Stones in Cups, also called Cipra's Problem 1388, is a solitaire mancala game. Closely related games are Circular Composition and Montreal Solitaire. The game was invented in 1992 by Barry Cipra, a resident of Northfield, Minnesota (USA), who proposed it as a mathematical problem in Mathematics Magazine. The game was independently solved by Kay P. Litchfield (Farmington, Utah, USA) and David Callan (University of Wisconsin, Madison, USA) in 1993. The solutions use inverse moves, that is reverse sowing. The game was also briefly described by Paul J. Campbell and Darrah P. Chavey in 1995.