No. 752
White to play. Shirov-Wedberg, Lundin Memorial, Stockholm 1990. Black has just played Rh6-h5, attacking the e5 pawn, but Shirov found a powerful response. What did he play? Answers should be emailed to chess@spectator.co.uk by Monday 22 May. There is a prize of £20 for the first correct answer out of a hat. Please include a