Prime position
The grid shown on the right is a cross-figure puzzle with one digit given as a starting point. All 11 answers are prime numbers, none of them starts with a zero, and adding the individual figures in each column gives the same sum.
What are the two numbers in the shaded regions of the grid?
WIN £15 will be awarded to the sender of the first correct answer opened on Wednesday 30 January. The Editor’s decision is final. Please send entries to Enigma 1730, Â鶹´«Ã½, Lacon House, 84 Theobald’s Road, London WC1X 8NS, or to enigma@newscientist.com (please include your postal address).
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Answer to 1724 Bingo!: The top row numbers were: 2, 31, 43, 61 and 73
The winner Brian Knight of Cambridge, UK
