DESIGNER: Eric Fuller
RELEASE DATE: 8.29.2022
EDITION: 97 Copies Released
SIZE: 3" x 1"

Pennytentiary was our first coin release puzzle and the culmination of months of design and prototyping. To solve this sequential discovery puzzle, you must release the penny trapped inside.

Pennytentiary's complexity and depth rival that of our trickiest puzzle boxes. The solution is very challenging, with multiple "aha" moments to be found. Success relies upon the discovery and use of various tools to execute more than dozen confounding moves. No force, tapping, banging, or dexterity is required. Pennytentiary ships in an unsolved configuration.

Reviews and Blog Posts:

  • Boxes and Booze posted a fine blog review of this puzzle.
  • FiveSinatras posted a great blog review of this puzzle.
  • Allard wrote a fine review on his Puzzling Times Blog Post.
  • Josh Darrah has an excellent write up of the puzzle found here.
  • Mr. Puzzle's video review ** Spoiler Warning - this link contains the puzzle's solution** here

This puzzle contains small parts and should be kept away from children. We recommend exploring Pennytentiary on a flat surface.

Precision wood puzzles can be damaged by environmental changes. Please read the Caring for Wood Puzzles guide to ensure proper fit and operation. We recommend occasional polishing with Renaissance Wax to keep wood puzzles in top condition.

Customer Reviews

Based on 15 reviews
Kevin S.
Tough Puzzle

This is a tough one. Each time I pick it up I find something new, but nothing is obvious and it keeps you thinking.

Derek H.
Eric’s beautiful mind…

This puzzle is a difficult one and a perfect example of Eric’s beautiful mind and misdirection. If you haven’t bought something from Cubic Dissection, you’re missing out. Amazing puzzles with beyond amazing customer service. This company is full of amazing people!

Pennytentiary Torture

I have had this little bugger in my work bag for weeks and managed only a couple of teensy moves. Finally after spending some brain time. I made a breakthrough, something I probably should have thought of weeks ago. Still not done but a lot more progress. This is great puzzle. Lots of Fun and certainly not easy. Just the way I like ‘em. C

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