Billions of free Sudoku puzzles to play on your iPad. All the features of Web Sudoku online, plus: Play offline anytime, anywhere... and never lose your progress on a puzzle. Improve your skills - get hints with explanations. Special mode for left-handers. Unlock Extreme Sudoku, our hardest level yet! Win Game Center points and achievements. From the world's most popular Sudoku website: 4 levels of puzzle - Easy, Medium, Hard and Evil Check your progress with the 'How am I doing?' button See how your times rank against other Sudoku solvers Unlimited free printing of puzzles. Set your options to suit your game style.