There is a very succinct implementation of Algorithm X in Python that uses a variation of the Dancing Links approach. http://www.cs.mcgill.ca/~aassaf9/python/a

There is a very succinct implementation of Algorithm X in Python that uses a variation of the Dancing Links approach. http://www.cs.mcgill.ca/~aassaf9/python/algorithm_x.html http://www.cs.mcgill.ca/~aassaf9/python/algorithm_x.html http://www.cs.mcgill.ca/~aassaf9/python/sudoku.txt http://www.cs.mcgill.ca/~aassaf9/python/sudoku.txt