The object of Calypso is to construct a three-in-a-row line of the same color. Each player has seven pieces, and each piece has two colors-one color on top, one on the bottom. On his/her turn a player may play a piece from his stock, reposition a piece, or flip over a piece to its second color. Each player also has a wild piece which can serve as any color or as a blocker. - BoardGameGeek