Boxes is a classic two-player turn-based game where players try to win the most boxes. You can play against the game, or against another real player.
Play proceeds turn-about with each user able to draw a single side of a box per turn. If the player completes a box, they win the box and gain an extra line.
Play continues until all lines have been drawn and, therefore, all boxes won.
The winner is the player with the most boxes.
On your turn, simply trace your finger along the line you want to play.