Black to play. This is from Rodriguez-Xiong, California 2012. How does Black finish off? Answers to me at The Spectator by Tuesday 16 June or via email to victoria@spectator.co.uk or by fax on 020 7681 3773. The winner will be the first correct answer out of a hat, and each week I am offering a prize of £20. Please include a postal address and allow six weeks for prize delivery.

Last week’s solution 1 … h5+

Last week’s winner Jonathan Tymms, Wilstone, Herts