In Classic Sliding Puzzle for Windows 8 slide the numbers around until they are in numerical order from least to greatest, left to right and top to bottom.The white space is the open space that the numbered squares are moved to. To move a number, click on it. Only numbers that are immediately to the left, right, above or below the empty space can be moved. The open space should end up in the lower right hand corner when the puzzle has been solved. You can leave suggestions or tricks to solve the puzzle.