Click on the thumb to play Sudoku Game

The objective of the game is to fill all the blank squares in a game with the correct numbers.

There are three very simple constraints to follow. In a 9 by 9 square Sudoku game:

Every row of 9 numbers must include all digits 1 through 9 in any order
Every column of 9 numbers must include all digits 1 through 9 in any order.
Every 3 by 3 subsection of the 9 by 9 square must include all digits 1 through 9.