July 13, 2007
One of the applications I’ve been loving on my Treo before I got an iPhone was Sudoku by Andrew Gregory. So when Arcadiusz came out with Sudoku for the iPhone, I rejoiced.

For a web application, it’s quite well implemented. It’s major lack of feature is persistence (which of course is no fault of Arcadiusz) — if something happens and Safari has to reload the page you’ve just lost the game you were playing. I would love to see pencilmarks, Red/Blue coloring, hints, and all the features that Andrew put into his version, but realistically that’s tough to do in an application that has to be downloaded each time you want to play it.

The only problem I had with Sudoku was one time I ended up with an unsolvable puzzle. I checked it against a solver and verified that it was indeed unsolvable. Obviously if I’m going to be spending time doing a puzzle I’d like it to be solvable.

All in all I’d give Sudoku for the iPhone a 3 out of 5. If this ever becomes a built-in application it would gain a point instantly.