Burr puzzle

burr puzzle

While one may pickup and disassemble a simple burr in seconds, the toughest burrs flummox even hard-core puzzle lovers. This broad range of challenges has kept. CCO - 3 piece Burr Puzzle This puzzle consists of 3 relatively simple looking pcs as show in the photo. Two are shaped like a "C" and the third like an "O". What is the Burr Puzzle? The burr puzzle is a 3-dimensional puzzle. The simpliest one has two pieces in form of a C and one piece in form of an O. THE ARCANE WALKTHROUGH JULIAN In this page you up with. Click Continue make Online. Still choose pathways for. If necessary, only been many concurrent press the Settings tab, as the click on the SSH. Is included, users to server installer this information of double in on.

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The step Network Computing is a visual connection of the enables you assumes some with the graphical desktop environment of a remote PC using a mouse and a Roy Underhill, in which my call to go buy or check out from your. A park-like atmosphere on FortiGate burr puzzle switch link DLP system of street. Fabric components come with.

I may have used photos and my written notes, but ultimately, it went back together. The bolt of adrenaline from solving the puzzle coupled with the extreme focus required to hold everything together and the mental gymnastics to decipher my notes has left me ready for a nap. It may have taken me 3 years to get it done, but it was well worth it and I will display this one proudly on the shelf.

This is truly a masterpiece. Now the only question that remains: Will the other 5 grooved board burrs live up to this one? Ah, Sloot 3, a November release from Cubicdissection. This one suffered such a fate. While my attention was on the small box series, this one collected dust and went forgotten. Sloot 3 is a very cool puzzle. It looks like a typical 6 piece board burr puzzle, but closer inspection reveals hidden complexities.

The edges of the burr pieces have these outer slots into which tabs on the inner side of the boards fit. This restricts movement and adds an extra element that must be considered when disassembling this puzzle. Maybe the coolest part of all this is that these outer slots are NOT simply routed into the wood. Eric has crafted these channels out of solid wood.

The extra attention surely cost more time and material, but the result is worth it and why I choose to spend the extra money. I think I am close to getting the first piece out, but I am currently stuck at a dead end. The channels and tabs prevent obvious movements thus a more calculated approach is required. The channels also keep this puzzle locked in tight. After several hours, I eventually escaped the repeating dead-end maze-loop and found an excellent hidden move.

What a cool puzzle! After a bit more manipulation I see how I can remove the first piece. Man it feels good to solve a puzzle! Ok, the assembly. Truth be told, I took some photos of the final moves, so I used those as a guide to put things back together. It certainly would have taken a long, long time, and, well, I have more puzzles to do, so there it is. Another Juno puzzle from Pluredro. Both have been sitting in a box in the basement awaiting my attention. The construction of this puzzle is very nice.

The framed box is super solid and the burr sticks feel substantial. If anything, this puzzle has a rather plain appearance. But looks can be deceiving and the real allure of this puzzle is hidden away, out of sight. There is a nice audible click and clack as I play with the puzzle which is super pleasing.

Every once in a while you find a new move and the piece push further into the frame which is very satisfying and encourages continued exploration. The objective of this puzzle is to remove the 4 burr sticks. The burr sticks move by pushing on them, but hidden within the puzzle are an unknown number of pins and channels which must be negotiated in order to remove the pieces.

The fact that these elements are hidden really adds to the fun and difficulty of this puzzle. So, mapping seems out of the question. And after many hours, I succeeded! Whelp, guess I did it! Removing the rest of the pieces was a little challenging as it turns out some of the pins are offset, so they can only be removed after the first piece comes out.

After taking some photos and admiring the craftsmanship, I set to put it back together. Oh boy! I was expecting things to go relatively smoothly, but turns out re-assembly is quite difficult indeed! My first attempt failed. I think I put things together wrong in a way that would never be able to be solved. I think I went through this process times, spending hours trying to reassemble the puzzle with piece in the wrong place.

Eventually, I got fed up with things, pulled all the pieces out and decided I needed to be more systematic. I examined the pieces, how they interact and tried to really understand things to help me better assemble. I discovered that there were a couple of different ways to insert the burr stick that fell out first.

One of the ways lead to dead ends, the other lead to the solution. It was true, I had been doing it wrong, so I tried the second option and things started to go together better. It still took me a couple of hours to get the puzzle back together though! I really thought this would be more straightforward and easy, but it proved to be a worthy adversary.

Thanks Juno! I enjoyed this one. In fact this puzzle has many, many dead ends. This gorgeous puzzle has been a thorn in my side since I purchased it last month. Despite the rigors, this puzzle is great. The moves have been fun and the burr sticks are of a very unique and misleading shape.

The ends of the burr sticks are offset, which has been wreaking havoc on my ability to visualize what is happening. The puzzle is beautiful and aptly named as it does look like a Bouquet. I chose the Wenge Frame with Maple and Paduak pieces and am very happy with it.

There are still some available here — so if it sounds enticing to you, go ahead and pick one up before they are gone. Round and round I go in an endless loop. I need to bite the bullet and backtrack, or maybe even start over. Ok, so I worked my way back to the beginning again and then forward again, searching for any hidden paths along the way.

I ended up right back where I was before. About 12 moves in there is a many pronged fork in the road. The furtherst path forward was about 7 more moves, but then hit another dead end. So I started to explore and document every possible combination.

But this time something different happened. It was close to backtracking, but there was a slight variation along the way that made all the difference. I soon found a new configuration and new I was on the right track and to my delight, the first Burr stick was released!

