White to play and mate in two. This position was published in the Bonus Socius (The Good Companion), a treatise from the 13th century. Answers should be emailed to firstname.lastname@example.org by Monday 13 February. 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…Nf1! 2 Nxg7+ Kd8 3 Ne6+ Kc8 and White resigned. The checks soon run out, and Rd2-h2 will be mate.
Last week’s winner Geoff Weekes, Bath