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Re: Sudoku puzzle solver for Apple II
Scott Hemphill <hemphill@hemphills.net> wrote:
> If you think that one's tough, try this one. It's much harder, at least
> for my algorithm. I don't know where I got it, but I saved it under the
> filename "hints17-2". I have four files of the form "hints17-x", all
> very tough, but this one is the worst:
>
> ..1.2.7..
> .5.....9.
> ...4.....
> .8...5...
> .9.......
> ....6...2
> ..2......
> ..6.....5
> .....9.83
Not even symmetrical. (Shudder.)
Interestingly my PDA was able to verify this one much faster. I don't
have time to look at it now, but I'll get to it in a few days.
--
David Empson
dempson@actrix.gen.nz