Four boys play Piggyback fight at Zhuhe Road Elementary School in Handan, North China's Hebei Province, May 28, 2014. At least four players are needed in this game. Two people form a group, with one acting as the horse and the other riding on his back. Then the fight between two teams begins: the horse-riders are trying to pull their "enemies" down the "horses" or knock them down, while the "horses" are not allowed to use their hands but only can bump against "enemy horses" with their bodies. If all the members of a team are knocked down, the game is over. [Photo/IC]