White to play. This position is a variation from Carlsen-Karjakin, Monaco 2011. Although White is a rook up he only has one move to ensure victory. What is it?
Answers to me at The Spectator by Tuesday 25 October or via email to firstname.lastname@example.org. 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 c8Q
Last week’s winner Arawn Charters, Bristol