Everything about Sudoku that doesn't fit in one of the other sections


Postby eterpg » Sun Feb 05, 2006 4:16 am

I tried to find out, where is the proof of Bertram Felgenhauer or someone else for this big number of possible Sudokus. Can anyone help me?
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Joined: 04 February 2006

Postby kjellfp » Sun Feb 05, 2006 7:19 am

If you're asking for a proof by hand, it doesn't exist, and will probably never do. The number must some way or another be counted by a computer. But there are so many independent confirmations from various people using various algorithms, that the number is certainly believed to be true.

Some links:
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