no. 486
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White to play. This position is from Aronian-Giri, Palma de Mallorca 2017. Aronian now finished off a fine attack with a clever coup. What did he play? Answers to me at The Spectator by Tuesday 2 January 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 Qg8+