A solid Sudoku game, though it doesn't have very much. Randomly generating puzzles is a good idea, though, and being able to make your own is fun. Not having the ability to add in multiple possible numbers as personal notes was a little frustrating, though. It would be great to be able to share puzzles you made, or have some built-in puzzles to provide deliberate challenge. The look was polished though not exactly my taste, but it is well done. Keep it up!