With 3 difficulty levels, intuitive interface, and all the functions right at your fingertips, this Sudoku app is sure to be your favorite.Features:* 3 levels - easy, medium, hard* Undo and Redo* Pencil marks* Download new puzzles for free!* Auto-save - Interrupted? Exit Sudoku, and the puzzle is saved exactly as you see it!* ...and many many more!Enjoy!Try our new free games:Funny Checkers HDBubble BusterMarbles SolitaireClassic MahjongLogical MazesClassic SolitaireClassic ChessPop Candy StarPocket Candy Monster Saga