Black to play. This is from Botterill-Basman, Eastbourne 1973. What is Black’s best move? Answers to me at The Spectator by Tuesday 6 October or via email to victoria@spectator.co.uk or by fax on 020 7681 3773. The winner will be the first correct answer out of a hat, and each week there is a prize of £20. Please include a postal address and allow six weeks for prize delivery.

Last week’s solution 1 … R6f3+

Last week’s winner Nigel à Brassard, London W1