This is an 4 piece choreographed motion interlocking puzzle. It was Andreas Röver's exchange puzzle for IPP 29. According to his blog (http://www.andreas-roever.de/puzzles.html):The puzzle itself is not very hard, but it is the first puzzle that I am aware of that requires multiple coordinated motion moves.

This personal copy was made with some very nice exotics, and is still in great shape.This interesting puzzle was Stewart Coffins first polyhedral AP-ART puzzle in wood. Is it made of six identical and symmetrical pieces composed of four triangular sticks joined together. Each piece is made from four different woods, made up in all six possible permutations. The object of the puzzle is to assemble the puzzle with color symmetry (each axis will have the same wood). While not a very diffi...

4-piece + frame burr puzzle. 12 moves to free all the pieces...buyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicable

This personal copy has a unique three color scheme that was unavailable on the website. This is a fantastic puzzle design. I wish I had made more copies of it! With a staggering 10,800 solutions and only 4 constructable, it is decievingly difficult to solve...it's easy to get all but one piece together, but that last piece is the trick! It is a very fun puzzle to solve and displays very nicely because of the interesting joinery on the edges. Crafting this puzzle was a challenge, which...

I've been hoarding this beautiful puzzle since it was entered in the IPP design competition. This was Jose's first design, and is a VERY well made and interesting puzzle. 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 is the SEARious Burr: a 13 piece burr with a secret lock. There are no gravity pins or magnets. It takes 13 moves to unlock the secret internal mechanism. The puzzle is in excellent condition.

6-pieces fit together into two layers. very tricky. comes without traybuyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicable

6-pieces burr with an unusual result shape... buyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicable

a really nice but not too hard 3-piece board burr from Oskar van Deventer... Beautifully made by Tom Lenschbuyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicable

this beautiful 6-piece puzzle assembles along one axis and is serially interlocking amonst the halves of thepuzzle. Very difficult.buyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicable

from cubicdissection.comWith an earlier appearance in water cut plywood by Maati Linkola as his IPP24 exchange puzzle, Squarrel is very typical of an RKB design. Six extremely simple looking pieces interlock with a single, high level unique solution to form a very creative and unconventional puzzle shape. The efficiency and creativity of Ry's designs make them a joy to produce and offer to the puzzle community! buyer is responsible for all shipping expenses and money transfer fees (includ...

8-piece interlocking block puzzle; signed, numbered, and dated.

I wish I knew exactly what this puzzle is...it is a 4x4x4 interlocking cube puzzle bought from Pelikan... it is very tight,so hard to disassemble... If there is time I will get it apart and get pictures of the pieces...buyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicable

Here is Sonneveld's Three-Piece Burr, designed by Dic Sonneveld and crafted by Tom Lensch.

this 3-piece burr + frame was a design competition entry at IPP26 in Boston, MA...It takes 13 moves to remove the first piecebuyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicable

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.