Dr. Latussek had this to say about the design.“With FERMAT I wanted to learn how triangular parts interact with one of my typical boxes. When I talked to Eric Fuller about this, I came up with the idea of dividing a cube into six triangular parts and placing this cubic dissection in one of my typical boxes as well: FERMAT MEETS FULLER was born. Pelikan Puzzles had a lot of patience with me, because it took several prototypes to implement a very exciting solution for me. Now I wish you the same...

The goal is to align the two keys at a 90 degree angle and guide them through their highly challenging interlocking paths simultaneously until their handles meet. It's much harder than it looks.

Tenyo set of packing puzzlesThese 2D packing puzzles have been packaged under different themes or labels.  These four are from the "Mystery in the Case" edition and include a weak storyline on the back of each puzzle.  The four puzzles are M's Tragedy (Tenyo No. 6 hexiamonds), Unsolvable Snow (No. 24 heptiamonds), Labyrinth (No. 8 pentominoes plus a 2x2), and Outcast Witness (No. 600 hexominoes).All four puzzles in this set are new and still sealed in plasticwrap.-----Buyer is responsible for ...

9 Layer Puzzle #7.This is the seventh puzzle in my 9 Layer series.Quite simply, can you figure out how to open it?7.5cm square and fits nicely in the palm of your hand.Made from laser MDF and acrylic, including small metal parts.Assembled by hand.Designed by Craig Lawton.Note: This puzzle will open easily when solved correctly. Excessive force is not required.Postage:UK - Royal Mail Tracked 48 - 3.45 GBPUS – International Tracked - 19.25 GBP (incl. customs & handling fees)Other destinations ...

"Where's the Dog" is a stacking/matching puzzle, exchanged at IPP23 (2003) in Chicago by Tokyo puzzle shop Torito owner Meiko Kimura.  The puzzle consists of 5 clear octagonal plastic discs, each depicting a picture of a different bird.  The see-through sheets must be stacked upon each other so that the bird parts form an image of a dog!The puzzle comes in its original mini-CD case, complete with original instruction card, all paperwork, and solution sheet, as presented at IPP23. I will ship w...

NYD by Tye Stahly (Nothing Yet Designs). Acrylic restricted 2d packing puzzle.A little about myself and the puzzles. I am a solver / collector. I try to collect various types of puzzles from various designers / makers. I rotate new ones in to the collection and like to pass along puzzles to others. All the puzzles I sell are solved at least once by me. My home is smoke free and pet free. I keep the humidity where the puzzles are between 40-50% with the average being approximately 48%.Buyer will ...

Black Box for Tertominoes is a packing puzzle designed by Hajime Katsumoto and crafted by MINE. The goal is to put five tetrominoes in the box and have the lid close completely.

Tetromino Case is a set of 3 puzzles designed by Hajime Katsumoto and MINE and crafted by MINE. The goal is to pack all the pieces into the thin box. Each box has a different drawer to restrict motion.

This is Koichi Miura's IPP design competition entry from 2023, where it picked up an Honorable Mention.Goal is to release the trapped bird from its cage.  Very clever use of space and design

A puzzle lock in the shape of a large key!This is an item from the Jean Claude Constantin puzzle company, and normally retails for more. You might be able to find it elsewhere online, so I am selling it at a decent discount.A great looking piece that will stand the test of time, no worries about wood shifting in humidity or plastic degrading!Nicely tricky, but not too difficult, a good beginner item.-Kept in a smoke-free, pet-free home.Buyer is to pay for shipping, DO NOT PAY until shipping cost...

Houston Fish Puzzle was an exchange gift from Marti Reis at IPP 41 in Houston. The goal is to pack all of the fish into the tray.

Triangle Pro 1 by Peter Heim. Metal dovetail triangle puzzle with the goal being to get it apart. This is # 1 of 4 from the series. I do have the other 3 on separate auctions, if you are interested. Each triangle is a unique solve and is not the same as any of the well known dovetail style puzzles. These were made in limited numbers and sell for over $250 on well know puzzle sites.A little about myself and the puzzles. I am a solver / collector. I try to collect various types of puzzles from var...

Triangle Pro 2 by Peter Heim. Metal dovetail triangle puzzle with the goal being to get it apart. This is # 1 of 4 from the series. I do have the other 3 on separate auctions, if you are interested. Each triangle is a unique solve and is not the same as any of the well known dovetail style puzzles. These were made in limited numbers and sell for over $250 on well know puzzle sites.A little about myself and the puzzles. I am a solver / collector. I try to collect various types of puzzles from var...

"Clothes Peg Bottle #01" is a bottle unpacking puzzle designed and produced by Wil Strijbos. The challenge is to remove the Clothes Pegs from the bottles without touching the Clothes Pegs with your fingers while Clothes Peg is inside the bottle. There are several solutions. Also please, don’t use any other external tool. Please don’t forget at the end to put all together back in the starting position. "Clothes Peg Bottle #02" is a bottle unpacking puzzle designed and produced by Wi...

A well-packaged exchange puzzle with multiple challenges. Great intro to cylindrical burrs! The puzzle comes with a printed stand to assist in assembly.

File Box No. 2 Is a well crafted and fun to solve take-apart puzzle from Yavuz Demirhan. The pieces are solid, chunky and it has a really nice fidget factor. The goal is to take the removable pieces out and to put them back in.

Up for auction is the DINILOCK 2 brain teaser designed by Diniar Namdarian and used as an exchange gift at IPP 2023 in Jerusalem. The goal is to open the lock but it is a very novel mechanism and I doubt it will be an easy task for the auction winner. The puzzle is in great condition!  After the auction ends I will pro-actively contact the buyer and provide shipping options via Deutsche Post / DHL. After the preferred way of shipping is clear, I will provide final payment amount in Euro.As an ...

This puzzle has a bit of a background...I first tried to make it about five years ago but made a mistake with the magnets and installed them incorrectly, ruining the puzzle at the last moment of production. Rookie mistake! I loved the concept and decided to revisit it with the added experience of five years putting magnets in the proper direction. Two Rings is a super unique idea; the rings must be manipulated such that they nest together. There is an easy solution and a difficult solution...I'v...

This puzzle is a exchange puzzle by George Miller for the International Puzzle Party 34 held in London, UK 2014   Goal: Assemble a cube such that the sum of the digits on the faces is 69.   Packaging: Zip lock bag_____Preliminary estimate of shipping costs from the Netherlands. Netherlands: from 0 - 2 kg, max. approx $ 12.00 Europe 1: from 0 - 2 kg, max. approx $ 23.00 to Belgium, Germany, France, (incl. Corsica and Monaco), Italy (excl. San Marino and Vatican City), Lu...

This puzzle is a exchange puzzle by Sjaak Griffioen for the International Puzzle Party 28 held in Prague, Czech Republic 2008   About Puzzle:   The complete set consists of 12 different pentangles with all possible combinations of inside and outside curved long sides. Pentangles with all identical curved long sides are excluded. Each piece “a” is the mirror image of the corresponding piece “b”. Flipping is not allowed. Always the URL must be on stop. Although ...