Not only a puzzle creator and solver, but a great tutor to help you quickly master sudoku techniques.It generates five different difficulty levels of puzzles. The powerful hint system can help you quickly master two main sudoku skills, namely "Direct Elimination Techniques" and "Candidates Elimination Technique". You will definitely benefit from it. The game provides undo and redo functions as well, so we can clearly know every move you make. And you can fill numbers into the puzzle both by mouse and by keyboard. What's more, iSuDoKu has a very nice and impressive user interface, and it is resizable. So don't miss it.

The license of this software is Free Trial Software, the price is $11.95, you can free download and get a free trial.