Sequential Discovery, come with original box.From the Mr Puzzle Website:There are elements in the puzzle Brian would consider as much easier than 10/10. But he’s incorporated completely new ideas in this puzzle too so that always throws a spanner in the works and makes the puzzle harder.  Overall, we do think it’s a very difficult puzzle. To work it out with his intended solution we believe its definitely worthy of the 10/10 rating.The making of Abraham’s Well puzzle has been a huge under...

Amazing Cube, puzzles 1, 2, and 3. ThinkIQ. Three different puzzles; you work to get the metal piece inside the box, then try to get it out again. I solved one of the three. The other two I'm fairly sure I never opened. All in original packages.

Washington Monument, designed by Brian Young, made by Mr. Puzzle, with instructions. NOTE: All puzzles I sell will be fully insured for shipping, which also means that the declared value will be the actual sale price. 

Remove the ring from the bolt.

Fantastic sequential discovery puzzle. Certainly a reason to smile. Shipping calculated at auction end based on location Any 

Item is like new, solved a few times and stored in a safe place.  **Buyer to pay shipping cost, to be added after auction.  Please wait for final invoice before submitting payment.Description: A high quality anodized aluminum puzzle designed by Wil Strijbos!  This striking two-color dovetail design is one of three similar constructions, each of which open slightly differently and are differentiated by varying color combinations.  Although not a strainingly difficult puzzle, the toler...

Please see photos. 1 small chip and one scuff on the surface. Doesn’t affect the solve at all. Also number and signature slightly misaligned, I’m sure this could be fixed by someone better than me. Shipping calculated at auction end based on location Any 

Another excellent SD by Alan Lunsford!! 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 pay shipping and will be calculated a...

Hidden was the exchange puzzle of Pekka Leppänen at IPP25 in Finland, 2005.The goal of this puzzle is to separate the two wooden halves.This requires navigating a few hidden obstacles.The puzzle comes in original zip lock bag with original instruction and solution sheet.Even with the solution sheet this puzzle is difficult to solve!= = = = = over 70 IPP25 exchange puzzles available, see my other listings = = = = =

The acrylic maze piece must be removed, and the three key pieces are simultaneously manipulated to achieve the goal.

The Buffalo Nickel Puzzle is based on the Nine-and-a-half-Moves puzzle by M. Oskar van Deventer. It is composed of just three pieces that fit together in such a way to hide a secret compartment. Although the three pieces are flat and lie in a single plane, it takes a remarkable 9 1/2 moves to solve.Originally made by George Miller for IPP 20 in Los Angeles, I believe this was subsequently reproduced by Bits & Pieces and is what is offered here.It is basically a two dimensional three pi...

Remove the ring from the bolt.

ResQ is a unique Sequential Discovery Puzzle based on Boucher's brilliant Visitor Q. We took the original design and modified it by adding additional goals, tools, and tricks. ResQ is the result of nearly three months of prototyping and features previously unseen concepts and hardware. The brilliance of Boucher's VQ design is in the depth of possible movements and states the puzzle can be in. Visitor Q is very much like a maze; you find configurations that won't allow you to progress and mus...

Wil Strijbos made several bolt puzzles, including this design.The goal is to remove the ring (see last picture, no spoiler).This design is easily recognised because of the nipple in the end of the bolt.This is WS #8 according to Haubrichs catalog of bolt and nut puzzles.This copy has a few rusty patches, in the thread and on the pin that extends from the nut.This does not affect the puzzle fuctionality.

Wil Strijbos made several bolt puzzles, including this design.The goal is to remove the ring (see last picture, no spoiler).This design is called "low number bolt" even though it is #9 according to Haubrichs catalog of bolt and nut puzzles.During the solve, a part of the inside can be seen and is rusty, this is not visible in the assembled state and does not affect the solve.

Wil Strijbos made several bolt puzzles, including this design.The goal is to remove the ring (see last picture, no spoiler).This design is referred to as #2 according to Haubrichs catalog of bolt and nut puzzles.This is a later reproduction by Wil, produced around 2016, with one end of the pin made from brass.It has a few very minor dents on the outside, which is common for this type of puzzle (see pictures).

Unsafe Deposit and Bolt Action have been considered by the MPD to be gateway puzzles into the Sequential Discovery genre for good reasons. They're cheap and easy to get while also being excellent puzzles with tools and quirks to be discovered!An enjoyable puzzle for sure, but I need to clear out some space in my collection (not that selling these two tiny puzzles will net me much room). Also, they're being sold as a bundle, because if you have one then you need to own the other one.They also hav...

Very fun and well-made popular take apart puzzle from Jon Keegan.

Topless Box had me confounded for a VERY long time. The 'aha' moment for this one is why it is so sought after. Here is the description from the website:Topless Box by Eric Fuller was my contribution to the legendary Apothecary Puzzle Chest. Topless is an unusual challenge; with two lids and no top, how can it be opened? The solution is tricky and will surprise you. Originally released in 2012, we found strong demand with our re-release last year and decided to make one more batch for newer col...

A reproduction from a turn of the century promotional piece during the presidential election of 1896.This puzzle design is almost equal to Hanayama's cast laby puzzle, produced around 1996.The main differences are the text and the colour.It comes with a solution sheet that also describes the background of the design.The goal is to navigate the double sided maze on one of the two rings and ultimately seperate the two parts.