Super Sudoku

Super Sudoku has an intuitive and simple user interface that conveniently lets the players concentrate more on the game itself rather than figuring out how the UI works. Simplicity sure does have some good points and with this app, having a simple UI is really appreciated.

Although the UI is simple, you can still customize how it looks through changing its theme. A little play of colors wouldn’t hurt, so changing the theme once in a while may help the app look new to you each time you play.

Super Sudoku also has the folder filter feature that can select what and what not to display. You can set it to display only new puzzles or you can set to display the new, solved, and currently playing puzzles. As basic tools in most Sudoku apps, the undo and the pencil options are also available.

Features:
- Several input modes (finger-friendly, numpad in the bottom of screen etc.)
- Game time and history
- Import, Export to sdcard
- And over 10k level for you

What is sudoku? (from wikipedia)

Sudoku (数独 sūdoku?, Digit-single), originally called Number Place, is a logic-based, combinatorial number-placement puzzle. 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 (also called "boxes", "blocks", "regions", or "sub-squares") contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a unique solution.

Completed puzzles are always a type of Latin square with an additional constraint on the contents of individual regions. For example, the same single integer may not appear twice in the same row, column or in any of the nine 3×3 subregions of the 9x9 playing board.

The puzzle was popularized in 1986 by the Japanese puzzle company Nikoli, under the name Sudoku, meaning single number. It became an international hit in 2005.

Some reviews:

5/5 "Nice, Very usefully"
4/5 "Excellent interface Missing a couple of minor things that would earn it 5 stars. :-) a clear all games button. A way to delete self made puzzles if need be. And a create random puzzle when all are done. Otherwise thoroughly enjoy this well designed pass time :-)"
5/5 "Great! One of the best Sudoku games I've ever played. I really enjoy Sudoku, & this one is very well made. Simple to use