by evert » Sat Mar 11, 2006 1:37 pm
I stopped trying because entering values takes so much time.
However I entered 2 1's in one box - which is invalid.
After pressing solve it removed one of them. But I would like to
see some message like "you entered an invalid sudoku grid".
I like it when a solver identifies puzzles that are
-invalid
-have no solutions
-have more than 1 solutions
-have one solution but can only be obtained by guessing