Patent US 4,339,136

A board game including a playing board having a plurality of triangular spaces delineated thereon with the spaces being arranged in concentric rows with the triangular spaces in each row being alternately arranged with the triangles having two distinctive colors and arranged to represent a geodesic dome and either 2-dimensional or 3-dimensional. Playing pieces representive of geometric shapes are provided including two sets of playing pieces of distinguishable color to enable opponents to play a game. Each set of playing pieces includes one square, three circles and three triangles in which the square playing piece can move three triangular spaces at a time, the circle can move two triangular spaces at a time and the triangle can move only one triangular space at a time with the object of the game being to block your opponents square game piece from any further movement.