Copycatting NERVOUS work on Agate.
I already tried but it was not similar. Now it seems more similar, mainly because I studied how to use Clipper as a DLL in Grasshopper.
And this could give a puzzle like that. I used my mesh clustering and my MultipleMeshes Catmull&Clark subdivision
100 pieces (shape triangulated)
200 pieces (shape quadrangulated with RhinoWIP)
100 pieces (shape quadrangulated with RhinoWIP and no smoothing)
500 pieces, 3 flavor, not sure all pieces are solid enough
They explain very well the process.