Well I'll be honest with you, I'm getting a little tired of telling you all what Sudoku is, so I'm not going to anymore. Let's concentrate on why this offer is different to other Sudoku packages. And the main reason is the luxury! There are over four billion unique puzzles which should be just about enough for every train trip to and home from work for the rest of your life, and then you can bequeath the rest to your heirs. Five levels of difficulty mean you can progress from beginner to grand master. I still have huge problems getting past easy level which frustrates me.
Pencil marks can be added if you have similar problems as me, so you can check and double-check before you commit yourself. One interesting addition is the 'replay' mode which allows you to go back to any puzzle by inserting its ID. But with four billion different Sudokus I do wonder what the point of this is. For me Sudoku has got a bit boring now. If anyone has a new idea let me know. But if you're still a nine numbers in a line fan then this program is all you'll need.