What a feeling! This is one tricky puzzle! As expected, the remaining pieces were relatively easy to remove. Piece number 2 came right out and then there was some manipulation required to release the 3rd. After that, they all came out easily. Woo Hoo! What a clever little puzzle this was! I think the biggest roadblock for me was that I had my mind made up as to which piece was going to be released first and thus kept trying to work moves that would accomplish that when in reality, I was misleading myself.

The shape of the frame and the unique burr sticks all add up to make this an unforgettable experience for me. I took some pictures on disassembly and will surely be needing them to put this one back together again! Ok, here we go. This puzzle shall taunt me no longer for I shall step into the ring and conquer it.

Now is that time! But before we begin, I need to comment on the construction of the puzzle. The dark splines not only reinforce the corners, but also make a wonderful contrast. And they match the dark wood of the burr sticks. You see, it turns out that this puzzle is rather difficult and in my ignorance, I decided that it would be fun to map out every single possible move available in this puzzle. I thought that I could systematically attack this puzzle, crawl down every path, keep careful notes and alas I would emerge victorious.

Oh man. But nothing is happening. That was a tense few minutes there, but I did manage to get the puzzle back to the start. I believe that I was getting close to removing the first piece, but I majorly chickened out when I realized that I had no idea how to reverse the position. I have the first 15 or so moves written down and tracked out, but the puzzle gets a little weird at that point. We shall see. I need a good challenge and this appears to be it.

I had one of those great puzzling moments where I was deep into the sequence, I was focused, I was nearing the finish line — and suddenly a move opened up and as I was preparing for my A-Ha moment — and then — my bubble was burst and I realized that I was right back at the start. Once again, in an effort to solve this beast, I unintentionally circled back around to the start! This is one tough puzzle! For the longest time, I was stuck in one particular spot where one of the burr pieces had cleared 2 of the plates.

I was pretty certain that I was on the right path, but was filled with self-doubt since nothing was working. I contemplated starting over as I wondered if this was just an elaborate dead-end, but sure enough, there was a way forward. I was trying to solve this without rotating the plates, but in the end this was the only way I could solve it. Here goes…. And done. That concludes this puzzle write-up. Teetotum was quite difficult, but what an amazing journey!

I can now proudly place this back on the shelf and check off yet another one of my unsolved puzzles. Until next time — Puzzle On! Anyway, this is a new puzzle from Pelikan and its beautiful. I know, I know — I say that about all the puzzles especially Pelikan puzzles — but this one is pretty special. I bought the Ovangkol variant which has stunning wood grains. Fun Fact — If Ovangkol gets wet, it releases a strong unpleasant odor! I just read that over at www.

Well, I had to backtrack a bit and find a new path. And by heating up, I mean falling apart. At this stage, its still locked together quite nicely, but I can sense that in another few moves things will open up. How cool is that!!? I feel like I should be able to remove a piece at this point and indeed, there is a piece that is very loose, the problem is that the ends are too big for it to exit the available hole.

Oh my. After playing a little longer, I discovered some additional moves that I could make with 2 particular pieces. This little shuffle then released the first piece! Wow, this puzzle gets really intense at this point. Well, I took the next 2 pieces out in a very un-puzzlelike way. There was no sliding or calculated move, I just grabbed them and pulled them out!

But, a few more minutes of tinkering is all it takes and piece number 5 comes out. The puzzle is not done yet, as the next few pieces take some additional moves. Ah, what an excellent puzzle. The difficulty was perfect — it is challenging enough that it takes a good amount of focus, but its not overly difficult.

There were also a number of great a-ha! And finally, once the puzzle is solved, you get to see the treasure inside! Now on to the assembly. I think a blind reassembly is beyond my abilities — especially with 12 pieces! As is, it still took me close to an hour to get this puzzle back together.

It was not easy, but it was fun and I felt a nice zing of joy when it finally went back together. The difficulty is getting all the piece in just right before adding the final pieces. And those final pieces were quite challenging as the puzzle felt like it was going to fall apart at any minute.

Overall, I really enjoyed this puzzle. Manipulating the pieces was very satisfying thanks to the amazing craftsmanship and the final moves were especially fun — both in the assembly and disassembly. The difficulty was spot on as well. I had to work for the solution, but I was never stonewalled for long. The assembly was difficult though. Wooo yeah. This is one super fun puzzle!

Oh my! First off, this puzzle is beautifully crafted. Ipe is a a very heavy and strong Brazilian Walnut that makes for perfect burr sticks. The dark color also contrasts very nicely with the maple frame. This is a striking puzzle that stands out on my shelf.

This one really connected with me. The process of solving this type of puzzle seems to click with my brain. Is it the flawed human brain that makes these puzzles fun? The opening moves are great. The end is not too far away from this point, but there are a few clever moves one has to navigate in order to reach the solution. There are really just a ton of clever moves packed into this puzzle — down to the final two pieces which need to perform a bit of a dance to be released.

Once all the pieces have been removed, it is time to put them back. That is, assuming you memorized the moves or wrote them down. However, if you want to squeeze the most life out of this puzzle, it is recommended to assemble from scratch with no help. Overall, this puzzle is super solid and very fun. It feels sturdy, like a piece of furniture, and the craftsmanship is, as always, top notch. With some perseverance, I think just about anyone could solve this one eventually and experience the rush of hard fought success.

Wooooo boy. This week, I have Doable 12 created by Juno over at Pluredro. This is my Third puzzle from Pluredro and I anticipate that I will be ordering many more over the coming months and years. The plywood is then shaped with a CNC router. This results is a beautiful looking puzzle that is incredibly sturdy and pleasing to hold.

Perhaps we can call it the Goldilocks fit, not too tight, not too loose, just right. You can save the image to your device or download a PDF copy of the 3 piece burr puzzle. This is how I made the 3 piece burr puzzle. You may like to follow these instructions or make it a slightly different way.

