Heads and Tails Pyramid (Farbenpyramide)

Warning! The packaging is in German but the instructions are in english.

From 15 square pieces, in different colors, 14 must be selected (the selection can take place arbitrarily). With these 14 pieces a pyramid in 3 levels must be built. However only pieces with the same color may lie together. A 12-page instruction book in 4 languages is provided.