Bowling is a sport in which a heavy ball is rolled down a lane to knock down pins at the other end. The number of pins knocked down determines the score for each frame. A frame is a set of two rolls, except for the tenth frame, which has three rolls.
The goal of bowling is to knock down all ten pins with as few rolls as possible. A strike is when all ten pins are knocked down with the first roll. A spare is when all ten pins are knocked down with two rolls. A gutterball is when the ball goes into the gutter on either side of the lane.