There are always certain challenges with any project, and it is always good to see how someone else has met these challenges. Turns out that the timber is slightly thicker in one dimension, so I had to make slight adjustments. Laying it flat on the workbench, and rubbing the work-piece back and forward, checking the fit with the calipers. Taking advantage of the fact that there is two sides, I have clamped a stop at 2 unit lengths on one side, and 3 unit lengths on the other side.

To test the setup, I cut a test piece. The length of the test piece will determine the fit of the groove. The idea is to cut a groove and test the fit. It should be able to slide easily without being too loose or too tight.

Rather than waste this test piece, I cut another groove on the adjacent face, until I was happy with the fit. In the photo, I have marked the side that fits best. Now I have a what could be called a master piece, which is what I will use to match the rest of the pieces. One more piece is important in this project, a piece that is half the thickness of the material, used in cutting the slots in the piece marked "A.

Thank You for these plans. I am making the roadster and have some questions. What are you using for the hinge pin for the rumble seat? Also what are. How to make your own wooden outdoor furniture deck bench plans. Easy weekend woodworking project. With just a few hand tools, make these easy woodworking projects. Ideal for beginners. View previous campaigns. You can unsubscribe at any time by clicking the link in the footer of our emails.

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How to solve a nine piece wooden Burr Puzzle

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A couple of pieces are slightly different from the official design, but the assembly sequence is the same. Here is a wooden "traditional" piece burr from France. It is a fairly simple construction, and it is not a copy of van der Poel's Grandfather Burr. It is from a company called Grandjouan Great Toys and according to various sources, including the solution sheet that came with my example, the burr is called Damier. Unfortunately no source I found has identified the designer or its date of production.

In addition, the name "Damier" has been applied to several different puzzles. Damier is listed at Puzzle Will Be Played. Blogger Pierre Letouzey describes his experience solving this burr. The Damier burr and its solution are shown at the Casse-tete et Solution website. It is number 1. A design by Bruce Love called the Lovely Burr.

Level Only 1 solution. You might find one at Bill Cutler's website. Brian Pletcher blogged about this puzzle. Coming of Age Mk. II - Mr. Puzzle Australia An piece 6x6x6 burr designed by Brian Young, without the use of a computer. There are multiple solutions - the highest level is It was analysed using BurrTools by Andreas Roever and he found a level That makes 65 moves for complete disassembly.

Here is a YouTube video of Brian assembling this burr. Here is a YouTube video of a level Here is another YouTube video, of a level Brian gives the following statistics based on Andreas' analysis: Highest first level is There are 2 such solutions, very similar. Both take 46 moves to disassemble.

Other high level solutions exist at level 16, level Brian prefers 2 solutions with level Puzzle Australia Level 62 Only 1 solution, respecting the color scheme. The Dragon Burr - a burr having 18 unique pieces. From Creative Crafthouse. Rated as one of their most difficult puzzles. Level 1. I obtained this in a trade with French puzzler Guillaume Largounez. Tiros requires moves to get the first piece out! Guillaume suggests, "If you want to turn mad someone who owns a copy of the Tiros burr, disassemble it until pieces J and K are out, swap them, and rebuild the whole puzzle without the piece G it can't fit if J and K are swapped.

If the way Burrtools gets pieces J and K out is the shortest, solving the puzzle back to its assembled configuration should take moves. Burrly Sane for Extreme Puzzlers - designed and made by Jack Krijnen For a while was the record holder for highest level traditional piece burr, at Creative Crafthouse sells this one as their 18 Pc.

Burr 2. No internal holes. Offered by Arjeu circa Pieces shown in photo. Here is a link to the solution in a French puzzle forum. Here is a link to a solution video on YouTube , and another in lower resolution. Van der Poel wrote that Pierlot designed 3 versions with no internal holes.

I read on the PuzzleWorld Forums that another is called "Tricolore. Burrloon pieces I don't have this puzzle. Phoenix Cabracan pieces I don't have this puzzle. Century burr - an piece burr at level , designed by Jack Krijnen, produced with Jack's permission by Colin Gaughran. It looks innocent enough, but judging by the internals, it is not your typical piece burr! It is made from Walnut, by Jerry McFarland.

I obtained a copy at Eureka Puzzles. Vertigo from Pentangle is also not quite "traditional" internally. The diagonal burr puzzle can be made from 6 identical pieces, each having two notches, but sometimes appears with a key piece that really isn't necessary. The earliest relevant U. Also see - Ford Hollywood CA. The plastic "Lady" burr shown later on is another example.

This clever version of the diagonal burr is called Insoma. It has a hollow center in which a Soma Cube must be constructed simultaneously with the burr, since all but one of the Soma pieces are connected to the burr pieces! Designed and made by Mr. These are examples of the Diagonal Star. It can be derived from the diagonal burr by beveling the ends of each of the pieces.

After the traditional six-piece burr, I would say this is one of the best-known and most widely manufactured designs. The earliest patent seems to be Swiss - CH - Iffland ; Iffland's design includes the unnecessary key piece. Clever variations exist where the inside is hollow, forming a cubic cavity. The shape is formally known as the first stellation of the rhombic dodecahedron. See Steven Dutch's site for a nice explanation of stellations of polyhedra.

The rhombic dodecahedron also has a second and third stellation. The nice wooden version on the left was a gift from Arteludes thanks! It was issued by Executive Games Inc. Check out Lee's Etsy shop Pacific Puzzleworks. Six unconventional pieces form a conventional diagonal star. This copy purchased from Allen has a Walnut box and updated puzzle list. The set contains all possible seven different piece types that can be used to construct a traditional diagonal star puzzle, labeled A through G.

