Gregory came up to me at IPP this summer and let me play with a couple 3D printed versions and I was hooked. These look like traditional six piece burrs but are nothing like them. The angled internal geometry allows for some outrageous movements. They are very confusing and wonderfully different. This is the second set of puzzles, and likely the last (the remaining designs being simply unsuited for construction in wood).

Crenel is the fifth of the NOS designs and is difficult to disassemble and assemble. It has extremely unusual movements that will have you muttering under your breath when you take it apart, and exclaming admiration for Gregory's genius when you reassemble. The peculiar back and forth gate movements are extraordinary.

The construction of this puzzle is excellent. Production was very challenging, requiring the creation of several new jigs and techniques. Fit is very good, a little loose to account for dry conditions during the period in which it was made.

62 copies made for sale, each signed and dated. This puzzle is shipped assembled.