>Sudoku app for iPhone and iPad

Sudoku 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 typically 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 9×9 playing board row or column or in any of the nine 3×3 subregions of the 9×9 playing board.

Game Features:
*The game is perfect! I am really loving Sudoku. It is very addicting and fun, absolutely the best sudoku I have ever played."
*Fabulous! You turned me into a Sudoku fan hook, line and sinker
*The gameplay of Sudoku is great, very smooth.