Twelve Piece Altekrusedesigned by William Altekrusecrafted by John Devostcondition: works and looks greatinfo: it's the classic 12-piece version of the Altekruse design that was patented in the 1890s

Cuckoo Nest (STC 21)designed and crafted by Stewart Coffinproduction: original Coffin puzzle from 1980condition: great, no flawsmaterials: Birchdesign info: #21 in Stewart Coffin's puzzle compendium called AP-ARTpuzzle page: https://www.puzzleworld.org/PuzzleWorld/puz/cuckoo_nest.htmdescription: Seven pieces form a small nest-shaped structure

Four-Legged Stand (STC 81B-1)designed and crafted by Stewart Coffinproduction: original Coffin puzzle from 1980condition: great, no flawsmaterials: Birchpuzzle page: https://www.puzzleworld.org/PuzzleWorld/puz/four_legged_stand.htm

This puzzle is a exchange puzzle by René Dawir for the International Puzzle Party 34 held in London, England 2014. Goal: Disassemble. Reassemble with the yellow pieces outside. Packaging: Cardboard boxPreliminary estimate of shipping costs from the Netherlands.   Netherlands: from 0 - 2 kg, approx $ 12.00   Europe 1: from 0 - 2 kg, approx $ 23.00 to Belgium, Denmark (excl. Faroe Islands and Greenland), Germany, France, (incl. Corsica and Monaco), Italy (excl. S...

EDOG 2.0 by Kelly Snache. A fun puzzle and beautiful woodworking as usual by Kelly. Solved once and reset.

Hello prospective bidders! Come and enjoy the pretty pixels of whichever puzzle is being listed for this page!After hearing about Little Bruce and how easy it is, one might think Little Kenny is, at most, only slightly harder. And one would be very, very wrong. Little Kenny is deceptively simple when seeing the pieces separated, but it's very tricky to solve. There's this sneaky, sneaky rotation which is frustrating to find and leads many solvers to give up on this tic: https://woodwondersonline...

Karakuri Door (SE-1)by Karakuri Creation Groupcondition: as new, excellent qualityproduction year: 2014item page: https://karakuri.gr.jp/en/products/se-1/info: A rare vintage puzzle box, crafted to replicate the design and mechanism of the Hakone Museum door

Very fun puzzle by Juno. Great buttery feel to the movements and not overly difficult. Non puzzlers will also enjoy this solve 

4PAC won Jury honorable mention in the puzzle design competition. Designed by Hajime Katsumoto and made by Tom Lensch. This puzzle is very clever and reminds me of the great packing puzzle designs such as Casino and 4L.Shipping cost to be calculated at auction end

Dinosaur (CO-14-1)by Tayori Kira, Yoh Kakudaproduction year: 2022condition: as new, with original box and papersproduct page: https://karakuri.gr.jp/en/products/co-14-1

A well-packaged exchange puzzle with multiple challenges. Great intro to cylindrical burrs!"Allard's Think © Sticks is a cylindrical burr set. The 15 pieces within the tin create a total of 12 different nine piece burr assemblies (and a few six piece burrs too)"I accept PayPal and Zelle. Buyer can expect to pay approximately $15 shipping domestic within the US and approximately $35 internationally, to be calculated after auction closes. Happy to combine shipping on multiple items.

Dic Sonneveld was a designer of mathematics-based puzzles.  One of his efforts resulted in "Dutch Crosses," six piece burrs that could not be solved by computer.  Perennial IPP Puzzle Exchange participant Dirk Weber took one of Dic's designs, modified it so that it would have a unique solution, and used the resulting burr for his exchange puzzle at IPP23 held in Chicago in 2003.  The pieces were manufactured by the the great Josef Pelikán prior to his most untimely passing.  The puzzle come...

MINIMA COINMAFB x 翁 CollabFrederic Boucher and I have collaborated on designing this coin release puzzle! Material: 3d-Printedsize: 103.24 x 72.16 x 18.00mmShipping:  

Rock-It Burr. Purchased from nothingyetdesigns.

This little beast requires a maximum of 35 moves among the Grooved 6 Board Burr series to remove the first piece from the assembled shape. During the solving process, you may feel that the pieces are no longer interlocking together, but none of the pieces will come apart in a simple way. A few pieces tend to partially rotate and become very unstable especially around 14 moves from the assembled shape but there seems to be no shortcut solution for the first piece using rotational movements. It ...

I bought this puzzle box direct from the Hakone Karakuri Museum in 2023 when I visited Japan. It's such a lovely puzzle box using Iwahara's great panel shifting style solution. It was released in 2017 and I bought it new. So it's not readily availablevia Karakauri themselves.This one doesn't work the same way that you may think like the other KCG sliding panel boxes (eg: Secret Boxes). It's movement has great surprises in store, and there is also an alternate solution to this puzzle box.The qual...

2023 KCG Christmas gift from Hiroshi Iwahara. I accept PayPal and Zelle. Buyer can expect to pay approximately $15 shipping domestic within the US and approximately $35 internationally, to be calculated after auction closes. Happy to combine shipping on multiple items.

2023 KCG Christmas gift from Osamu Kasho. I accept PayPal and Zelle. Buyer can expect to pay approximately $15 shipping domestic within the US and approximately $35 internationally, to be calculated after auction closes. Happy to combine shipping on multiple items.

2023 KCG Christmas gift from Hideaki Kawashima. I accept PayPal and Zelle. Buyer can expect to pay approximately $15 shipping domestic within the US and approximately $35 internationally, to be calculated after auction closes. Happy to combine shipping on multiple items.

"Dui-Mian" Pin packing puzzle by Takeyuki Endo. Pack the pieces into the frame. It was a challenging puzzle for me. The included mesurement is for the frame without the pieces. Shipping cost to be calculated at auction end