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.