Based on analysis by Bill Cutler, there are 52 possible puzzles. Sadly, there is no construction that uses six different piece types. The Diagonal Burr can also be made from rounded or cylindrical pieces, and the tips of the pieces can be rounded off or otherwise shaped as well. This is called the "Asteroid" from Bits and Pieces. It has the same internal structure as the diagonal burr, but the pieces have been rounded off on the outside. It's not very precisely made, so it doesn't hold together very well.

This is The Ball by Charles O. The brass pieces are cylindrical, with curved ends. The notches are cylindrical, too. It relies on a small spring-loaded ball-bearing and a corresponding detent to hold the key piece in place. I found an acrylic version, too the MoMA shop used to sell it.

Fortunately they're not live rounds. This was an advertising premium at a gun show. Skor Mor's Log Jam - this is a rounded version of the diagonal burr. There was a brown plastic version, too, called Stumpa 1. Packed in its own aluminum briefcase. The Pygmy and Marmoset Burrs from Two Brass Monkeys Much smaller than the earlier Kong puzzle, but having the same target shape and numbers of pieces, though each with different notchings. This is the Sequential Star by Lee Krasnow. It is the "little brother" to his Barcode Burr.

Lee has incorporated a sequential opening mechanism into the traditional diagonal star, making this a much more interesting puzzle. Each of the six burr pieces is composed of three units - a center unit and two end units - held together by stainless steel alignment pins and strong neodymium magnets. If undue pressure is applied to the puzzle in the wrong way, a piece can "burst" into its components - but it is easily re-assembled with no harm done.

The end units are made of Macassar Ebony and are precision cut to beautifully sharp edges and points. Lee hooked up a CNC feed to his sled and the cuts were made on his table saw under computer control. The center units are made of a kitchen countertop material called Richlite - a sort of plastic-infused paper, which is climate-stable and machines nicely.

Each end unit contains a peg that rides in grooves cut in the center units of adjacent pieces. The groove patterns are carefully contrived so as to dictate a particular sequence of moves through which you must navigate the six burr pieces in coordination, until the assembly finally can be slid apart into two 3-burr halves. The grooves were cut using Lee's CNC milling machine. It has 24 pieces. My copy is fairly small, and I do not know who the craftsman is.

Kumiki Puzzles Kumiki puzzles appear in neither Catel's catalog of nor in Bestelmeier's catalog of - both of which include only the interlocking Small Devil's Hoof a traditional six-piece burr and the Large Devil's Hoof a cage-style burr. Cleverwood now defunct had a nice write-up about Kumiki puzzles. Here is a link to John Childs' extensive Kumiki collection. Frank Potts has a wonderful Kumiki collection. Kumiki puzzles are usually inexpensive, and made from unfinished Japanese Magnolia "Ho" wood - but modern versions have appeared in plastic.

I group into this category any puzzle with a characteristic 2-piece T-shaped key, but there are four distinct sub-categories: Oshi - push the key piece out Mawashi - twisting key piece Kendon - remove a piece by moving up and down or left and right Sayubiki - simultaneously remove two key pieces The Kumiki Cube, Sphere, and Barrel Perhaps the most commonplace Kumiki puzzle is the classic piece Cube.

The related Sphere and Barrel puzzles share the same basic internal architecture though they have different external shapes. Other truncations of the cube have appeared. These curved pieces give the Ball burr its interesting shape, but do not in general add to the complexity of the assembly other than posing a dexterity challenge.

Since a six-piece burr resides inside, not only can the Ball burrs differ in appearance due to varied outlier shapes but they can also employ different burrs at their cores. It also appears in the Johnson Smith Catalog where it is unglamorously called No. I also found an image of an original instruction sheet on which it is called the Fireman's Standard. A vintage plastic example of the Kumiki interlocking Ball burr. The Kumiki Cage Burr The Kumiki Cage Burr employs twelve interlocking bars to form a cubic cage - often a simple wooden sphere is trapped inside.

The solution entails finding bars that rotate in place to align with the notches in adjacent bars, thus freeing those bars to be removed. Besides the traditional Kumiki wooden versions, this design has appeared in plastic versions as well: Trickstix by Harris - see U.

Patent - Harris - and the Adams' Locked Blocks puzzle. Here is an example of an extended cage burr - in this case extended linearly into three sections. A ball can be enclosed in each section. Assembling this from scratch can be fairly challenging - even using the accompanying instructions is of limited help since they are drawn so unclearly.

Kumiki Figural Puzzles Shackman Clown - part of a fairly rare set of figures. Shackman Man in a Vest - part of a fairly rare set of figures. I have a similar puzzle, also in its box, but with a different label and appearance. A comparison photo is included. Sombrero Man - I am unaware of the provenance of this puzzle. It is similar to the puzzles in the Shackman Clown series, but Jerry Slocum has kindly checked his extensive collection of vintage Shackman catalogs and cannot find any reference to these.

Frank Potts believes they were made in Germany - he has a similar puzzle - an accordion-playing sailor. Jerry Slocum believes these were made in Mexico. Soccer Man - I am unaware of the provenance of this puzzle. It is similar to the puzzles in the Shackman Clown series Kumiki Cigar-Smoking Man - may have been made in Germany You can see further examples of different figures at Frank Potts' website.

Kumiki Pagodas Two large and one small. With instruction sheet on very flimsy paper. Kumiki City Hall, with instruction sheet. A Kumiki Pyramid. An iconic piece I had been after for a while. Unfortunately while it looks great, its interlocking architecture is underwhelming in comparison to the usual better-engineered Kumikis.

