Web Sudoku

"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."

Gideon Greenspan