The game consists in: - One 4*4 square board - 16 piece, in all the different combinations of 4 colours (red, green, yellow, blue) and 4 shapes (square, circle, triangle, star)One player is the colour-player and the other is the shape-player.Colour-player scores points for rows (of four pieces) and quads (2*2 formations of four pieces) in which the colours are all the same, or all different.Shape-player scores points in exactly the same way as the colour-player, but with shapes instead of colours.When all the 16 pieces are placed, the winner is the player with the most points. - BoardGameGeek