[xsl] n-queens?

Subject: [xsl] n-queens?
From: Michael Hopwood <michael@xxxxxxxxxxx>
Date: Sat, 21 Apr 2012 15:40:09 +0100
I'm no chess OR maths expert but - surely they are not actually chess queens
if any two of the same colour can threaten each other?

The puzzle using actual chess queens, at least one of which is of the other
colour, would look quite different...

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