Sudoku Instructions: The Sudoku grid is made up of nine large boxes, each of which contain nine small squares. Put one number in each of the small squares until each of the boxes have only one of each of the numbers 1 thru 9. When the puzzle is correctly solved each column reaching from the top to the bottom of the entire puzzle will also have only one of each number 1 thru 9. The rows from the right to the left side of the entire puzzle will also have only one of each of the 9 numbers. The computer will not let you put in a number if that number is already present in the same box, or the same row, or the same column. Good luck!