This is a 3-piece vanish puzzle originally distributed by Chuck Sunshine, "The Math Magic Man."  The puzzle was designed by Chuck's sister Irene Friendman.  14 kitty cats change to 13 kitty cats.  The puzzle is in mint condition, in its original sealed plastic bag sleeve.I will ship within the US as a first class flat (likely $6.15 to $6.65, depending on postal code), and am happy to ship overseas at cost, but I cannot always guarantee that overseas packages can be insured or tracked.Thank yo...

Tricky tricky tricky, Andrew's tricky puzzle designs combined with Brian's craftsmanship - yes please!  What Brian had to say about the puzzle:"Andrew has briefly turned his attention to packing puzzles and boy was it a windfall for all puzzle enthusiasts. This is the Corner Cube from his ARCparent Series. I love packing puzzles and I hope all of these designs will eventually appear on my site at some time. Simple pieces that have to be packed into the simple box and boy this is a challenge. Be...

Pandora's Box, designed by Bob Janus, Bits and Pieces #07-6466. With solution sheet and original box.Buyer to pay actual postage, which will be calculated after the auction.

T-Party, Bits and Pieces #07-6702. With solution sheet and original box. Mfg 2004. Some mild dings along box edges.Note, case is aluminum. Color in the photo is a bit of due to local lighting.Buyer to pay actual postage, which will be calculated after the auction.

Curly Cube (metal) - Vladimir Krasnoukhov - Bits and Pieces #40125Buyer pays actual postage, calculated after auction.

Here is Rhombic Maze Burr which was designed by Derek Bosh and printed in utmost quality by Trifcho. This is the smoothest 3d printed puzzle I own right now.Speaking of the puzzle itself.. with its interchangeable maze panels and 50 challenges, this one has some serious return on investment and an absolute beast if someone wants a tough sliding maze puzzle. The difficulty can range from 37 moves to all the way upto 379 moves to solve it! And with quick reset and magnetic pins, this version is a...

Loki is one of the most famous and popular puzzle locks of the 21st century, designed by Boaz Feldman, son of the renowned Dan Feldman, inventor of the famous and iconic Danlock.  Loki is considered a very difficult puzzle, certainly Boaz's most difficult lock, and can even be considered a sequential discovery (SD) puzzle.  The goal, of course, is to open the lock without using force or any external tools.  The puzzle lock comes with its felt bag, instructions protected in a plastic bag, key,...

Noodling Box by Eric Fuller in lacewood & walnut. Hard to let this one go! More information on the website: https://cubicdissection.com/products/noodling-box?variant=40118104719426

Matchbox co-created by Frank Chambers, Peter Hajek and Ken Stevens. Exchanged by Peter in 2007.The object of the puzzle is to open the matchbox. Shipping included within the UK. International shipping is at buyer's expense.

Spirit Box, by Dee Dixon. Excellent condition.Buyer pays actual postage, calculated after auction.

"Fring's Stone" sequential discovery puzzle designed and produced by Rex Rossano Perez Please wait for final shipping costs at the end of auction before paying. No PP Fees! Paypal F&F preferred but not required.

THIS WAS MY IPP EXCHANGE PUZZLE A WHILE BACK ITS A PEN, ITS A STYLUS, AND NOW 1ST TIME EVER , ITS A PUZZLEBOX,,,,WOO HOOSEQUENTIAL DISCOVERY, FIND AND REMOVE THE DIAMOND INSIDEEXOTIC WOOD VERSION , BAMBOO SHAPED LIKE BAMBOOCENTRE BAND HAS AUSTRALIANA FAUNA INSIGNIA, NICE SOUVENIR FROM THE LAND OF OZ FREE POSTAGE COSTS, NO PAYPAL FEES 

Binary Arts & Bits and Pieces Catalog Lot x9Includes the original 1995 Binary Arts catalog - very cool and rare!Shipping will be calculated upon auction ending - buyer pays actual shipping. Ships from United States 

5 Key Puzzle, Bits and Pieces #07-7150. Also includes original box and solution sheet.Buyer pays actual postage, calculated after auction.

Knotty 6 Designed by Yavuz Demirhan and produced by Eric Fuller. So I purchased this puzzle from a well known seller on puzzle paradise. The seller claimed it to be from Eric Fuller’s personal collection. And as far as I know it is a one off. All of that said, the finish on the puzzle leads me to believe that it is Eric’s work. But you can take that for what it’s worth. I don’t have any documentation besides the sale and listing from PP. It is not listed in the archives on the Cubicdi...

Tamago Dexterity Eggs - 6 puzzles (levels 1 through 5, plus the "original" style level 4 egg), made by KendamaThese dexterity puzzles are very challenging!!  This lot includes the complete set of all 6 eggs: levels 1 through 5, as well as the "old version" of level 4, which I believe is no longer available for sale.  Only 3 of the 6 eggs were opened, the others are still in their packages.  The close up photos of the open ones are the level 4, 5, and "old" level 4 eggs.All 6 puzzles will come...

Nine Blocks Box designed by Jerry Loo and made by Eric Fuller in April 2016.A perfectly crafted miniature packing puzzle. The box and pieces are held within their outer sleeve using two magnets. The object is to pack the pieces in the box.

Ages Sequential Discovery Burr puzzle by Brian Young. I am the second owner of this puzzle and purchased it with some superficial markings on it (see pictures). Brian Young himself also replaced one small piece of the puzzle. It functions perfectly. Here is the website with more information: https://www.mrpuzzle.com.au/ages-sequential-discovery-burr-puzzle-by-brian-young/

This is a dexterity puzzle with 3 challenges. There are 13 little steel balls which to have placed into the holes at the ground, into the number 13 in the middle and at least on top of the two domino tiles with using the 2 ramps. Very funny but also very hard to do. This puzzle is very new and unused and original seald.

This lot includes two wood packing puzzles that are moderately challenging.  The first is titled "Fantastic Land" and is made by Handsman Maruwa, a Japanese brand that seems to have made several wood packing puzzles.  This puzzle is approximately 24 pieces, and the irregular pieces can be quite baffling.  There are some lovely colors on this piece; to prevent spoilers the photo doesn't show the assembled puzzle.  This puzzle comes with an extra wood piece that acts as a stand for the puzzle....