no. 529
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Black to play. This position is from Carlsen-Ding Liren, Porto Carras 2018. Black tried 1 ... Nxg4 here but Carlsen eventually held on for a draw. What would have been a better way to try for an advantage? Answers to me at The Spectator by Tuesday 30 October 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 Nd6

Last week’s winner John McAleenan, Newry, Co. Down