Sudoku Master

Sudoku is an easy to learn logic-based number placement puzzle and not a math-based puzzle.
The objective is to fill a 9x9 grid of squares with digits so that each column, each row, and each of the nine 3x3 sub-grids that compose the grid contains all of the digits from 1 to 9.

A little interesting point is that there are 6,670,903,752,021,072,936,960 possible Sudoku puzzles. So we can play umpteen Sudokus a day and there will still be new ones.

Features:
★ Different difficulties
★ Hundreds of puzzles for each difficulty
★ Auto-save your progress for each puzzle
★ Unlimited undo
★ Add notes
★ Clear all notes
★ Set & undo to checkpoint
★ Clean interface and smooth controls
★ Create your own puzzle
★ Puzzle import / export
★ Phones and tablets support
★ Portrait and Landscape Views
★ Support multiple languages
★ Super lightweight, suitable for all phones

Game options:
★ Highlight wrong values
★ Highlight completed numbers
★ Show number totals
★ Auto fill in notes
★ Three different input method: Popup, Single Number, NumPad
★ Auto move to right cell upon number input
★ Show time
★ Themes
★ Highlight cell on touch

Suggestions are welcome, mail to o3creator@gmail.com

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Thanks for playing