Sudoku solver

[Abhiram R]

On Mar 26, 2015 5:39 AM, "Ian Kelly" <ian.g.kelly at gmail.com> wrote:
>

> "Hard" for a human doesn't necessarily mean "hard" for a programmatic
> solver in this case. Try your solver on this one:
>
> $ cat sudoku2.dat
> . . . 7 . . . . .
> 1 . . . . . . . .
> . . . 4 3 . 2 . .
> . . . . . . . . 6
> . . . 5 . 9 . . .
> . . . . . . 4 1 8
> . . . . 8 1 . . .
> . . 2 . . . . 5 .
> . 4 . . . . 3 . .
>
> I tried the first puzzle you posted, and it took about a second. I
> then started running it on this one before I started typing up this
> post, and it hasn't finished yet.

Sooooo... Is it done yet? And if yes, how long did it take?
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