from Quparadze-Uzunoglu, Cesme 2017. Black is hoping for counterplay on the a1-h8 diagonal but White’s next move put paid to this. What did he play? Answers to me at The Spectator by Tuesday 25 July or via email to victoria@spectator.co.uk. There is a prize of £20 for the first correct answer out of a hat.