Saturday Special – Zero Killer TwoDoku

Posted on September 20, 2008 By djape 2 Comments Free sample puzzles / Killer Sudoku

Here is very difficult Killer Sudoku puzzle. There are two Zero Killer Sudoku puzzles overlapping each other in the TwoDoku format.

The difficulty is rated IQ. What do you think?

Zero Killer Twodoku for Saturday, September 20, 2008

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