Squash is game played by two players (or four players for doubles) in a closed off court. The court is surrounded by four walls and the game is played with two racquets and a small, hollow rubber ball. The aim of the game is to outscore your opponent by winning points. A point is won by playing the ball off the main wall of the court and for the ball to bounce twice on the floor before your opponent can return is back to the main wall. A point can only be won if the player who served the initial hit does this, if the receiver of the serve wins the point serve is transferred to them where they aim to win a point. This is the most common and recognized game of squash although there are a few alternatives which are mainly aimed at youngsters and beginners to the sport.