Sudoku4ever Plus – Amazon Appstore for Android – Free app of the day

Sudoku fans, harken! Challenge yourself with an unlimited number of puzzles eight difficulty levels, a world-class hint engine, game statistics, and global high scores. A special coloring mode supports color-solving techniques and auto-save allows for easy resuming. Hint functionality, should you get stuck!

Get it here
http://www.amazon.com/mobile-apps/b/ref=topnav_storetab_mas?ie=UTF8&node=2350149011
http://www.amazon.com/gp/product/B0059WTMLW?ie=UTF8&ref=mas_faad