The wooden pieces must be removed from the frame then returned to their original position. The process is made more challenging by the presence of the metal pegs. In order to put the wooden pieces back in the frame, they must be in the correct position and orientation such that the holes line up with the pegs.
Made in three woods and stainless steel by Jean-Claude Constantin. Jean-Claude Constantin lives in Germany, where he designs and manufactures many different types of wood and metal puzzles, as well as magic tricks.