White to play. F. Olafsson – Tal, Alekhine Memorial, Moscow 1971. Tal’s last move, attacking the queen, was a huge mistake. How did Olafsson win the game? Email answers to chess@spectator.co.uk by Monday 12 May. 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 Re8! wins, as Rxe8 2 Bxd5+ Nc6 3 Bxc6 is mate.
Last week’s winner Bernard T. Golding, Whitley Bay, North Tyneside
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