White to play. Canal – NN, Simultaneous exhibition, 1934. Black has just castled queenside, in a game sometimes referred to as the ‘Peruvian Immortal’. Which move did Canal play to take advantage? Answers should be emailed to chess@spectator.co.uk by Monday 19 June. 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 Bg5! attacks e7 and threatens Nd3-f4 to trap the queen. After 1…Nxb3 2 axb3 Nd5 3 Ra4! f6 4 Rh4! and Black soon resigned. Also good were 3 Re4, or 3 Kh2 (idea g2-g4).
Last week’s winner Keith McDermott, Bradford
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