The game is played on a hexagonal board. Each player (which has tiles in an unique color) puts one of his hexagonal tiles on the board, adjacent to another one (not necessarily of his own color).When a player has no more tiles, he moves a tile of his own color to another position.If a group of tiles is isolated due to moving a tile, all isolated tiles (of the smallest group) return to their respective owners.The first to have 4 pieces in a straight row wins the game. In this game, each player MUST block the player to his left if this last is in a situation where he will be able to place his 4th tile in a row. - BoardGameGeek