The result is this optimized level three beauty. The four pairs of identical pieces come together in a somewhat unexpected way. While not terribly difficult, it's a fun puzzle to solve and manipulate, and it displays very well. I was worried about humidity binding it up, so the fit is intentionally somewhat loose in the dry weather we have been having.

A lot of detail work went into this puzzle. Not only are the eight sapele cubes from the same plank, they were ripped from the same stick, sequentially, and kept together during the milling process to ensure that the wood tone matched up. Each piece signed and dated. ~40 copies made for sale. Ships mostly assembled.