no. 567
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White to play. This position is from Alekhine-Nimzowitsch, San Remo 1930. Can you spot the quiet move that puts black in zugzwang? Answers to me at The Spectator by Tuesday 20 August 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 Rxe6

Last week’s winner Philip Nižetic, London SW7