Not only do his varied puzzle box designs show his math background, but they are all made entirely of wood. There are no nails or fasteners; just intricately-fitted wood and some glue.

Depending on its shape, design and coloring, a 1,000-piece puzzle should take somewhere between four and 12 hours to complete—so plan on taking breaks along the way.

The puzzle pieces have more complex behavior; rather than tiling with a flip, they rotate 60 degrees and “zip the seams of the map,” she explained. Ms. Rosenkrantz finds the infinity factor ...

The design of this 1,000-piece puzzle has a similar look and feel to some of the original illustrations from J.R.R Tolkien himself. The green and gold colors also go really well together with the ...