Sudoku - Classic 9x9 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. At start, the puzzle shows you a partially completed grid, which has a unique solution.

* 4 difficulty levels - (beginner sudoku, easy sudoku, medium sudoku, hard sudoku)
* 2 different input modes - number first of tap the tile first
* Take/Erase little notes onto the puzzle tiles
* Auto-save (Save / Resume functionality)
* Game Center Leaderboards to compete with all the players around the world!
* Highlighting the selected numbers on the puzzle
* Highlighted incorrect entry of digits

You would like to see additional features? No problem! Just review the game or send an email to [email protected] and let me know what I should add! Thanks!