'Drangles''' is a pure strategy game for the GRYB Game System. The goal of the game is to form a GRYB on a single quadrangle. Each turn, you make two moves (one chip twice or two chips once each): Valid moves are introducing a new chip to the root node of the ''tree'', moving a chip ''down'' a level to a node of the ''lower'' quadrangle, or moving ''sideways'' to an adjacent node on its current quadrangle. In all cases, the chip's final resting space must be unoccupied in order for it to move there.'Drangles''' was published in the instructions for GRYB Game System 2.0. - BoardGameGeek