http://www.macnn.com/articles/08/09/26/actsodoku.update/
ACTSodoku 1.5 adds intelligent hints, documentation
updated 05:30 pm EDT, Fri September 26, 2008
ACTSodoku update
Houdah Software has released an update to its iPhone puzzle game, ACTSudoku 1.5. This release adds intelligent or educational hints and options to turn the automatic markers on or off, use short taps, or show markers as numbers. More Sodoku documentation has been included, and settings have been integrated into the application menus.
ACTSodoku features a Sodoku generator that can create many unique games across three skill levels. The boards are all symmetrical and each puzzle guaranteed by the company to be solvable just using logic. Users can add positive or negative markers automatically or manually. ACTSodoku is available from iTunes for $3.
