Marble Cake from the Karakuri "cake series" puzzles. This is a small, beautifully made puzzle box with a simple trick opening mechanism.

I have had this tucked away in storage for so long I had forgotten about it. Struggled to find any details of it online.Obviously the goal is to remove the sword from the stone.

The goal is to remove the pieces from the frame and then replace them. A maze is created by the surface pieces, making this a difficult puzzle to solve.

This is an original Cubigami prototype handmade by George Miller. It was later commercialized by Recent Toys. Here is George's description:Cubigami is a folding puzzle consisting of 18 squares stitched together. The object is to fold the squares together to form one of 7 shapes. The shapes are all the ways four cubes can be stacked together. In essence there are 7 different puzzles.This puzzle was dreamed up by George Miller. However, Prof. Donald Knuth was the person who analyzed the problem an...

This puzzle looks just like another caged burr at first glance. It's only after playing with it that the genius of the design is apparent. Four identical pieces dance around two longer horizontal pieces to create a unique level 18 solution. Not only do you need to determine the position but orientation becomes important as well.

This large version of the classic Parcel Post puzzle is beautifully made by master craftsman John Devost - this is an excellent puzzle for a coffee table or living room!Pack 18 pieces into the frame; only three pairs of pieces are identical, making this quite a challenge.Three-page Solution and computer analysis from Bill Cutler included.I need to reluctantly sell some pieces from my collection to replenish puzzle funds; all puzzles are kept in a pet-free room at 68 - 73 F, and 45% - 50% humidit...

While thi is a simple 4x4 cube (no rotations even!), this design steps up the difficulty to the next level. It really is an amazing puzzle, with a unique level 14.8 solution (!!!!) which on top of being high level, has some very unintuitive and tricky movements.

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 = = = = =