Black to play. O. Bronstein – L. McShane, World Blitz Team Championships, London, 2025. Bronstein sacrificed a knight for a kingside attack, but here I missed a chance to decide the game in my favour. Which move should I have played? Email answers to chess@spectator.co.uk by Monday 1 September. There is a prize of £20 for the first correct answer out of a hat. Allow six weeks for prize delivery.

Last week’s solution David Marsh, Gurnard
Last week’s winner 1 Qh8! Then 1…Kd4 2 Rf4# or 1…d4 2 Qh1# or 1…g3 2 Qh4#. Any move by Re5 is met by 2 Nc5#
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