On 2 Sep 2007 at 1:14, Michael Reid wrote:
i didn't do anything special; started with a solved sudoku grid, then permuted rows and columns and permuted the labels 1-9 to get it.
Boy, I don't know how you managed that. I tried that approach on a dozen or more solved-grids and couldn't get it to work out [hence my inquiry]. There are a couple million ways to relabel the grid and after that I'm not sure how many different ways there would be arrange the digits on the diagonal and you can permute the blocks-of-nine, and I guess I just never hit on a combination that would work. I wonder if the way the numbers work out if you were just lucky or if I was unlucky...:o) /Bernie\ -- Bernie Cosell Fantasy Farm Fibers mailto:bernie@fantasyfarm.com Pearisburg, VA --> Too many people, too few sheep <--