This is a crossword puzzle except it does not words it uses numbers. You will need to fill the board on the right side of the screen with the numbers you collect from the left side. On the left side you can change the order of the numbers by using the arrows to the side of the board and above the board to make them scroll and change their sequence. Once you have found a column or row you can use click and drag it into place on the game board to the right. Same numbers may intersect and overlap just like in a crossword puzzle.