Substitute each of the capital letters in bold in this 3x3 grid by a different digit from 1 to 9 such that the sum of digits in each of the four 2x2 subgrids is equal to 9*E.

A   B   C
D   E   F
G   H   I

What will be the arrangement(s) (disregarding reflections and rotations), if keeping all the other conditions unchanged, the sum of digits in each of the four 2x2 subgrids is equal to 7*E?

(In reply to gridy totals solved by ed bottemiller)

Um?   Care to edit your re E*7?   E*7 = 21

Posted by brianjn on 2009-08-14 21:38:46