 In the second, in addition to the goal of pocketing one's secret ball, points are scored in various ways.In the instance where pills are unavailable, a cloth may be used to cover the balls, which are then chosen blindly, recorded, and replaced for play.Reportedly invented by Chicagoan Calistus "Kelly" Mulvaney in 1893, kelly pool was a popular game during the early- to mid-20th century.