Large algorithm issue -- 5x5 grid, need to fit 5 queens plus some squares

[Fredrik Lundh]

totalgeekdom at gmail.com wrote:

> The problem I'm trying to solve is.
> There is a 5x5 grid.
> You need to fit 5 queens on the board such that when placed there are
> three spots left that are not threatened by the queen.

when you're done with your homework (?), you can compare it with
Guido's solution:

    http://svn.python.org/view/python/trunk/Demo/scripts/queens.py

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