this is a very nice 3-piece burr puzzle, taking 8 moves to get the first piece out.It was Eric Fuller's exchange puzzle at IPP26, and was designed by RKB...buyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicable

Box Frame. This has 4 pieces, made from bamboo, with dowels in the corners to give it some strength. There is only one of these; I designed it and made only one copy. It would be a level 17 if you took it apart orthogonally, but I think it's about a level 9 using rotations. Not super difficult, but not easy either. Doesn't go together the way you think it should, though there are at least 2 solutions using orthogonal movement.

Three Open Windows, 3 interlocking pieces with all 8 of the center cubies open (thus, you can see clear through the puzzle on all 3 axes), which was the main design constraint. Not trivial, but not too difficult. 29 copies made by Fuller.

This auction is for a group of three puzzles. One is an Obsivac Hedgehog. The fit isn't perfect. The one on the right-rear is an Arjeu CT28; there's a teeny chip out of one of the ends of the pieces, and the key-piece is a straight stick through the middle with no notches. Does NOT come with the original box.The last one is a yellow plastic star, but each of the 6 pieces is split lengthwise in 2 for a total of 12 pieces. Makes it much harder to assemble.

Caged Knot from Pelikan's shop. 3 "knot" pieces in a cage, level 13.2, the highest level of this piece configuration, according to Ishino's site. This is a really fun puzzle to play with and it's very well made (it's a spare copy...no way would I sell both!). I think there were about 80 copies of this made, originally. Naoyuki Iwase did a short run of these, too, but with an extra variant piece.

These are two variations of my Lattice puzzle that Eric cut for me during the prototype phase with different colors. The black one is smoky gray, semi-transparent, with a nice, tight fit. The red one is solid red and the fit is somewhat sloppy. These are identical to the clear Lattice puzzle I used as an exchange puzzle for IPP29, but are, to my knowledge, the only ones around in these colors (unless Eric made a couple for himself).

Stewart Coffin started making 6-piece burrs with pieces which did not follow the normal orthogonal rules. This restricts the number of ways that the pieces can be rotated and limits the number of 'assemblies'. This is Bill Cutler's level-7 notchable 6-piece burr design which did not have a unique solution. When made with the slanted pieces, it does have a unique solution.

This is Bill Cutler's 139 Burr. It's an unusual 6 piece Burr in excellent condition.

This is Peter Marineau's Piston Puzzle design. The puzzle is crafted in Cocobola by Jerry McFarland, and is currently unavailable.

This is the discontinued Burry Joint puzzle, designed by Bill Cutler and crafted by Jerry McFarland. Puzzle will ship disassembled with an original paper assembly diagram.

18 piece burr puzzle

from cubicdissection.com:I'm always excited when Tom contacts me with a new design, and this one turned out to be no exception. The "Noose" in the name refers to the fact that all six pieces are contained by a 4x4 square which constricts them like a noose. A squat rectangle with a unique level 9 solution, it is very solid until you figure out the deceptive first move. After that things get interesting, with lots of movement but only one specific disassembly. Once apart, getting it all bac...

Assemble the six plated end pieces (shaped like "L") into the six piece burr...This was IPP27 exchange puzzle for Frans de Vreugdbuyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicable

this is a wonderful puzzle by Vaclav Obsivac (vinco), with 8 pieces, and as usual some coordinate motion isrequired....buyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicable

this four piece + frame burr takes 12 moves to get the first piece outbuyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicable

Pentangle games 36 piece version of the Altekruse puzzle. Very nicely made.buyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicable

very unusual 6-piece burr puzzle... buyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicable

an early prototype burr of unknown originbuyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicableOn Feb. 08, 2010 12:47:18, the following description has been added:I described the fit as average, but on further inspection, I'd have to change it to fairly tight, if not very tight in some places...

Cutler's "Blockhead" four piece packing puzzle by John Devost. Tricky packing puzzle with some very odd angles. Beautifully made with some interesting spalted wood on the bottom. Shipping cost will be calculated after the end of the auction. Winning bidder will pay the actual postage amount plus $3 for the first item and $1 for each additional item to pay for packaging costs. Please add 3.5% for paypal payment.

This was held over from my personal collection, and is a unique wood combination (the ones sold on the website were solid in color).From Mr. Cutler's website: "I had always been interested in designing burr puzzles which are difficult to take apart. The burr shapes I had used to this point all had the same symmetry as the 6-piece burr or the 24-piece burr - mathematically there are 24 symmetries to these shapes. However, keeping all these symmetries and creating a new shape resulted in...