Satori Sudoku 4+

Too many bugs. Once you finish a game successfully, the continue button doesn't work, to start a new game, so you have to leave and the restart the app to play another game. Even when all the solutions are correct, it tells you you are wrong and won't continue. And I'm pretty good at sudoku, but even the easiest level can be really hard most of the time. Overall, not great, considering I paid for the app.

The clean interface of Satori Sudoko is a pleasure to work with and the various levels of difficulty will provide challenge to players of all levels. The current version (as of July 16/08) does have a bug where puzzles can occasionally be un-solvable, however this issue has been addressed by the developer and an updated version should be available within days and should not be viewed as a reason to not buy this very reasonably priced application. Recommended for players of all levels.

For the price, it is a pretty good game. The GUI is clean, and the highlighting feature makes it very easy to see patterns for a particular number. It is also easy to add and remove pencil marks. The Auto feature only shows you the available numbers for a particular cell, but does not fill in the the pencil marks like other versions do. This could be a plus or a minus depending on your preferences.

On the down side, the pencil marks are a bit small, although they are positioned in the cell so that you don't really need to read the number to know what it is. A timer would be handy so that you could see how fast you are going.

The biggest problem with this game, however, is that there are often multiple solutions to any particular game. You'll often be in a situation where there is no obvious answer, and will have to guess at a number. I've found that my guesses are always right, and that there's always two or four open cells at the very end with identical pencil marks. This mars an otherwise fine game.