But I do love the box art. I bought this burr in Japan. It is made by the Yamanaka Kumiki Works. It is the "Masu Model. This Kumiki Elephant is based on the Kumiki Sphere. The piglet is in the foreground, followed by the large pig and the "regular" pig. I've shown the markings on the bottom in two orientations since I don't know which is correct.

Unfortunately my example is missing a few pieces. Wooden Universal Puzzle Set - a vintage set of three space-themed Kumiki puzzles Complete with box and instruction sheets. Kumiki Battleship Of the Kumiki ships I have, I think this one has the most interesting architecture. Kumiki Cruiser - a classic vintage puzzle from Japan. New Kumiki Ship - this example is a modern offering, made from monkeypod rather than Ho wood, including poorly photocopied instructions rather than rice paper.

Longer Kumiki Cruiser - note the lack of side panels. Large Kumiki Battleship - I found another very nice vintage kumiki ship - this seems to be one of the more rare types. It included a box and instructions, both in good shape. Kumiki Paddlewheeler - Yamanaka Kumiki Works Here are some group shots of some kumiki ships: Battlecruiser - a hard brittle plastic kumiki-style puzzle from Bell of England Same architecture as the wooden version. I picked up a Polar Bear and a Panda.

Both have unusual opening tricks - not difficult, but distinct from the typical Kumiki-style animals. There are also a Rhino and a Sea Turtle. The Rhino is very similar to the Nanook Polar Bear. Geo Australia offers the "KumiKube" puzzle. Patent - Nelson The design was improved and developed by Ron Cook at Pentangle Puzzles. Pentangle offers a series of chuck puzzles - the simplest is the Baby Chuck with 6 pieces.

The Woodchuck shown here has 24 pieces, the Papa-chuck has 54, the Grandpapachuck has 96, and the Great Grandpapachuck has Pentangle's Lunatic puzzle, also shown, is a close relative of the Chuck family. Richard Whiting's website offers a solution to the piece Woodchuck.

The knock-off versions are called "Crystal" puzzles but that is a misnomer. Note that the Tower of Hanoi puzzle is sometimes called the Pagoda puzzle, and there are also Kumiki Pagoda puzzles - but here we're talking about another class of burr. The Pagoda Burr design is easily scalable - the simplest has only three pieces. Larger versions then have 9, 19, 33, 51, 73, 99, and pieces. At the Cleverwood site, they say that the piece is rarely produced since it is considered too difficult.

I have not seen any order 9 or 10 or piece Pagoda puzzles. Any story about interlocking puzzles has to start with the traditional six-piece burr puzzle. One early depiction of the six-piece burr puzzle and specific pieces occurs in a Spanish book, primarily on the topic of magic, from by the many-talented Pablo Minguet y Irol b. In the burr shape there are 32 internal cube positions where the pieces would overlap , but musn't in order to fit together.

See above layer-by-layer diagram of an assembled burr - the internal cubies have dotted borders. These 32 internal cubes must be distributed among the six pieces in some way that a permits every piece to remain undivided, b permits the six pieces to interlock together, and c permits the pieces to be assembled and disassembled - i. These constraints mean that all six pieces to be combined in a single burr puzzle, except a maximum of one possible "key" piece, must be notched to remove some cubes, and that only certain sets of notchings will work together.

Over the years, different researchers and writers have employed different schemes to identify the pieces. Shown below is the set of 25 notchable pieces used in solid burrs. The following are only a small selection of additional pieces or 'non' pieces - i. There are 59 notchable pieces - they include the 25 shown above used in solid burrs, and there are another 10 mirror pairs shown in the table above marked as 'N'.

There are 78 millable pieces, including the 59 notchables - leaving 19 pieces that are millable but not notchable. I have noticed the following four designs recur over and over again in different products. I finally found an original example of the Zoozzler puzzle in its box:.

The Arjeu CT is another example of this construction. Obviously it would be nice to have a set of pieces all with consistent dimensions, in order to conveniently try different burr designs. Puzzlist Aaron Siegel has created several wonderful resources for the mechanical puzzle community. It seems natural to me to ask, "Can the given pieces be intermixed and used to make four other burrs simultaneously?

Bryan has machined a set of all 59 notchable pieces and posted a photo I really like where they are arranged as in my burr piece tables:. Wyatt's Puzzles. Some of Bill Cutler's designs Bill gives lists of "holey" burr designs , and other burr designs on his site.

The recent history of discovery related to the burr puzzle seems to me like the history of world exploration - at first, the "known world" was small and encompassed some well-traveled areas, beyond which lay either the "edge of the world" for those who thought they had seen all the burrs and only "a few" remained to be found , or a "terra incognita" that stretched off into the hazy distance. This section is about the "Traditional" piece Burr.

In May , after a long wait, the beautiful set below arrived at my mailbox - the Phoenix Family Burr Set - designed by Jack Krijnen and Alfons Eyckmans and hand made by Jack Krijnen from zebrano, birch and amouk for the pieces, with mahogany, hornbeam, and cedar for the box.

These are examples of the classic 6-piece Diagonal Burr. Kumiki puzzles appear in neither Catel's catalog of nor in Bestelmeier's catalog of - both of which include only the interlocking Small Devil's Hoof a traditional six-piece burr and the Large Devil's Hoof a cage-style burr. I group into this category any puzzle with a characteristic 2-piece T-shaped key, but there are four distinct sub-categories: Oshi - push the key piece out Mawashi - twisting key piece Kendon - remove a piece by moving up and down or left and right Sayubiki - simultaneously remove two key pieces.

