Place nine different digits (from 0-9) into a 3x3 grid, such that the eight sums formed by the three rows, three columns and two diagonals are consecutive numbers.
(In reply to Two solutions
While the trivial variations based on rotations and reflections were noted previously, if the two solutions noted as different are written in the following form:
we can see that one is obtained from the other by replacing each digit n by the digit 9-n, and in a different way is a 'trivial' variation.
Posted by Charlie
on 2004-06-21 00:09:56