no. 496
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White to play. This position is from Mamedyarov-Savchenko, Moscow 2015. White’s forthcoming tactic led to a decisive material gain. What did he play? Answers to me at The Spectator by Tuesday 13 March 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 Nf6+

Last week’s winner Tim Leeney, Hartfield, East Sussex