Bowls or lawn bowls is a sport in which the objective is to roll biased balls so that they stop close to a smaller ball called ‘jack’ or ‘kitty’. It is played on a bowling green which is a flat surface and usually square area. It is normally played outdoors (although there are many indoor venues) and the outdoor surface is either natural grass or artificial turf. The green is divided into a number of rinks and also surrounded by a small ditch to catch bowls which leave the green and a ‘bank’ where markers are placed to indicate the corners and centrelines of each rink.
The game can be played as single, pairs, triples or fours. In single, each player must use four bowls. In pairs each player must use four bowls. In triples each player must use three bowls and in fours each player must use two bowls.
In the ‘Law of the sport of Bowls’ the winner in a singles game is the first player to score 21 shots. In all other disciplines (pairs, triples and fours) the winner is the team who has scored the most shots after 21 ends. Often local tournaments will play shorter games of 15 or 18 ends.