The commo rules of classic sudoku apply. Choose a square ad the click o the umber you wat to fill. Complete the whole 9x9 game board correctly ad pass the level. Use pecil mode to take otes or you ca also use the hit butto.

Do you think you are a sudoku master? You have 4 difficulties to choose from. Try to pass even the extremely challenging levels. Train your brain with this classic version of sudoku, improve your logic and your memory.