Line Locked

Movement is horizontal, vertical, and diagonal
Movement is made by swiping in the specified direction or using the number keys
Movement will continue in that direction until player hits an occupied square or the wall
Movement will leave a trail that goes from the start of the move to the end of the move
An occupied square is a square that has a player in it or a player's trail going through the center of it
Red is always first (turn is shown by the border of the board)
One move per turn

A player wins when the other player can't make a move on the other player's turn