Oskar's "Almost Cube" was the exchange puzzle of Tom Lensch at IPP25 in Finland, 2005.The goal of this 3D (dis-)assembly puzzle is to disassemble and assemble the "almost cube".The puzzle is Oskar's design, also known as "Domino Kubus".The puzzle comes in original cardboard box, with a metal pin that prevents the cube from assembling.The puzzle has no instruction or solution sheet, other that the instruction to throw away the pin.= = = = = over 70 IPP25 exchange puzzles available, see my other l...

Diagonal twins was the exchange puzzle of Brian Young at IPP25 in Finland, 2005.The goal of this puzzle is to disassemble the eleven pieces and reassemble into the twin burrs.This puzzle is based on the classic diagonal twins puzzle, 8 of the 11 pieces have the same classic piece shape.The puzzle comes in a zip lock bag with original instruction sheet (see picture 3).= = = = = over 70 IPP25 exchange puzzles available, see my other listings = = = = =

The Puzzle Sticks was designed by Mr. Puzzle, as an 8 piece variation of a 6 piece design by Edwin Wyatt in 1956.The goal of this puzzle is to separate the eight pieces, and put them together in the original shape again.According to Mr. Puzzle it can be used as a teapot stand as well.The puzzle comes in a zip lock bag, with instruction card and solution leaflet.

Secret Burr is a re-release of a puzzle I made very limited copies of in 2002. Unique in that it's difficult in both assembly and disassembly, there are two locks inside the burr that interact much like Cutler's Ball Bearing Burr. Instead of steel bearings, Secret Burr uses small wood rectangles. Precision crafted of fine hardwoods, this puzzle not only looks exotic, but has the trickiness to back up its appearance.************************************************************For multiple items, c...

Nice packing puzzle by Laszlo Molnar described by Brian on his Wood Wonders site:-This was one of two of Laszlo's entries into the IPP Design Competition and a TOP TEN Vote Getter. You know when Laszlo makes designs a packing puzzle that it will be a good one! I think this one has a difficult to find Aha! moment, making it even more satisfying. This puzzle has some rather close tolerances so it may not be for high humidity conditions.

A difficult packing puzzle with a particularly nice Aha! moment.  Read Eric's description at https://cubicdissection.com/collections/discontinued-work/products/copy-of-schneider-packing-puzzle

Keyhole to Hell was the exchange puzzle of Markus Götz at IPP25 in Finland, 2005.The goal of this puzzle is to get it in 4 different states (separated, and 3 different entangled stated) in sequence.The instruction (picture 4 & 5) shows the intended states, but not the methods to get there!This puzzle is packed in original zip lock bag with instruction sheet.= = = = = over 70 IPP25 exchange puzzles available, see my other listings = = = = =

YOU've been framed was the exchange puzzle of Peter Hajek at IPP25 in Finland, 2005.The first goal of this puzzle is to pack the three letters in the frame in any way.The second goal is to pack the leters in the frame so they clearly read "YOU"This puzzle is packed in a plastic bag with instruction sheet.= = = = = over 70 IPP25 exchange puzzles available, see my other listings = = = = =

VINCOXIV was the exchange puzzle of Mike Hawthorne at IPP25 in Finland, 2005.The goal of this 3D interlocking assembly puzzle is to create the shape shown on the instruction sheet.The puzzle consists of 7 pieces, each has 2 wooden balls connected by a wooden stick.The puzzle comes in original cardboard packaging box, with instruction and solution sheet.= = = = = over 70 IPP25 exchange puzzles available, see my other listings = = = = =

The Pig and Cow puzzles was the exchange puzzle of Dick Hess at IPP25 in Finland, 2005.The goal of this puzzle is to exchange the Pig's and Cow's Tails.This practically involves four puzzles! two times removing the tail, and two times attaching the tail to the other animal.The puzzle is has very nice and shiny parts, looking like copper and gold..It is packed in original cardboard box, with instruction sheet (picture 4, no spoiler) and solution sheet.= = = = = over 70 IPP25 exchange puzzles avai...

Two Rings was the exchange puzzle of Anatoly Kalinin at IPP25 in Finland, 2005.The goal of this puzzle is to remove the two rings, and put them back in their starting position.The puzzle comes in a zip lock bag with original instruction sheet, without solution.= = = = = over 70 IPP25 exchange puzzles available, see my other listings = = = = =

The KiePPI was the exchange puzzle of Mikko Kiviharju at IPP25 in Finland, 2005.The goal of this disentanglement puzzle is to separate the string with the wooden rings from the metal wire.The puzzle comes in original zip lock bag, with instruction/description (picture 2 3) and solution.= = = = = over 70 IPP25 exchange puzzles available, see my other listings = = = = =

Ring Pierced Face was the exchange puzzle of Yoshiyuki Kotani at IPP25 in Finland, 2005.The goal of this puzzle is to swap the rings in the right- and left- ears, keeping the other rings in the same pattern.The solution involves 65 moves.This puzzle comes in original zip lock bag with original instruction sheet.= = = = = over 70 IPP25 exchange puzzles available, see my other listings = = = = =

Perplexing Wire was the exchange puzzle of Jan de RuiterObsivac at IPP25 in Finland, 2005.The goal of this puzzle is to remove the blue string ring from the puzzle and put it back on.The other string (from wooden ring to metal frame) is purple. The difference between blue and purple is much more apparent than the picture suggests.The puzzle comes in its original zip lock bag, with with instruction sheet and solution sheet.= = = = = over 70 IPP25 exchange puzzles available, see my other listings ...

Narrow Escape was the exchange puzzle of Dirk Weber at IPP25 in Finland, 2005.The goal of this puzzle is to release the dark wooden ring (and to put it back again).There are 2 different solution sequences for this puzzle, try to find them both!This puzzle was later produced commercially by Eureka.The puzzle comes with original instruction sheet (see picture 2).= = = = = over 70 IPP25 exchange puzzles available, see my other listings = = = = =

Dan Alterman loves making giant wooden puzzle boxes that resemble real world objects: from the vending machine of Snack Brake to the toaster of Toasted, he has now created an ATM machine puzzle box appropriately titled "Life Savings." He released a very small run of this unique puzzle, making it quite rare.Combining excellent sequential discovery mechanical puzzling with a bit of cryptography, you must unlock the secrets of the puzzle to find the clues you need to decipher the code and open the...

A steampunk-themed and roughly cubic puzzle box, designed by Christophe Laronde [aka NeoKid] of NKD Puzzle. Here's NKD's listing of this puzzle.And here is a review from Boxes and Booze.~A complex-looking, intricate journey.15 moves to open, 10 of which are sequential and 5 of which are using 5 dials to set a 5-part combination, which must be devised/intuited by the solver.NKD rates the difficulty as 3/5, and I more or less agree. Although, as the assembler, I had intimate knowledge of the mecha...

A great packing puzzle where the object is to fit all 4 L shaped pieces into the basket.

Safe Japanese Puzzle Box produced as a KCG Christmas present for 2020. P-56. 

Ready for a challenge? Merlin is as difficult as it is beautiful!Kevin Sadler wrote about it in PuzzleMad:“Merlin is a serious work of art for serious puzzlers! This tremendous puzzle was designed by the genius Stephan Baumegger at the request of Dave Holt (The Metagrobologist) to accompany the Arthur and the Excalibur (also Cubic caged burrs) in the theme of T.H. White’s “Once and Future King”. This gorgeous burr consists of 8 burrsticks in 2 sets of 4 and Merlin’s wand passing throu...