Kokkoris–Kavalek, Athens 1968. Kavalek’s next move initiated a beautiful forced mating sequence. What did he play? Answers should be emailed to chess@spectator.co.uk by Monday 1 February. 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 Bxe7! Kxe7 2 cxb6! Rxc1 3 b7 Rxf1 4 b8=Q and the queen prevailed.
Last week’s winner Jonathan Tymms, Aston Clinton, Bucks

Get Britain's best politics newsletters
Register to get The Spectator's insight and opinion straight to your inbox. You can then read two free articles each week.
Already a subscriber? Log in
Comments
Join the debate for just £1 a month
Be part of the conversation with other Spectator readers by getting your first three months for £3.
UNLOCK ACCESS Just £1 a monthAlready a subscriber? Log in