| Designer | : | Unnown |
| Craftsman | : | Jerry McFarland |
| Category | : | Interlocking |
| A spherical version of this puzzle was discovered in The Netherlands several years ago. Movement of the non-corner pieces allows the first corner to be removed and disassembly proceeds easily. Assembly is not as simple, though managable. The spherical version can be seen on page 63 of Jerry Slocum's Puzzles Old & New. | ||