Challenge Me: Brain Puzzles Sudoku is a challenging and entertaining version of the well loved Sudoku game. 500 different Sudoku challenges are available, providing hours of fun and lots of opportunities to exercise your mind. Anyone used to paper based versions of Sudoku will have no problem picking up the rules as they are identical in the game. The Nintendo DSTM controls are easy & intuitive to use, allowing new users of the Nintendo DSTM to quickly feel at home. For newcomers to Sudoku, Challenge Me: Brain Puzzles offers many features which will help beginners to get started and quickly master these challenging and fun puzzles. The rules of Sudoku are simple, to succeed you must place the numbers 1-9 in a 9x9 grid, with each number only appearing once in each row, column & each 3x3 mini grid. Start at a stroll on the easy setting before aiming for Olympic gold on the hard setting! Sudoku will keep you entertained whether it's for just 5 minutes on the bus or 5 hours relaxing at home. In the 'Challenge Me!' mode you can test yourself on 30 puzzles against the clock. When you have finished a report will let you know whether all that mind exercising is making you smarter! Challenge Me: Brain Puzzles - Relax, Play and Improve Your Mind!