Four square, also known as handball, squareball, blockball, boxball, champ or king's corner, is a ball game played among four players on a square court divided into quadrants. It is a popular playground game with little required equipment, almost no setup, and short rounds of play that can be ended at any time.
Four square is usually played with a rubber playground ball, a volleyball, or a tennis ball on a square court with four maximum players. The objectives of four square are to eliminate other players to achieve the highest rank.
Players may be eliminated from the court because of errors or fouls they commit. Eliminated players leave the court, the remaining players move up to the next highest square, and a new player joins the court in the lowest square. Eliminated players wait in line for their next turn.
- Failing to hit the ball into another square
- Hitting the ball out of turn
- Hitting the ball incorrectly
- Hitting the ball out of bounds
- Letting the ball drop twice on a player's own square
- Holding the ball or carrying the ball
