
White to play. Gukesh-Praggnanandhaa, Tata Steel Masters tiebreak, 2025. Black’s last move, 35…Qd3-d6 was a blunder. Which move did Gukesh play to exploit it? Email answers to chess@spectator.co.uk by Monday 17 February. There is a prize of a £20 John Lewis voucher for the first correct answer out of a hat. Please include a postal address.

Last week’s solution 1…Rxf4+ 2 Kxf4 stalemate. Not 1…Rd5+ 2 Be5 Rb5 3 Ra4+! Kh3 4 Ra2 and White wins.
Last week’s winner Alex Newman, Shalford, Surrey

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