Black to play. Adhiban-Warmerdam, Tata Steel Challengers, 2023. Adhiban’s last move, Nd4-e6, prepared a series of checks, starting with Nxg7+. Warmerdam’s response was a rude awakening. What did he play? Email answers to chess@spectator.co.uk by Monday 6 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 Qc4+ Rxc4 (or White collects the rook on c4) 2 Rxd8+ and then mate.
Last week’s winner Jeremy Forgan, Middlesbrough
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