reorder the boxes until you reach the position with number 1 top left and the other numbers to follow from left to right e from top to bottom leaving the last blank you can choose either the classic 4 by 4 square (game of the standard 15) or any rectangle with both sides 3 through 10. you can either click or drag to drag the card. it always drags itself into empty space. free and single play for now multiplayer mode will be added later at the end of the game the system tells the number of moves and the time taken.
