Subject: [xsl] Sudoku solver - complete|
From: "andrew welch" <andrew.j.welch@xxxxxxxxx>
Date: Tue, 2 May 2006 15:27:06 +0100
For those of you interested in this I've now finished performance tuning my Sudoku solution.
I'm quite pleased with it - boards that were taking 15mins+ now take less than a few seconds. The most pleasing aspect is the way it selects the allowed values for a cell - it's much better at detecting when there's only one possible value, and the way it works through the board.
I'm also making much more use of subsequence() - several seconds were shaved off after constructing new sequences from existings sequences using this function.
I'm satisfied that it's complete now, but if anyone can improve it or break it, please let me know
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