My One and Only - Stewart Coffin Design #178-A by John Devost

This is another cool tray puzzle that I thought I’d make a copy of, woods used for the pieces are Redheart, Yellowheart, Zebrawood, Bocote, Black Palm, Bloodwood.

Tray is made from Peruvian Walnut with Yellowheart Slipfeathers.

Here’s Stewart’s description:

“I include this seemingly mundane puzzle design to show that there is still room for discovery within even this most common category of dissecting the plane - what I call “graph paper” puzzles. The problem here was to find a combination using the five non-symmetrical pentominoes (made of five joined squares) plus one other pentomino that fit into a rectangular tray one way only. After a long search, this goal was finally achieved.  Then, using an amazing computer program called 

PuzzleSolver3D, I had the satisfaction of confirming that I had discovered the one and only combination that met all of my requirements. Try to top that if you can.”