The sport of snowball fighting hits Finland for the 17th time. But unlike your typical snowball fight, this contest has rules, a proper playing area and even a referee. In a knock-out format teams of six go head to head, each provided with 90 snowballs to launch at the opposition in three manic minutes. The idea (obviously) is to hit the opposition, which eliminates them from the game. Points are awarded for every player a team has on the pitch at the end.