Play the numbers game that’s driving everyone mad. The deceptively simple goal of this global hit is to fill in the missing numbers in a 9×9 grid. A puzzle game of logic and reasoning, Sudoku doesn’t require any calculating or special math skills; all that is needed is brains and concentration. Featuring multiple difficulty levels for players of all skills, a helpful ‘pencil-mark’ feature, and more than 10,000 different Sudoku boards, The Sudoku Challenge will quickly become your new favorite.Play The Sudoku Challenge and 900 other games for FREE with a FunPass 7-day free trial! Play all 900 games as often and as long as you want – no time limits. FunPass members also get huge discounts on game purchases. No commitments and easy online cancellation. Sign up now for unlimited play of The Sudoku Challenge and 900 other games, free.