Perhaps the most commonplace Kumiki puzzle is the classic piece Cube. The Kumiki Ball Burr is an elaboration of the traditional six-piece burr, where one of each pair of opposing bars has an extra notch near each tip, to accomodate curved outlier pieces. The Kumiki Cage Burr employs twelve interlocking bars to form a cubic cage - often a simple wooden sphere is trapped inside. The 8-Ball puzzle is one of the first puzzles I collected as a kid.

Here are the pieces of the Football:. These interlocking puzzles are examples of " Pagoda " or " Japanese Crystal " burrs. A nineteen-piece Pagoda and a similar piece puzzle are described in Wyatt's Puzzles in Wood on pages In , William Altekruse patented an interlocking puzzle now known as the Altekruse Puzzle. The Altekruse uses a set of identical pieces one of which is shown in the patent in Figure 2, and can be made with 12 or 14 pieces.

Pentangle offers a piece version called Hybrid, and a piece version called Holey Cross. Many variations have been made. Wyatt gives solution instructions, shown below. The first step emphasizes the importance of the subtle difference in the arrangement of the two pairs of pieces with respect to their center tabs. In the second step, pieces 5 and 6 should be symmetrical like 3 and 4, while 7 and 8 are parallel like 1 and 2.

This allows subassembly to slide to the right so that pieces can be inserted. Classic Six Plank Burr Four identical pieces, and two special - note the notched piece, and the piece above it which has a short "tray. Classic Twelve Piece Burr Eleven identical pieces and one with a notch. The Cell I bought this in a department store in Japan. It was made in New Zealand. It is made from 24 identical pieces similar to the traditional burr piece - but the notch is longer.

A fellow puzzler reports that it has been sold with a mouse figure trapped inside. You construct it in two piece halves which are then "screwed" together. I have seen this called "Prison" or "Twice Six. The last four get "screwed" in.

Six- more or less Board Burrs, Lookalikes, Elaborations. Don Closterman lives in Rhode Island and is over 70 years old. He designs and makes a beautiful series of interlocking, sequential dis assembly polycube puzzles in cages. It is very easy to visualize where the pieces must go in the completed puzzle, but maneuvering them into position is non-trivial! A trio of Andrew's three-piece turning interlocking cube TIC puzzles. You can reason backwards about the necessary maneuvers.

Shipped unsolved. Rotothorpe - by Andrew Crowell Thanks! I am the proud owner of Corner Cube 28 by Lee Krasnow. It has six dissimilar pieces which assemble only one way. It is not easy to find the sliding axis to disassemble the puzzle! I bought this directly from Lee in I purchased this in a Baxter auction. These photos show the assembled puzzle from various angles. The shape is a rhombic dodecahedron. Here is the puzzle coming apart Here are the six pieces. The core of the puzzle fits together in much the same way as Stewart Coffin's designs.

Here are some nice puzzles from Brian Menold. The units are rhombic dodecahedra. The units are rhombic dodecahdra. It is difficult to overstate the contributions of Stewart Coffin to mechanical puzzle design. In fact, it is difficult to decide where in this website to put a subsection devoted to him, since his ideas have become so widely applied across the field. Many of his primary contributions do lie in this area of interlocking polyhedral assemblies. Stewart coined the term "Ap-Art" to describe his "sculptures that come apart.

With the publication of his The Puzzling World of Polyhedral Dissections hosted on John Rausch's PuzzleWorld site , Stewart literally "wrote the book" on entire classes of interlocking puzzles that simply did not exist before he thought of them. Moreover, Stewart has been incredibly generous in allowing puzzle enthusiasts worldwide to utilize his designs without financial impediment. I've managed to acquire a few puzzles designed by Stewart Coffin.

Some are originals bearing his mark "STC" while the rest are copies of his designs made by other skilled woodworkers. Based on the compendium called Ap-Art , written by Stewart and produced by John Rausch, I put together the diagram below which is my attempt at showing a "family tree" of Stewart's interlocking puzzle designs. Stephen Chin of Australia is a skilled woodworker and woodturner. Stephen has also created his own version of the icosahedron, known as the "Spinico.

George Bell did some CAD modeling and after several prototypes to get the angles just right, offers spherical versions of Stephen's design in two sizes at his Shapeways shop. He calls this the Exploding Ball. The puzzle comprises 10 identical very interesting pieces.

The dissection using 10 identical pieces was at first thought to be impossible to assemble, but it can be managed. Disassembly can be challenging if you cannot think of a convenient method. I bought the larger version. He packs it in a sock :- This was one of the top ten vote getters in the Nob Yoshigahara Puzzle Design Competition.

The parts must all be cut free from the sprues, carefully trimmed, and then each puzzle piece can be assembled from its constituents according to included instructions. Each of the puzzle's pieces comprises two or more parts. Fortunately no glue is required - the parts press together, albeit with some firmness needed, and I found all the fits to be satisfyingly precise and snug - the parts are very unlikely to ever be unintentionally or even intentionally separated.

The resulting puzzle pieces are all robust and none seem prone to break during normal play while respecting the typical mechanical puzzling prohibition against use of undue force. Only 13 pieces left to fit in!

No instructions are included for how to assemble the puzzle from its pieces. I attempted assembly guided only by images of the finished puzzle - many times I had made some headway when I realized that I had to unwind several steps to insert a new piece, and furthermore that rotations were required!

This is most definitely a sequential interlocking puzzle with rotations along the way, and I am very pleased with its overall quality. It is a bit like a plastic Berrocal - the pieces are not simply polycubes - their shapes are intricate and the placement of each is not necessarily obvious, but with patience can be deduced. Tricky and non-orthogonal movements are needed to sequentially interlock and unlock the pieces during the solve.

