Sudoprime II
The grid shows a cross-figure with two digits given as a start. All 11 two- and three-digit answers are prime and none has a leading zero; no digit appears more than once in any row, column or either of the two long diagonals; no even digit appears more than once anywhere.
What are the numbers in the shaded regions?
Include your full postal address and telephone number, and a reference (issue, page number, title) to articles. We reserve the right to edit letters. Reed Business Information reserves the right to use any submissions sent to the letters column of Â鶹´«Ã½ magazine, in any other format.
WIN £15 will be awarded to the sender of the first correct answer opened on Wednesday 24 July. The Editor’s decision is final. Please send entries to Enigma 1755, Â鶹´«Ã½, Lacon House, 84 Theobald’s Road, London WC1X 8NS, or to enigma@newscientist.com (please include your postal address).
Advertisement
Answer to 1749 Genotype: GENETICS is 25950365
The winner Len Nunn of Bexley, Kent, UK
