Black to play. This position is from Kasparov-Kramnik, Dos Hermanas 1996. Kramnik played 1 … Qh1+ and soon won. But he could have forced mate here. What is the key move? Answers to me at The Spectator by Tuesday 12 February 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 … Rxc3+
Last week’s winner Jay Patel, London SW18
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