Strong Fortress metal interlocking puzzle

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AUD $13.00USD $

Don’t be fooled into thinking this is some kind of standard metal interlocking burr. It’s not. The shapes are very strange and can only be made with metal.

Availability In stock


The puzzle has four pieces to take apart and fit back together. But one of those pieces is a single cylinder. That makes the other three pieces very complicated shapes indeed.

It might look like a standard burr puzzle but you’ll quickly find that making it in metal makes the puzzle very robust.  It has allowed the inventor to use those very strange shapes to make a very different interesting take on an interlocking puzzle.

Brian at Mr Puzzle has played with it and it reminds him a little of Stewart Coffin’s 3 piece block puzzle but not quite as hard as that and obviously a different outer shape; but the concept of the use of unusual shapes of pieces that are difficult to visualise to interlock and assemble. We also have a four piece version of a similar Stewart Coffin interlocking design called Multigrain made in wood here at Mr Puzzle.

The only hint we’re prepared to give about this puzzle is that it will not be able to be solved in the computer program BurrTools.

This puzzle is a brand new design and patented by Zoyo (Hangzhou) Crafts & Gifts. Collect 3 different puzzles in the series. 

The puzzle is made from green anodised aluminium with a shiny silver aluminium cylinder.
Size:  48mm x 48mm x 48mm
Snuggly sitting in a rubber cut out to prevent scratching, inside a clear view lid metal tin, with a solution inside, this metal puzzle makes a great gift.

There are 4 different puzzles that you can buy in a set for big discounts.

Additional information

Weight 0.215 kg
Dimensions 6 × 9 × 9 cm


Difficulty Level

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