[Android] Free: Sudoku Ultimate (Was $3.49) @ Google Play

Sudoku Ultimate is free for a limited time. No ads.

Sudoku is one of the most popular classic brain game. This brain sudoku game requires less storage(2MB) and low power consumption. About 4000 Sudoku puzzles to explore. Sudoku refreshes your brain and is really fun. This offline sudoku game comes in four difficulty levels:
Beginner(for beginners)
Student(for some what experienced)
Master(for skilled players)
Expert(for sudoku lovers)
Try Beginner level for complete beginners. Choose Student and Master sudoku levels to improve your skills. Try expert sudoku is for advanced players. It will give your mind a real workout!
The goal of a sudoku puzzle is to fill the cells with numbers from 1 to 9 so that each number is only used once in each row, each column, and each small square.

via TimtamTinTin at OzBargain