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What is the definition of 'colouring' as applied to Sudoku?

 
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lac
Hooked
Hooked


Joined: 02 Jan 2006
Posts: 43
Location: Göteborg, Sweden

PostPosted: Tue Jan 03, 2006 11:56 am    Post subject: What is the definition of 'colouring' as applied to Sudoku? Reply with quote

Whatever it is, I don't think I know how to do it. I am looking at
The Four Colour Theorem and Kempe chains ... am I reading about
the correct stuff?

Thanks,
Laura
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Ruud
Site Owner
Site Owner


Joined: 30 Dec 2005
Posts: 601

PostPosted: Tue Jan 03, 2006 12:23 pm    Post subject: Reply with quote

Hi,

An explanation of colouring is not yet in my solving guide, but here is a link to a good explanation: http://www.simes.clara.co.uk/programs/sudokutechnique12.htm

There are more advanced colouring techniques, but they are not explained by Simes.

Ruud.
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