Exchange puzzle from Jan Grashuis and designed by Jean Bauer. An ingenious geometrical tangram about the golden ratio. New, never opened. Three types of pieces, many copies of each. They are magnetized and can be placed against the included large playing surface. Includes an interesting information sheet. - Buyer pays shipping + $3 handling for the first item and $1 handling for each item after that. Thanks for bidding!

First use the 16 white pieces to complete a square jigsaw. When that is done, turn them over to the brown side and see how much easier it is to complete wheen you have the numbers to indicate which way the pieces should be turned. You may be surprised to find that all 4 rows, 4 columns, 2 long diagonals, and corners add up to the same amount. Includes solution. - IPP23 souvenir by RGee. - Buyer pays shipping + $3 handling for the first item and $1 handling for each item after that. Thanks...

Switch the positions of the two black and two white knights, represented by pegs. Also includes Winning Numbers bonus puzzle. Includes solution. - Buyer pays shipping + $3 handling for the first item and $1 handling for each item after that. Thanks for bidding!

Start as shown in the photo, exchange the red pegs with the blue pegs. Pegs may move horizontally, vertically, or diagonally. No jumps allowed. Buyer pays shipping + $3 handling for the first item and $1 handling for each item after that. Thanks for bidding!

Two puzzles in one: start with pegs in each hole (not included), remove one , and then use jumping moves until only one remains...or...arrange the 1 thru 6 numbered pegs (not included) such that the sum of the numbers lying on each circle are the same. Also includes instructions for Magic 4 Circles and - Buyer pays shipping + $3 handling for the first item and $1 handling for each item after that. Thanks for bidding!

I'm not sure of the name of this one. The goal is presumably to switch the red and the white balls. I could not for the life of me figure out how to remove the ball that is the furthest from the shunt. Let me know if you figure out how to do it! The post with the white cap is loose, so you need to lift that rail up a bit so things line up properly. Could be solidifed with some glue. - Buyer pays shipping + $3 handling for the first item and $1 handling for each item after that. Thanks for bi...

This puzzle box was created by Akio Kamei as a Xmas present for Karakuri Club members in 2009. It is sold out and no longer made. The mechanism involves coordinated motion.This item is as new and comes with its original box.The winning bidder will pay for shipping, the cost of which will be calculated after the end of the auction. Please add 3.5% for PayPal payments.

Boston has a subway system in which there are two North-South lines crossing over two East-west lines with connections between them at some of the cross-over points. Imagine a future Boston subway system with ten North-South lines and ten East-West lines. Oskar van Deventer imagined such a system and built the most perverse transfer design possible. This rendition of his puzzle was greatly enhanced by the fertive mind of Dave Rossetti who suggested a magnetic wand to guide the intr...

Made in 2006 as an x-mas present, never again made.Like new condition.Good luck bidding.

Made in 2004 as an x-mas present, never again made.Like new condition.Good luck bidding.

Made in 2010 as an x-mas present, never again made.Like new condition.Good luck bidding.

Made in 2007, this puzzle is in like-new condition and comes with box pictured.It displays very well, and is a larger puzzle.Good luck bidding.

Made in 2006, this puzzle is in like-new condition and comes with box pictured.It displays very well.Good luck bidding.

Made in 2006, this puzzle is in like-new condition and comes with box pictured.It displays very well.Good luck bidding.

This is one of the first Kamei puzzle boxes that I purchased, but I don't remember exactly when; probably around 2003.This puzzle is in like-new condition and comes with box pictured.It displays very well.Good luck bidding.

This is the 5th in Perry McDaniel's "Petit Four" series. He first released this puzzle at IPP 30.

Tomas Linden's IPP22 Exchange puzzle - Make a capital H of the seven piecesI live in the UK and will post using Royal Mail and add only the postage price ( + insurance) at face value to the winning bid. This chain (unpacked) weighs a little over 90g

Designer: Vesa Timonen Maker: Eric Fuller Edge: 2cm Notes: Build an H-shape using the seven piece. Includes a carrying pouch. Reproduction of an IPP 22 Exchange puzzle.

Description Designer Junichi Yananose Craftsman / Manufacturer Eric Fuller Material Rosewood Item Size 3 3/4 Inches Fit N/A Condition New Damage None From the original description by Eric Fuller, who sold me this.. The puzzle is mint. I started to open it, but I realized that since i am in late 60's and have neuropathy, i couldn't put it together, so didn't try. The cellophane was slit in two plac...

This is one of my favorites. Designed by Richard Hess and Distrinuted by Bits and Pieces, this puzzle is deceptively hard. Can you pack the 3 factories and two houses in one place? Aluminum houses, brand new in box, w/packng and instructions. Discountinued,to the best of my knowledge. International shipping to be determined at the end of Auction.