White to play. Maxime Lagarde-Thai Dai Van Nguyen, Reykjavik 2021. Lagarde found a brilliant finish, forcing mate in just a few moves. What was his next move? Answers should be emailed to chess@spectator.co.uk by Monday 17 January. 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 Rh4+ Nxh4 2 g4 mate
Last week’s winner Cyril Berkeley, Reading, Berks
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