White to play. Abdusattorov–Durarbayli, Sochi 2021. The endgame looks tricky, but White found a way to force a quick mate. What did he play? Email answers to email@example.com by Monday 16 August. 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 Qh7+ Nxh7 2 Bxh7+ Kh8 3 Rxf8+ Qg8 4 Rxg8 mate
Last week’s winner Gordon Ironside, Wallington, Surrey