The numbers 1 through 9 are arranged in a 3 x 3 grid so that each number is in the grid exactly once. They are arranged such that the top row plus the middle row gives the bottom row. If the grid forms another such addition when it is rotated 90 degrees to the left, what is its composition?

(Note: The numbers don't flip, for example 6 doesn't turn into 9.)

(In reply to Some thoughts by Iain)

Nice, however I believe D and H could also be 1 or 2, due to carrying.

Posted by JT on 2004-05-12 16:02:46