no. 561

White to play. This is from Reti-Bogolyubov, New York 1924. How did Reti conclude his attack with a fine blow? Answers to me at The Spectator by Tuesday 9 July or via email to victoria@-spectator.co.uk. 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 Nxd5

Last week’s winner James Tuohy, London SE8