Rated 4.8 from 2417 reviews.
Sudoku contains 5400 puzzles categorized in 3 difficultly levels. Challenge yourself and friends that how much puzzle you can solve in what time period.
Check your worldwide rank in leaderboard based on how much puzzle you have solved and challenge yourself using different Achievements in game.
Sudoku {Pega Pro} Free - was $5.99 - Thanks to @Beyond
got lots of puzzles, but i think it needs another extreme level, the hard one is still too easy to solve