Quadlock 1 is a 19 piece difficult to take apart flattened cube. In the past these were made with 7/8” Walnut, Mahogany and Maple square sticks. In 2011 (the version for sale here) they were made in a smaller size with .730 Walnut, Mahogany and Maple square sticks. You can view a picture of the puzzle here: http://allardspuzzlingtimes.blogspot.com/2011/07/quadlock-1.html

Set of 5 Tippee Tops with standClassic Chinnomotto. some of the designs are new and uniqueWoods are Padulk, Huon Pine, Cypress, Camphor, and CedarFree post worldwide and no Paypal fees

Trick opening box by Atushi Katagiri, his IPP30 exchange puzzle. Very nicely finished. I seem to remember a solution page but I could not find it when taking these photos. Includes original box.

Beautiful crafted wooden puzzle.Tray with seven pieces.Very slight indentation on rim of the base, see photo 2.I'm selling these to make room for new additions.(Buyer to pay for shipping and Paypal fees)

Very nice HHH puzzle from 1993.Including original box and solution.I'm selling these to make room for new additions.(Buyer to pay for shipping and Paypal fees)

A really large magic drawer / internal combustion puzzle.Including box and solution.The solution has 'Ref: 300' on it.I'm selling these to make room for new additions.(Buyer to pay for shipping and Paypal fees)

I expect this to be an older IPP exchange puzzle.No information about it though.I'm selling these to make room for new additions.(Buyer to pay for shipping and Paypal fees)

Find the Mousie hiding insideIPP bound, get it before they doGuarantee to keep you smilingHave I ever fail to dissapoint??Free post worldwide and no Paypal fees

Same as #1, just a more square outline designFree post worldwide and no Paypal fees

This was my exchange puzzle at IPP31 in Berlin. The goal is to assemble the three pieces into a "symmetrical shape". This puzzle can be sent assembled or unassembled, your preference. Definitely more difficult unassembled, as you have to figure out what the final shape is.

IPP30 exchange puzzle by George Bell. The interlocking ball octahedron comes apart into four pieces. Made using 3D printing techniques.

Four piece interlocking burr, level 4.3. Nicely finished in contrasting woods. Includes original box.

A bandaged 3x3x3 Rubiks Cube. IPP31 exchange puzzle from Yee-Dian Lee.

Stewart Coffin design #138-A. Saul Bobroff's IPP31 exchange puzzle. I had a lot of fun assembling this puzzle and just now taking it back apart (not so easy either!). I wanted to make it available to others rather than packing it in my basement.

A sixteen piece packing puzzle with two trays and an attached booklet with challenges and solutions. Very nicely made by Peter Gal. IPP31 exchange puzzle.

This 5x5 cube is a shell with a hollow interior. Inside the cube is another 2x2 cube, minus one unit. The internal cube interacts with the shell in a maddening way, interfering with what should be a straightforward disassembly. There's even dead ends and false solutions. The large hole in the shell is there so you can poke your finger in and manipulate the inner piece. VERY fun design, and pretty tricky as well.Precision made from various exotic hardwoods. Attention to detail is everywhere, from...

Basketball is a mechanical maze, based on a mechanical concept by Mark White. Through Ed Pegg's www.mathpuzzle.com page, Oskar found Mark White's CodeWorld game, see http://www.codefun.com/CodeW.htm. Mark had discovered that four pins placed in a tetrahedral fashion could smoothly slide through dodecahedrally placed grooves in a sphere. Mark used his mechanical concept for a sort-of a combinatorial game. Mark even developed some well-working prototypes. Unfortunately, after consulting several di...

Please note this is the preliminary sample of neo sliding block puzzles part 2.It does not contain all sliding puzzles of neo sliding block puzzle part 2.Shipping cost is< 500g world 5.25 $< 1kg world 10.50 $I will combine shipping cost if you have more then one puzzle.You have to pay the paypal fees.

Original Krazee links endless chain puzzleFrom way back, possibly even 1939, comes this very nice puzzle.Complete in its original box with inlay. The original solution is regrettable lost.The hinges on the back have suffered some damage.Therefore the box comes apart ones opened.Some information:http://webapp1.dlib.indiana.edu/images/item.htm?id=http://purl.dlib.indiana.edu/iudl/lilly/slocum/LL-SLO-020966I'm selling these to make room for new additions.(Buyer to pay for shipping and Paypal fees)