Sudo Sudoku: Sudo Sudoku Puzzle Game, can generate endless number of Sudoku Puzzles in 3 diffrent levels, you can print the puzzles. And you can also generate runnable Sudokus that you can email to your friends. Sudo Sudoku has a easy windows interface.
What is new in version 1.6:
Added "give me a hint" functionallity, more bug fix
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