Segue Sudoku
Segue Sudoku is a popular puzzle, with the following features:
-> Three modes - Easy, Medium and Hard
-> Five puzzles in each mode
-> Ability to view hints, when stuck at any point
-> Ability to validate solution when puzzle is complete
Enhancements:
-> "Todays puzzle" mode - which makes a new puzzle available each day
-> Opted-in users get a notification whenever a new puzzle is available