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I have selected two 4-digit perfect squares, neither of which has a leading zero. Their sum is the reverse of one of the squares.

What are my two perfect squares?

WIN £15 will be awarded to the sender of the first correct answer opened on Wednesday 27 March. The Editor’s decision is final. Please send entries to Enigma 1738, New ÐÓ°ÉÔ­´´, Lacon House, 84 Theobald’s Road, London WC1X 8NS, or to enigma@newscientist.com (please include your postal address).

Answer to 1732 Cache up front: 960 miles

The winner Mike Waterman of Camberley, Surrey, UK