This puzzle was formerly sold by Crafty Puzzles and is retained as a free reference item. It is no longer available to purchase from this website.
Original Crafty Puzzles photographs
Higher-resolution photographs from the original Crafty Puzzles archive are shown below. Select an image to view it larger.
Try a hint before revealing the answer
Open one hint at a time to preserve some of the challenge.
Hint 1
Study the identification photograph and separate pieces with matching notch patterns.
Hint 2
Look for the key piece: it is often the only piece that can move slightly when the puzzle is complete.
Hint 3
Keep the partly assembled puzzle loose until the final locking piece is fitted.
How to use the preserved instructions
Lay the pieces out in the same orientation as the component key. Work through the numbered stages in order and keep the assembly loose until the final locking movement.
Complete Chain Block solution
The original Crafty Puzzles instruction diagram is preserved below.
Reveal the Chain Block solution diagram
Select the diagram to open a full-screen zoomable view. The original file is also available for printing.
Find this or a similar puzzle
Retailer stock changes frequently, so these links search for Chain Block rather than displaying unverified prices or availability.
Advertisement / paid links: As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, I may be compensated if you make a purchase.
The Amazon button selects UK or US from your browser region; you can switch it above. Amazon OneLink may redirect other supported countries when configured. How affiliate links support the archive.
Source and verification
- Archive source
- Original Crafty Puzzles archive material
- Information checked
- 13 June 2026
- Verification status
- Archive-preserved; not independently physically tested
- Page status
- Original Crafty Puzzles URL preserved
- Rights handling
- Legacy Crafty Puzzles archive material — This material was present on the historic Crafty Puzzles website supplied by the site owner. Individual legacy asset rights have not been independently re-verified, so it should not be reused elsewhere without separate permission. Read the site-wide policy
