White to play. J. Polgar-Carlsen, Casual blitz game, Madrid 2022. Carlsen’s last move 15…Ra8-c8 was a losing blunder. How did Judit Polgar exploit it? Answers should be emailed to chess@spectator.co.uk by Monday 11 July. 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 Be5! Black resigned. Either rook capture allows Qxg7 mate, or 1…Bxe5 2 Qxe8+ Kh7 3 Qg6+ and Rd8+
Last week’s winner Simon Brunning, Putney, London

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