Aluminum Pawn puzzle, designed by Marcel Gillen, Puzzle Makers International. No Box. Photocopy of instruction sheet included. Mechanism works fine. Weighs 11.4 oz. NOTE: Of the various Gillen chess pieces, the Pawn from B&P had a history of jamming internally; this one was no exception. The coin inside can get wedged between two moving surfaces and makes it nearly impossible to open. When I did finally get this one open, there was quite a bit of scoring on the aluminum surface of the intern...

Roll Up! Roll Up! An interesting puzzle from Simon Bexfield; you've got to roll the ball to the top of the spiral ramp - but to do that, first you have to solve the puzzle on the bottom of the puzzle with the two turning disks. The disk movement is fairly rough, there's a good amount of friction there, but it is moveable with a bit of wiggling. Puzzle weighs 10.3 oz.

Geometrix - Nabucho, Quirinus, and Ormazd. Three different designs of the well-known "missing square" puzzle; cramming an extra piece into an already full area. You have to turn over the tray to get the little square out. The three layouts are shown on the back of the packages, which you can see in the picture. The set of three puzzles weighs 15.5 oz.

IQ Collection - Orb, Urchin, and Periscope. Orb is a put-together, "create an orb (from the metal rings) and try to balance it on top of the pedestal. Reminiscent of the "nail" balancing puzzle. Urchin; balance the Urchin on the block of wood; little bit of a gimmick on this one. Periscope; remove the metal ring; a not-too-difficult solid disentanglement, but it looks nice and has a satisfying solution. Total weight; 1 lb 7 oz.

Rubik's Bricks, Rubik's Clock, Rubik's Triamid, all with original packaging. The Clock box is a bit crunched on one corner, with tape on the end-flaps, while the Triamid box shows medium wear, and the blister pack for the Bricks has been pulled off the cardboard backing. Instruction sheets are included with Clock and Bricks, and I don't think Triamid came with one (it's pretty simple; the instructions are on the back of the box). Total weight is 1 lb, 2 oz.

Many years ago, Eric made about a dozen of these puzzles, one of my designs which was basically a Cutler Burr turned into a cube, with a few other mods. It's a level 10 puzzle with 6 pieces. Due to some problem with the wood, extensive sanding on the puzzles (like, hours) was required to make them actually fit together; I volunteered to do this task. I only got around to sanding the last two copies a month ago, and they fit together fairly well, but not perfectly; you can see small gaps in the p...

Many years ago, Eric made about a dozen of these puzzles, one of my designs which was basically a Cutler Burr turned into a cube, with a few other mods. It's a level 10 puzzle with 6 pieces. Due to some problem with the wood, extensive sanding on the puzzles (like, hours) was required to make them actually fit together; I volunteered to do this task. I only got around to sanding the last two copies a month ago, and they fit together fairly well, but not perfectly; you can see small gaps in the p...

One of Stewart Coffin's most well-known design. Surprisingly tricky considering there are only 3 pieces. The target shape is a tetrahedron made from cubes, definitely a difficult shape to visualize.This copy was 3D printed by Shapeways, it is "pocket sized" and made from ten 13mm cubes. Each piece is dyed a different color, which makes disassembly easy, but reassembly is not any easier.I have several wood copies of this puzzle, and while they are very nice, none of them fit as well as this pu...

My IPP32 exchange puzzle. Pack the 13 L-shaped pieces into the frames on either side. The pieces can also be packed into a 4x4x4 cube and other 3D shapes. Puzzle includes an 8 page booklet of challenges. Comes in a clear plastic box, you can store the puzzle in the solved or unsolved state.The pieces are 9mm thick, this puzzle is fairly heavy for an acrylic puzzle, as I recall 100 of these puzzles weighed 33 pounds or 15 kilos.

Good condition.Binding is intact, all pages complete and undamaged.The photos here show the front and back,the inside of the front cover(where there is some writing in the upper right),the cover page (note that one often sees a blanktranslucent sheet of paper inserted before this pagewhich is not present here),and a sample page from the middle of the book.

This was Wei-Hwa Huang's IPP28 exchange puzzle. The aim is to match up five pairs among the ten pieces (two are shown in the photo) so all the pieces can nest in the cylindrical container. The problem can be interpreted in terms of a connectivity graph.Top has on it "(c) Wei-Hwa & Oskar", the latter referring to Oskar van Deventer.

This is a combination sliding piece and hidden object puzzle. Place the 8 dominoes from the bottom into the space at the top by replacing the 7 dominoes at the top.This puzzle narrowly escaped destruction in the great Colorado flood of 2013!

Assemble ten identical pieces (plus a small icosahedron) into a 5 cm diameter ball. This puzzle was 3D printed by Shapeways and dyed in 5 colors by me. The core is a Game Science D20 die (included).This puzzle was designed by Stephen Chin, based on a Wayne Daniel puzzle. In 2010, the wooden version won an award in the IPP puzzle design competition. This is the same puzzle available in my Etsy store, http://www.etsy.com/shop/polypuzzles.It is difficult to achieve a good fit with these p...

This was Dave Rossetti's IPP28 exchange gift, in Prague, 2008. His accompanying sheet says, "Snakes in a Plane is based on the Rush Hour concept by Nob Yoshigahara. By using spiral pieces, Oskar made cheating impossible. Aubrey developed a special challenge that takes as many moves to solve as to reset... Production was done as a combination of 3D-printing and laser-cutting." He describes this as a Sliding Piece Puzzle.

Near new in box this is Coast to Coast by Binary Arts.From 1995 it's still fully complete and includes the solution.The box has wear, but is in good condition considering it's nearly twenty years old.Ships worldwide from The Netherlands.Buyer pays shipping and fees.

This is the late Tom Rodgers' IPP31 (Berlin, 2011) exchange gift. "Assemble the six pieces such that each piece interlocks with another one. This puzzle has 8 symmetrical solutions, but only one that fits easily inside the jar. Find this assembly." Comes with the jar and a label which, incorrectly, claims it's from IPP "31". This is Stewart Coffin's design #247. One piece signed "247 STC 2010"

The Stickman Domino Puzzlebox ( No. 16 ) is hand crafted by artist Robert Yarger out of walnut, Monticello, and Pauduk. The dominoes, were hand crafted by artist John Devost out of holly. This puzzlebox is difficult to solve and requires approximately 50 moves to open. Stickman Domino Puzzleboxes are a limited edition puzzlebox. This particular box is No. 19 out of the limited edition set, and comes with its original instruction booklet. The Stickman Domino Puzzlebox contains...

For some reason this puzzle seems to "solve itself", even though it is a machined item and has no damage

A-MAIZ-ING - fit a bunch of sections of a corn cob in a glass. Puzzle comes unsolved. Toyo Glass, designer Nob Yoshigahara. In original box. Weighs 15 ounces with shipping box.