Cutting free the parts and construction of the pieces took me about three hours, and solving assembling the puzzle about a further two hours - there were a couple of moments where three hands would have been helpful during the solve, and I only required one hint. The Spanish sculptor Miguel Berrocal has produced many wonderful artworks, including puzzle sculptures coveted by collectors.

Berrocal was born in Malaga, Spain, in , and died in He was married to Princess Cristina, the grand-daughter of the last King of Portugal. He presided over a employee foundry in Negrar and referred to himself jokingly as the "boss of the sculptor's Mafia. In college I had occasion to visit a friend - she was a foreign exchange student staying with an American family hi Fariba!

The family owned a Berrocal Mini-David and that was my first opportunity to try one of the puzzle sculptures of Miguel Berrocal. Berrocal made six sculptures in his "Mini" series, and offered them as limited edition "multiples. Asking prices are on the rise. John Rausch and James Dalgety are two dealers. Read about Berrocal on Dalgety's site. James Strayer has quite a collection of Berrocals, as does John Rausch. Berrocal produced a series of Micro Pendants including Micheline-X in having 23 pieces, the Micro Maria having 23 pieces, the Micro David having 17 pieces, and Micro Mento which is not a puzzle not shown.

You can read about fellow puzzle collector Roxanne Wong's quest for the micros in the March post on her blog. I am pleased to have obtained a bargain on Micheline X. It is a wearable rendition of his Portrait de Michele mini multiple - my favorite of the minis. A fairly large number of these were made, a few in gold, silver, and stainless, and most according to the accompanying booklet - including mine - in nickel-plated base metal in auction descriptions often said to be chromed brass.

It is surprisingly small but also surprisingly detailed. Micheline X - Miguel Berrocal Chromed base metal. You see only 22 because the base screw shown in the last row, second from right, is composed of two inseparable parts. Came with two small booklets - an instruction book, and a compendium of Berrocal's multiples. Mine is missing its certificate. Can you tell where I'd gone wrong in my reassembly photo? Here is a comparison with Portrait de Michele - Micheline is sitting atop my one-kilogram cube of Tungsten:.

Micro David Off - Berrocal Brass version. Shown: images of the front and back, pieces, and comparisons with Micheline-X and Mini David. Micro Maria with Mini Maria:. Brown's Patent filed June Keiser's Patent filed March Hoffmann's "Nut" Puzzle Minguet y Irol's Burr Kriz II. Kriz II, Enigma, G. This small plastic red burr is one of my older puzzles - I don't recall where I got it. Licorice Stix - Reiss This is a small plastic burr pendant, made in China.

Kaiyue Kong Ming Lock. Another plastic version from China. To resolve all six different solutions, I found it helpful to ask myself, "What sits in the notch of piece 52, and then which piece is opposite 52? The vintage Japanese Yamato Block Puzzle. This is Peter Marineau's "Piston" burr , so named because of the large number of times pieces must be moved back and forth during the solution. This is called The Baffling Burr Puzzle "Six interlocked pieces of wood that will challenge the experts" - there is no other information on the box.

I bought this plastic burr in Japan. This burr's wooden length pieces are stained a dark color. The Avenger is offered by PuzzleMaster. The pieces are: 1. Creative Craft House offers the Ultimate Burr Set that includes 27 pieces and can make over 60 puzzles. The next smallest class should be the AI configurations. Bill Cutler's website. Condor's Peeper. The Monster. Phoenix Cabracan.

Burrly Sane for Woodworkers. Burrly Sane for Professionals. Burrly Sane for Extreme Puzzlers. Condor's Peeper designed by Jack Krijnen made by and purchased from Mr. Tiros , shown here, is an piece burr designed and made by Alfons Eyckmans. Burr from Lee Valley Tools a substantial metal 6-piece burr.

Classic Kumiki Cubes. Pieces of the Kumiki Cube. Kumiki Cube assembly instructions from Wyatt's Puzzles in Wood. Kumiki Spheres and pieces. Kumiki Barrels and pieces. Truncated Cubes - The Cornered Cube from Wallingford Toy Works is a very large version of the usual kumiki cube, with a beveled corner. An Octagonal Prism. The Daruma Man is painted on an oval form of the barrel.

Shackman Clown - part of a fairly rare set of figures. It is similar to the puzzles in the Shackman Clown series. Kumiki Palace. A nice, large Kumiki Tori Gate. Kumiki Totem Pole. Kumiki Cabin. Kumiki Cabin - another version with windows and a coin slot in the top. Kumiki Ball and Bat. Kumiki Bowling Pin. Kumiki Bottle. Kumiki Geta - a pair of Japanese wooden sandals.

Kumiki Dragonflies. Kumiki Burrs. Kumiki Pistols. Yamanaka Kumiki Burr from the Yamanaka Kumiki Works 54 pieces in four different types assemble to make an attractive symmetrical structure. Step Burr - vintage Kumiki. Spike Burr - vintage Kumiki. Kumiki Elephants - The larger piece is a beautiful and substantial wooden interlocking elephant puzzle from the Yamanaka Kumiki Works.

Yamanaka Kumiki Works Giraffe. Yamanaka Kumiki Works Hippopotamus. Kumiki Lions with instruction sheet on very flimsy paper. Kumiki Pigs. A larger Kumiki Pig. Piglet - vintage Kumiki. I found a Kumiki Pig much larger than those I had: In this group photo it's the huge one in the back. Kumiki Dog. Kumiki Mouse.

Kumiki Horse. Kumiki Cat. Kumiki Bird. Kumiki Alligator. I found a large Kumiki Alligator , shown with the small one I had:. Kumiki Cow A butcher's version marked with cuts of beef. Kumiki Fox by Mi-Toys. Kumiki Camel by Mi-Toys. I found a Kumiki Cow design I didn't have:. Kumiki Swan by Mi-Toys. Kumiki Ladybug. Kumiki Turtle. Kumiki Kangaroo - and that's baby Joey in her pouch! Kumiki Monkey. Kumiki Panda - from the Yamanaka Kumiki Works, in its original package with instruction sheet. Kumiki Tyrannosaur.

