no. 466
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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 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 Bc5+

Last week’s winner Keith McDermott, Allerton, West Yorkshire