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Date: Sun, 29 Mar 2015 11:12:28 +1100
Subject: Re: Sudoku solver
From: Chris Angelico <rosuav@gmail.com>
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On Sun, Mar 29, 2015 at 10:50 AM, BartC <bc@freeuk.com> wrote:
> Using the OP's algorithm, and testing with the 'hard' puzzle posted by Ian
> Kelly, I got these approximate results:
>
> Python 3.1:     1700 seconds     (normal Python interpreter)
> PyPy:           93 seconds
> C unoptimised:  17 seconds       (gcc -O0 32-bit)
> C optimised:    3.3 seconds      (gcc -O3 32-bit)
> (X:             170 seconds)

Nice stats. Any chance you can add CPython 3.4 or 3.5 to that? That's
a pretty old CPython you're using.

ChrisA