Enigma 1441: The missing link
14 April 2013
Posted by on
From New Scientist #2602, 5th May 2007
I sent in the Enigma below, and it was accepted for publication.
Unfortunately in the meantime the digit that should have been printed in the shaded square has become smudged and is illegible. However, that should not stop you doing the puzzle. Please send in the intended answer to the original puzzle: “Fill in each of the empty spaces with a non-zero digit so that the rows, columns and main diagonals add up to the totals shown”.