When viewed from the correct angle, the puzzle resembles a corner view of a cube. The pieces, however, are actually shaped somewhat like rhombuses with some unusual angles. The objective is to fit the pieces such that all faces are smooth and even, and they line up with the angles formed by the frame.
Made in several woods by Jean-Claude Constantin. Jean-Claude Constantin lives in Germany, where he designs and manufactures many different wood and metal puzzles, as well as magic tricks and other intellectual toys and games.