The goal is to remove as many balls as possible. You must form horizontal, vertical or diagonal lines of 5 balls or more. Each turn will add 3 new balls to the board. You are then allowed to move a ball to another place, provided that it can slide freely on the board to its new position. There are no hints or undo in Lines game. You can always see 3 balls on the side of a board. Those 3 will be added to the board after your move.