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Puzzles by Maker > Mr Puzzle Limited Edition wooden puzzles > 2006 Limited Edition 3 Sets of 30 - Sold Out










This series is SOLD OUT. These pages are for historical record only.

SOLD OUT Illegal Burr wooden burr SOLD OUT Illegal Burr wooden burr N/A


Usually called Sonneveld’s Illegal Burr,  Dic Sonneveld created the original design as a 6 piece level 6-4 interlocking burr in 1994/95.

In 1996 Trevor Wood made the puzzle as a 5 piece puzzle under the name Sonneveld’s 5 Piece Burr.  Joining two of the six pieces together did not overly change the degree of difficulty of the puzzle but it does make the pieces of the puzzle stronger and this is the version we decided to make.

Dic designed the puzzle with three goals in mind:  6 pieces, pieces as simple as possible, pieces as much the same as possible.  Previous design attempts had created puzzles so complicated that no-one wanted to try them and he learned the “keep it simple” lesson very quickly.

The “illegal” move was found more or less by accident and Dic decided that because there are no “laws” in puzzle-land he would keep the design.

If you do consider that all legal moves to assemble and disassemble an interlocking burr should be linear, then you will quickly understand the type of move required to solve this puzzle.  When all pieces are in exactly the correct position the illegal move will be possible.  Just because it’s called an illegal burr does not mean you need force.  No force at all is necessary when you get all the piece is the right spot.

The illegal move referred to in the original name is still necessary to get the puzzle apart in this 5 piece version.

The puzzle and base are crafted from Papua New Guinean Snakewood.  The more vulnerable pieces of this puzzle have been reinforced with 6mm concealed wooden dowels to ensure the quality of the puzzle meets our Limited Edition standards.  Every piece of the puzzle has been heavily arrised to minimise clues about where the “illegal” move is done.

Size: 90mm x 90mm x 90mm

SOLD OUT Quantum Entanglement framed burr SOLD OUT Quantum Entanglement framed burr N/A


November 2011 one of these puzzles was resold on the Baxterweb Puzzle Auction site for USD526.00. (At the time this puzzle was released the original sale price AUD300.00 was equal to approx. USD 237.00)

The Quantum Entanglement puzzle is a framed burr enclosing 6 pieces but the puzzle has a major difference from other framed burrs we know of. The frame is made so that the two halves can be separated allowing you to place the pieces inside in the configuration of your choice; this way you can make the puzzle as hard or easy as you feel like attempting at the time. 

It could then be said that this puzzle is like having the burr puzzle equivalent of a sequential move puzzle like Rush Hour is.

If you decide to attempt the most difficult challenge, which is a level 80, it’s good to know that the frame comes apart to reset the puzzle if you get stuck half way. There are more than 1000 different challenges and solutions for this puzzle;  we have included 10 different challenges of varying levels from an interesting level 2-9 up to the level 80-1 but don’t stop there; invent your own.

This puzzle is the  “real” Quantum Entanglement, designed by renowned Singaporean puzzle inventor Goh Pit Khiam in May 2005.

We say the real Quantum Entanglement because a different design by Pit was given as an IPP26 Exchange gift by Frans de Vreugd and called Quantum Entanglement. There had been a mix up in the names and Frans’s puzzle was never intended by Pit to have this name.

Pit says he called this puzzle Quantum Entanglement because of the quantum leap in the level of the burr and the entangled state of the pieces in the frame. Many moves are made just to move one piece left by 2 steps with almost all of the other pieces back to their original positions before another piece can be removed.

The box is crafted from Tasmanian Blackwood and the pieces from Pencil Cedar.  The two halves of the box can be separated by undoing the stainless steel alumn head screws.  To assist with reassembly and strengthen, 8 hand tapped guide tubes have been custom made from brass and glued inside each corner to help line up the two halves when reassembling.

Size of box: 120mm x 120mm x 75mm

SOLD OUT Coated Burr SOLD OUT Coated Burr N/A

The original Coated Burr puzzle was deigned by Jürg von Kanel without the aid of a computer. That puzzle was made for the 18th International Puzzle Party (IPP18) puzzle exchange held in Tokyo in 1998. This puzzle has always caught Brian’s eye when he’s seen it in other people’s collections but as his first IPP was 1999, he was never been able to collect this puzzle.

At first this puzzle looks like a 3 piece interlocking burr but on closer inspection you will see it has 6 pieces. All 6 pieces are different. The puzzle had four different assemblies; 3 simple solutions and 1 complex level 5 solution. To ensure that it was assembled with the level 5 solution Jürg branded the IPP18 logo across 2 pieces; the correct solution would keep the logo intact.

Jürg had always wanted to revisit this design to see if he could find a unique high level solution. Alas - time has never allowed him to do this.   From Jurg’s plans Brian was able to rework the puzzle so that now the 3 simpler solutions have been eliminated. To solve this puzzle you will need to find either the level 5 solution that Jürg had intended, or an alternative level 3 solution. These are the only two solutions now possible.

At first Brian had intended only small changes, but on reflection he now realises he has changed half the pieces of the puzzle; two of them quite extensively. With even more time maybe a unique solution is possible sometime in the future.

The pieces that form the coating of the burr are crafted from Queensland Maple and the three inside pieces from Black Wattle.



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