White to play. This is from Carlsen-Caruana, Bilbao 2012. Black has blundered right out of the opening. How did Carlsen gain a decisive advantage? Answers to me at The Spectator by Tuesday 13 November or via email to email@example.com. 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 ... Qxc4
Last week’s winner Bernard Golding, Newcastle upon Tyne