Chess puzzle

No. 645

20 March 2021

9:00 AM

20 March 2021

9:00 AM

Black to play. Kosteniuk–Koneru, Skolkovo Grand Prix, 2019. The obvious 1…Kg3 fails to 2 Rg5+ Kf4 3 Rg4+. Losing the pawn looks inevitable, but Koneru found the only move to save herself. What did she play? Answers should be emailed to chess@spectator.co.uk by 22 March. 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 Qh3! If 1…Ka6 2 Qf1#, or 1…Ka4 2 Bc6# or 1…Kc4 2 Be2#
Last week’s winner Mark Duncan, Bromley, Kent

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