Do you like solving puzzles and competing against friends? You'll love Sudoku Free for Kindle! Experience classic sudoku like never before! High quality, fun cards with multiple difficulties make this app impossible to put down. This free app features notes, undo/redo, hints, statistics, 3 different difficulties, GameCircle Leaderboard and Achievements, and an easy to use interface that beginners and experts can both enjoy! Download now and see why sudoku is one of the most popular games in the world! ***Now available for Fire Phone!