Sudoku Uno provides an almost infinite number of Sudoku games categorized in 3 levels of difficulty. Its powerful engine is also able to provide intelligent hints: the engine may explain the reasoning behind the hint.
- Three levels of difficulty: easy, medium, hard
- Difficulty levels are determined by techniques to master, not by number of givens
- Unlimited number of Sudoku games
- Green & red
- Sudoko solving techniques are available from the Help menu
- OS X 10.6.6 or later