Curling when all eight rocks from each team have been delivered, a total of sixteen stones. If the teams are tied at the end of the game, play continues for as many ends as may be required to break the tie. The winner is the team with the highest score after all ends have been completed (see Scoring below). A game may be conceded if considered unwinnable. International competitive games are generally ten ends, so most of the national championships that send a representative to the World Championships or Olympics also play ten ends. However, there is a movement on the
Mixed curling the Tim Hortons Brier are single-sex events or are divided into single-sex divisions. In mixed doubles curling, two players, one woman and one man, compose each team. The idea was developed by Curling Canada's Warren Hansen in 2001 to be one of four discipline variations for the introduction of the Continental Cup of Curling. The first World Mixed Doubles Championship took place in 2008. Since its inception, Switzerland has won six of the first ten titles. Russia and Hungary have won their first world curling titles in the mixed doubles championship, and New Zealand, France, Austria, and the Czech Republic