Mixed curling the house. In the 2015-16 season, a new rule called "power play" was added, which each team can exercise in one end per game, only when they have the hammer. Instead of positioning the rock in the house on the center line, it is placed to a position straddling the edge of the eight-foot circle, with the back edge of the stone touching the tee line. The opponent's guard stone is placed in line with the stone in the house and the hack. The power play cannot be used in an extra end. Mixed curling Mixed curling, also known as
Skip (curling) playing the fourth stones, must be able to deliver these last stones comfortably—a difficult task in that the last stones are usually the most crucial to the end. As the person throwing last stones, the skip must also have a good repertoire of shots and the ability to execute many types of shots at will. As the game progresses, the skip must assess different aspects of the game, such as timing of the rocks and characteristics of the curling sheet—and use these to choose the most optimal shots and tactics. The skip should be able to read the ice and