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
Bul (game) played with one stone for each team member. Players on a team rotate who rolls the bul and moves a stone. The number of stones used by each player can be changed for a shorter or longer game as necessary. Players can also agree before the game that only a certain number of stones can leave the base and be in play at any one time (an example being that players can only have two stones in play outside of the base). The game length can be changed by having less spaces between the two bases. Verbeeck mentioned twenty-five dividing