PYRAMID PUZZLE The invention provides a puzzle embodied in a 3-sided regularly shaped pyramid comprising eleven smaller 3-sided pyramides and four small octaeder shaped bodies, which smaller pieces are connected to a string forming an endless chain. The complexity of the puzzle is achieved by coloring the side planes of the smaller parts in various colors and connecting the smaller pieces in a certain sequence to a string. The solution of the puzzle is obtained by placing the smaller parts of puzzle in such a way that the large pyramid is formed and the side planes of the large pyramid are uniformly colored by the smaller pieces. A preferred embodiment is given in figure 1 and 2 comprising the 15 smaller pieces of figure 3 and 4 placed in a continuous string as shown in figure 5.