Sudoku is a number-placement puzzle based on logic. The objective is to fill a grid of squares so that each column, each row, and each of the nine 3 x 3 blocks contains the digits from 1 to 9.
A touch screen provides a very natural platform for a Sudoku game application, because the input data is limited: In each input square, the player enters a single digit from 1 to 9. However, due to the structure of the game, the player must be able to see the entire grid at once, which restricts the size of the input fields.
The Sudoku game has been implemented with two technologies:
In this section: