Black to play. Ilfeld & Vachier-Lagrave–Picot & McShane. Pro-Biz Cup, London 2019. My move. White threatens checkmate with Qc4-g8, so I exchanged rooks on f1 to divert the queen. We won in the end, but what would have been a stronger move? Answers to ‘Chess’ at The Spectator by Tuesday 7 January or via email to victoria@-spectator.co.uk.