 Four of the children stand on one of the corners of the square, while the fifth player is designated "it" and stands in the middle of the square.The four corner players then attempt to trade places without being tagged by the player who is "it", or without vacating a corner long enough for the player who is "it" being able to stand in the vacant corner.If a corner player is tagged or stranded without a free corner to stand in, they become "it".