Color coded sudoku

Advanced methods and approaches for solving Sudoku puzzles

Color coded sudoku

Postby codeshepherd » Thu Mar 13, 2008 6:32 pm

Hey guys check this website for free online color coded sudoku solver with timer, graph, pencil and 4 difficulty levels.

The same is available as facebook app at

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Joined: 13 March 2008

Postby eleven » Thu Mar 13, 2008 10:41 pm

The colors are nice, i also like to enter (a few) candidates myself like on paper.

But the 3 evil puzzles i tried were all easy, needing nothing more than locked candidates and pairs.

So when you ask for more techniques to implement: triples, x-wing, xy-wing, xyz-wing, quads, unique rectangles (types 1, 2, 4), y(w)-wing, BUG, coloring (2 strong links, 3 strong links), unique rectangle type 3, swordfish, unique rectangle type 6, multicoloring, ...
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    "Color coded sudoku"
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Postby codeshepherd » Thu Mar 13, 2008 10:49 pm

Sure, I will implement as many as I can. Probably I will also add a link to very difficult puzzles. If you have a collection of them please let me know.

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