Featuring host of the European televisions show "Countdown," Carol Vorderman's Sudoku is designed to offer players an extensive catalogue of Sudoku games with varying degrees of difficulty. Gamers can test their skills on over one million different puzzles found in five modes of play. Over 30 minutes of live-action video offer beginners and pros tutorials, hints, and tips from Carol Vorderman herself. All players may use the "Grid Assistance Tutor" to adjust the amount of hints provided during a single game. Players may work their way through such gameplay modes as "2-Player," "Beat the Clock," "Extra Time," and "Perfection" while attempting a variety of challenges that end with taking on Vorderman to become the "Sudoku Master." Against a friend, players may race the clock and the opponent through three activities including "Free for All," "Play and Pass 1," and "Play and Pass 2."