PocketMoku is based on the Go-Moku board game. In this game, the objective is for each player to be the first to complete a continuous line of five stones. The stones are represented as circles and crosses. The five-in-a-row is won when there is a straight line of five or more stones, horizontal, vertical or diagonal. The game starts with the board empty, crosses making the first move. Each player takes turns placing his or her circles or crosses in empty cells on the board.