Eek. Sudoku is not something I would have expected to be made into a video game. Then again, I'm the kind of person that likes to do my math homework in my head or on paper, and avoiding the use of a calculator as much as possible. I do sudoku the same way- bit by bit, and the fun comes from doing it yourself, and trying to read your own horrid handwriting in the little squares.
I'm crazy, I know. But if this is what it takes to get UWE back on track, I guess it works. Almost.