Welcome to the world of really big Sudoku puzzles for iPads. Sudoku Behemoth features one hundred original 20x20 logic games that will provide countless hours of mental exercise. This app has the same rules as standard Sudoku, with the exception, of course, that the applicable numbers are in the range from 1 to 20. There is a timer for each puzzle that records the completion time for that puzzle and, via Game Center, for selected puzzles you can issue challenges to your friends as well as enter your times on leaderboards.