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

I didn’t keep accurate records of my early puzzle builds so I can’t seem to recall having made any copies of this design.  In Stewart’s 2003 printed edition (by John Rausch) this particular puzzle was not named but now has been.

I decided I should probably make a few with a variety of very nice 3/4” cubes I had on hand.  

The tray and pieces have been lacquered and triple buffed.

Here’s a description from Stewart:

“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.

But there is more. Pleased with this lucky discovery, I generated a catalog of about 20 other symmetrical problem shapes, some with unique solution. Three are shown here, and the others are left to be rediscovered or improved upon.” (See last photo)

Shipping is as follows: 

 - Canadian tracked shipping is included

 - USA is $20  includes tracking

 - International is $20 without tracking and $40 with tracking

 - I can also combine puzzles, however shipping cost will need to be determined.

Please note that funds are in US Dollars