Each row, column and region, and each of the two main diagonals, must contain the digits from 1 to 9.
"Target in the fog"
With some French friends, we are working on the project of writing a book of sudoku.
Some grids created for this occasion will not have their place in the book, including this diagonal sudoku: a bit too hard...
Solution code: Both main diagonals, first from top left to bottom right and then from top right to bottom left.
on 11. January 2012, 12:22 by Oliver Strauß
Nice Puzzle, Thank you.
on 9. December 2010, 10:32 by Statistica
Not so hard (Three stars...) Without T&E solvable.
on 9. December 2010, 01:13 by zhergan
Very nice:) Thanks Fred...