No. 828
Black to play. Erigaisi-Dubov, Tata Steel India Blitz, November 2024. Dubov chose Rg4-e4, overlooking a tactical shot that would have won the game. What was the winning move? Email answers to chess@spectator.co.uk by Monday 25 November. There is a prize of £20 for the first correct answer out of a hat. Please include a postal
