In the demo version you can try all the advanced functions of the program. For example:
- Easy and intuitive control
- Several types of help for the next steps of solving
- Sophisticated support of guessing
- Extended possibilities of printing when solving by hand
- Advanced support of pencil marks, including automatic placement
- Various difficulty levels and other functions...
The demo version of the program is available for free download, you can try all the advanced functions of the solving program and all 2012 tasks are available.
But this demo contains only the limited number of solved Sudoku, then, some functions will lock up. However, you can keep solving (including the possibility of printing all tasks) but only using the basic functions of the program.