from Sudobility, originally released 7th October, 2008
If you want to improve your Sudoku skills, Sudoku 401 will help you learn and play.
Sudoku 401 is a Sudoku game, a generator, a solver, and a teacher/tutor.
First, it is a serious Sudoku game.
- Puzzle generator for unlimited play. You will never see the same game tw...
Recent posts about Sudoku 401
discussion by Sidelines.