Cakefight presents Sudoku! Hand Crafted Symmetric Puzzles! Colorful and relaxing wallpapers! (press 'w' on the keypad to switch) Look for the two new themes! Intelligent Pencil mode. Take notes in squares when you're not quite certain about your answer. When you're certain on a square, we'll clear any duplicate pencil marks in the same column, row and box for you. Automatic Game Save. Quit and come back whenever you want and continue from where you left off. New Smart Hint System! When you get stuck, the app can tell you where another Sudoku player might look for a possible next move. More grid options including clearing the board and automagically filling in pencil marks for those really hard puzzles. Lots of other hidden features! :) For over 1000 more puzzles, try Cakefight's Sudoku!