This archive page is based on original Crafty Puzzles material supplied by the site owner. Product availability and original packaging details may have changed.
Original Crafty Puzzles photographs
These photographs come from the original Crafty Puzzles archive.
Piece-count check
The archived solution shows four interlinked components, labelled A1, A2, B1 and B2. This matches the four-piece construction documented for the puzzle also known as Radius.
External identification cross-check
An independent collector record for a wooden puzzle called Radius describes a cylindrical puzzle made from four interlinked pieces, arranged as circular layers. That independently supports the name, four-piece count and general construction shown by the preserved Crafty Puzzles material.
The archived Crafty Puzzles instruction sheet remains the primary source for the solution on this page. The external record is used only as an identification cross-check.
Four-piece Radius Barrel assembly guide
- Identify the four pieces in the preserved diagram as A1, A2, B1 and B2.
- Start with A1 and B1. Slide their matching curved / channelled sections together to create the first open half of the cylinder.
- Slide A2 into the open side channel, keeping the three-piece assembly loose enough for the final movement.
- Align the remaining channel through the partly formed cylinder.
- Slide B2 through that final channel until the four pieces sit evenly and the outside forms a complete barrel / cylinder.
This wording is an original description of the preserved Crafty Puzzles four-stage geometry. Use the archive diagram below to confirm orientation.
Complete Radius Barrel solution
The preserved instruction material is shown below. No additional assembly steps have been invented where the source material does not state them.
Reveal Radius Barrel solution diagram
Select the image to open a full-screen zoomable view.
Find this or a similar puzzle
Retailer stock changes frequently, so these links search for Radius Barrel wooden puzzle 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 supplied by the site owner
- Archive record updated
- 30 September 2026
- Verification status
- Archive-preserved; not independently physically tested
- Rights handling
- Legacy Crafty Puzzles archive material. Individual third-party rights, where applicable, have not been independently re-verified. Read the site-wide policy.