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.

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