`Sudoku app for iPhone and iPad

What is Sudoku? `Sudoku is a classic number game to develop intelligence, can exercise your logical ability (no need of Arithmetic.) and then improve it. More, it is a patience game.

Why choose this `Sudoku?
- Play at ANYTIME and ANYWHERE, online/offline, auto save your game progress.
- 5 different difficulties for every one.
- Many features to help you play the game conveniently such as auto note feature, autoclear notes, auto-select, autocheck errors ect.
- Especially if you are a learner, follow the game and you will be a master.
- Gamecenter supported.
Now show off sudoku your record to your friend.:)

Basic Rules:
This Sudoku has 5 levels, just choose a proper one for yourself to start the amazing journery!

The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid contains all of the digits from 1 to 9. No omission, no repeat. Only logical ability needed, regardless of math calculation. It is easy to play, a good way to excerice your brain due to the variety of the digital arrangement.