Think Thrice

Think Thrice consists of 25 tiles, each with three attributes: the foreground color (red, yellow, or blue); the background color (green, violet, or orange); and the shape of the picture on the tile (sun, moon, or star). Each player begins the game with four tiles. On his turn, a player either draws a tile from the bag or plays one or more tiles to the playing area to form one or more triads. A triad is a set of three tiles in which either an attribute is the same on all three tiles or it is different on all three tiles, as in the game of Set. In making a play, a player may link his tiles to existing ones in the playing area or keep them separate. He also may re-arrange previously played tiles, provided that every tile in the playing area remains part of a triad. The first player to run out of tiles wins.