This is the third design in a three design series of puzzle boxes created for IPP17 by Yoshiyuki Kotani.These are based on puzzle box designs from the Edo Period.Includes a copy of original instructions.Puzzles are kept in a pet-free room of a smoke-free home, temperature consistent between 68 and 72 F, with humidity between 45 and 50%.Buyer can choose to pay 3% PayPal fee or to send payment to "Someone you Trust"

Really interesting LEGO sculpture. Appears to float without any support. 

Helical burr!This cool burr has you twisting and turning the pieces around each other. Printed in a beautiful pink and purple ABS and then placed in an Acetone vapor bath for a smooth finish. IPP33 jury grand prize winner!The fit is not perfect, so I decided to include this description of the puzzle from Steve:The good : they are original Helical design by Derek and assembly is very easy/smooth. The bad : the underside of the outer helices appear rough though as they have been ABS finished s...

https://www.etsy.com/listing/789420621/her-key-to-the-treasure?show_sold_out_detail=1&ref=anchored_listing&frs=1Actual shipping cost will be calculated at end of auction. Buyer pays Paypal fees.

Fidget burr was an easy decision to make. A seemingly simple 3x3 cube, it's actually a five-piece interlocking burr with a level 12 solution. Three burr pieces nest inside two identical frame pieces. Disassembly of this puzzle is VERY tricky, with many false paths and dead ends.  Fidget Burr is a ton of fun and it turned out very well.This puzzle is shipped assembled.For multiple items, combined shipping is available. Simply message me once you are finished bidding and I will send an invoice.**...

1999 - 2000 Puzzle was Rodolfo Kurchans exchange puzzle at IPP 19 in London, 1999.Slide the 15 pieces in the tray to change "1999" into "2000". This takes 89 moves.The original puzzle was made in acrylic. it is included in this lot.When the originals appeared to be lost in the mail system, Rodolfo quickly created wooden emergency replacement copies to be able to participate in the exchange anyway. A wooden copy is also in this lot, including an apology & explanation sheet .

Simple cube assembly puzzle inside an oddly shaped frame. Shipping is from California, USA. I will ship worldwide; buyer to pay actual shipping costs.

Disassemble, THEN reassemble with the additional piece included.Cubicdissection description here:  https://cubicdissection.com/products/trifecta?_pos=1&_sid=a4ab51715&_ss=rPackaging is cloth bag.Buyer pays Paypal fees, if any.Buyer pays actual shipping by whatever method he/she chooses.

Assemble pieces to make a symmetric shape.Description on WoodWonders webstie:  https://woodwondersonline.com/collections/still-available/products/coming-soon-fraternal-twinsBuyer to pay Paypal fees, if any.Buyer pays actual shipping by whatever method he/she chooses.

Assemble pieces in tray such that none move.Description on WoodWonders website:  https://woodwondersonline.com/collections/gallery-1/products/stable-boyBuyer to pay Paypal fees, if any.Buyer pays actual shipping by whatever method he/she chooses.

"Trinity" puzzle, designed by Michail Toulouzas and beautifully made of Bubinga wood by Pelikan. Please also see the page of Pelikan Puzzles for details: https://www.pelikanpuzzles.eu/detail/trinity/The Puzzle is in very good condition. It is a limited edition puzzle, only 60 copies were made. This is no. 22/60.The goal is to assemble the 3 identical notched pieces into a shape that entrap the 3 wooden posts (see picture 2).Actual shipping costs will be determined after the end of the auction....

A classic "extreme" Indian trick lock that requires 9 steps to solve. This lock appears in Chris Ramsay's youtube video (https://www.youtube.com/watch?v=C_OfHyDijfo&t=1168s) but does not have the "sticking" issue when Ramsay tries to open the shackle at the end. It is identical to but originates before those here: https://www.puzzlemaster.ca/search/?category_search=&q=9 step key[Actual shipping cost will be calculated at close of auction. Buyer is responsible for Paypal fees.]

THIS WAS MY EXCHANGE PUZZLE ITS A PEN, ITS A STYLUS, AND NOW 1ST TIME EVER , ITS A PUZZLEBOX,,,,WOO HOOSEQUENTIAL DISCOVERY, FIND THE DIAMOND INSIDECENTRE BAND HAS AUSTRALIANA FAUNA INSIGNIA, NICE SOUVENIR FROM THE LAND OF OZI HAVE PLACED 2 IN, HOPEFULLY THE FINAL BID PRICE IS REASONABLE, GOOD LUCK 

Calibron Twelve Block PuzzleBackground (Extract by George Miller and Nick Baxter G4G12 Atlanta, 2016 article)"This story starts in 1933 when the manufacturing company Calibron, run by Theodore Edison, youngest son of Thomas Edison, published a Bakelite puzzle named Calibron Twelve Block Puzzle. As we will find out, this was a subtle and well thought out puzzle used in a marketing effort to spread the name of Calibron. It was presented in a rectangular box with 12 red pieces and one black s...

The Pool puzzle was Edward Horderns exchange puzzle for IPP19 in London, 1999.There are two challenges to pack 4 plots of land and a pool in a square area with overhanging boulders.The first challenge can be considered a regular packing puzzle.The second challenge is much harder and more complex. It is very elegant and rewarding when you find it!Read the full description in the second opicture.The pieces are smoots and slide very well, no force is needed to solve this puzzle! 

This lot contains 3 sheared cubes, having the same solution shape but different pieces.These were made by Y Hara in 1996 according to the accompanying paper. No further information about these puzzles is available.The 'cubes' are distorted by exactly 45 degrees in only one direction, whichis very much.Theoretically this would help the solve as several orientations are excluded for each piece.Practically this is highly confusing during the solve, and requires a very different approach than your g...

Titan's treasure lock is a Sequential Discovery meets Puzzle Lock with multiple steps. The goal is to 'find the treasure'. The solve is highly regarded by many in the puzzling community and the design has received several great reviews.This lock is in great condition with only a small tear on the booklet where a part of the key was removed which had been glued to it for shipping. Instruction booklet is included and the puzzle has been checked prior to listing and is in perfect solving condition...

Caged burr was Robert Holbrooks exchange puzzle at IPP 19 in London, 1999.This is a level 5 disassembly puzzle.And after that it is a tough assembly challenge! It will be shipped assembled in its original box.

Six segment Burr looks like a burr and sounds liek a burr, but it isn't!It is a sequentially interlocking puzzle, but not a burr as we know it. This very nicely crafted puzzle comes apart in 6 different pieces, each made of several beautiful exotic woods. The solution shape looks like 24 gorgeous wooden sticks, but on closer inspection you will see that most apparent sticks are made of different woods at each end. That is a first clue to how this puzzle actually works.The first piece that comes...

Stewart Cauffin design, made by Tom Lensch