White to play. Gukesh–Yip, Gelfand Challenge, June 2021. White has strong pressure on the f-file, but which move forces a decisive material gain? Answers should be emailed to chess@spectator.co.uk by Monday 28 June. 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.
Luke McShane
No. 659

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