10 move Piston Burr in Aluminium by Wil

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AUD $104.55USD $

Designed by American Peter Marineau without a computer and produced by Wil Strijbos’s Streetwise Puzzles Inc.
A very difficult level 10.3 interlocking burr puzzle. A level 10.3 burr means that 10 individual pieces must be moved in order before the first piece can be removed. Then 3 more are required to remove the second piece at which point the burr will completely disassemble.

SPECIAL NOTE:  The few burrs that I have left in stock have small machining marks in a couple of places.  I’ve taken a couple of close up shots of those marks on one of the burrs. They are made when the aluminium was machined and they don’t appear as though they will polish out.  I’ve not taken the burrs apart but I inspected them very closely and these don’t appear to be actual scratches from later handling. These are the last 3 of these burrs that I have and the photos are indicative of condition and I’m selling as is.

Availability In stock


The BurrTools computer program describes this interlocking burr as a level 9.3 puzzle; that’s because the program considers it to be one move only when two pieces are moved at the same time.
When playing with the puzzle pieces are generally moved individually, hence Peter and Wil calling this a level 10 puzzle.

Designed by American Peter Marineau without a computer and produced by Wil Strijbos’s Streetwise Puzzles Inc.
This six-piece burr was designed before Bill Cutler finished his computer program to analyse all possible six piece burr combinations (started 1974 but not completed until August 1990)  and is still the highest level unique solution burr known to have been produced without a computer. Bruce Love from New Zealand did also design a high-level burr without a computer called Love’s Dozen but that puzzle has 90 solutions.

The puzzle is made from solid polished aluminium. Very accurately made using a CNC Mill so the fit will always be perfect. They feel amazing to play with as each move clicks into place smoothly and precisely.
They are very shiny so over time you might be able to mark these puzzles with constant use but you’ll never be able to break them!  And a quick polish and they’ll be back shiny again.

Size: Each block is 22mm x 22mm x 66mm long.
Wil Strijbos does not supply solutions with his puzzles. He really believes that you will get much more puzzling enjoyment if you don’t have ready access to the solution.

High level multiple move burrs have always been a favourite of Brian’s, only overtaken by Sequential Discovery puzzles in recent times.  As a bit of fun he decided to see what would happen if you mixed the pieces from each of the 10 move Peter Marineau Burr and the 7 move Phillipe Dubois burrs. For the Burr Geeks out there, according to BurrTools there are 23,396 possible assemblies and from those there are 8,603 solvable burrs. Brian says there are some very interesting level 5 & level 4 disassemblies that are also worth puzzling over but the two highest levels are still these two original designs. Then of course, once you’ve finished mixing them there’s the puzzle of knowing which pieces went into making the two original burrs!

If you want to try some more puzzling we do have a special offer to buy both puzzles at a discounted price.


Additional information

Weight 0.400 kg
Dimensions 11 × 9.5 × 9.5 cm

Difficulty Level

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