White to play. This position is from Hartston-Penrose, London 1963. Here Hartston agreed a draw but he missed a cast that would have reeled Black in. Answers to me at The Spectator by Tuesday 30 April or via email to email@example.com or by fax on 020 7681 3773. The winner will be the first correct answer out of a hat, and each week I shall be offering a prize of £20. Please include a postal address and allow six weeks for prize delivery.
Last week’s solution 1 Rd1
Last week’s winner Paul Harrison, Blackburn, Lancashire