Metro Sudoku

Are you a Sudoku fanatic who plays while commuting to work? Metro Sudoku is the only Sudoku game that understands your time. It is optimized for a short break while commuting to work or waiting for friends in a coffee shop. You don't need to quit the game because you have to get off the bus or metro anymore. Current Features: • Auto Memo • Auto saving : You won't lose your progress when you switch to another app anymore. Feel free to answer incoming phone calls from your friends and come back anytime when you are alone again. • Checkpoint: save your current progression before taking a guess. If the guess was wrong, you can always go back to last check point. • Undo/Redo • Pencil, or note feature • Select a board by time: you will be able to choose a board for the time you specified. (e.g, "give me a Sudoku game that is solvable in 15 mins") • Timed: every Sudoku board has an assigned time for an average Sudoku player in the given difficulty, so you know how much time you have • Unlimited number of Sudoku boards: no more playing same board again and again • Offline play • 5 accurate difficulties: all boards are handmade, not randomly generated. • All boards are unique and uniquely solvable: again they are handmade! • A poor slave programmer is working hard to please his master, so there will be frequent updates. :)