How to Play:
Sudoku is a number puzzle. The object of the game is to complete the board so each column, row and outlined nine square block contain all the numbers from 1 to 9. This of course means that no number can appear more than once in each column, row or block.
Although you can use guesswork to find the solution the most challenging way to solve the puzzle is with logic alone.
Left mouse button or Mouse Wheel: Change the value of a square on the board.
Right mouse button (hold): - Get a better view of the square's row column and block.
Click and hold the "Check" button to mark any mistake on the board.