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
Curling Colzium, in the form of a low dam creating a shallow pool some in size. The International Olympic Committee recognises the Royal Caledonian Curling Club (founded as the Grand Caledonian Curling Club in 1838) as developing the first official rules for the sport. In the early history of curling, the playing stones were simply flat-bottomed stones from rivers or fields, which lacked a handle and were of inconsistent size, shape and smoothness. Some early stones had holes for a finger and the thumb, akin to ten-pin bowling balls. Unlike today, the thrower had little control over the 'curl' or velocity