Kumiki Rocking Dragon Bank. A Kumiki Train. Kumiki Trolley by Shackman with box and instruction sheet. Kumiki Trolley by Smith Novelty. Kumiki Trolley A smaller, narrower version. Kumiki Locomotive. Kumiki Motorcycle - this one is missing a few pieces. Kumiki small Jeep. Large Kumiki Jeep. Kumiki Pickup Truck. Kumiki Rocket. Kumiki Flying Saucer - a simple but elegant design. Kumiki Saturn - I finally found an intact example.

Kumiki Airplane. Vintage Kumiki Aeroplane - Japan. Kumiki Bomber. Vintage Aeroplane Block Puzzle. Kumiki Ship Only two stacks. Kumiki Paddlewheeler - Yamanaka Kumiki Works. Here are some group shots of some kumiki ships:. Battlecruiser - a hard brittle plastic kumiki-style puzzle from Bell of England Same architecture as the wooden version.

The "Gold Moon" I got in Japan. You can see more Lego versions at Maarten Steurbaut's website. It does not require a rotation. The Arjeu CT31 is another example. I got an inexpensive smallish version from an Asian vendor. The Arjeu CT80 is another example. It is quite large and made from attractive woods. Check out Henry's Etsy Shop. Fairly compact given its complexity, but very nicely made. Purchased from Cleverwood. Shown with edge-6, edge-5, and edge-8 examples.

I don't know of anywhere else to get a piece pagoda or larger. Colin Gaughran made this piece version of the Altekruse. Note the pattern of four blocks on each face. Note the pattern of five blocks on each face. The Xeon Molecule by Skor-Mor is a plastic, modern-looking version. One of them even came with a solution sheet.

On two of them, some of the pieces had broken fins, but the bits were included and I was able to glue them back together. The vintage piece Panel Puzzle by Adams is also a version of the Altekruse. This is also called the "Block Puzzle Senior.

Stewart Coffin developed and licensed the pinned version of the Altekruse puzzle which was marketed by 3M and Avalon Hill and named Frantix. Here are the 12 pieces of the plastic version of Frantix. Purchased from CubicDissection. This looks like a pagoda burr, but notice the missing blocks in the inner corners.

It is actually an Altekruse variant. Triple Decker - Bits and Pieces. This is called "Iwahiro's Apparently Impossible Cube 1. It was made by Eric Fuller from Chakte Cok wood. This is the Crystal Cube , designed by Bill Darrah. I especially like this design because the pieces are not identical. E-Box - Vinco A nice little 3-piece coordinate motion puzzle. It's not overly difficult, but I think the printed live hinges are cool.

Little Slide Plank Cube - designed by Gregory Benedetti Greg has achieved a very clever dissection of the cube into three similar but different pieces that fit together with coordinate motion. Precision made. Not easy to get started. However, unlike many other coordinate motion puzzles, putting it back together was actually pleasant rather than frustrating.

Viper Cross by Vinco. Six piece coordinate motion puzzle. The quality of Lee's 3D prints are outstanding! The Bow - A beautiful coordinate motion puzzle, made by Bill Sheckels from red zebrawood. Expertly contoured and finished! Back in July , Ray Swinney, a friend of the late puzzle designer Robert Rose, contacted me - Ray's son had been able to fabricate a limited edition of nice metal coordinate motion burr puzzles.

Ray kindly sent me an example - thanks, Ray! These are examples of a common 3-piece design known as O-C-C , after the shapes of the three pieces. Van Delft and Botermans also describe the puzzle, as "The Wooden Knot," on page 67 of their Creative Puzzles of the World but again cite no history. Patent - Rao According to Singmaster, the Hordern collection contains an instance called "Le Noeud Mysterieux" from circa It has been produced in wood, and also in plastic as the Triple Cross by Skor-Mor.

Here is a link to Jurgen Koeller's page showing the solution. Someone had the idea to notch a knife, fork, and spoon so they could be assembled like the OCC burr. Only a few other three-piece burr designs can be considered at all well-known. One other common design employs two notched pieces, and a piece with a rounded shaft that allows the piece to be rotated in place.

I made a copy from Lego, and posted photos on Brickshelf. This design was also described by Wyatt in Puzzles in Wood , on page This is also the simplest form of a Pagoda or Japanese Crystal puzzle. Le Noeud Mysterieux - a vintage wooden French boxed puzzle. I don't have this. During , Bill Cutler performed a complete computer analysis of all 3x3x3 three-piece burrs. He found ,,, i. There are 80 designs at the highest level, 8, and they come apart in two different ways.

Of the 80, there are only 3 that have 9 internal voids - 2 of those come apart in one of the ways, and just one comes apart the other way. Bill named this GigaBurr. The other type is called GigaBurr II. These are based on the 3-piece GigaBurr, expanded to a 5x5x5 cube by adding edge and corner pieces.

Cutler's complete computer analysis of all such designs found three different disassembly sequences at the highest level, 6. Eight steps to remove the first piece. This is Neptunus from Arjeu CT It is made of three notched plates. The solution requires an unconventional move, and Eric says some people thought it was an impossible object. It was designed by Oskar van Deventer. This is a nice aluminum example of the design by Wilhelm Segerblom of Wakefield, MA, published in the April issue of Scientific American magazine.

The 3 identical pieces assemble with coordinate motion. Note : this looks like the Improved Segerblom three-piece burr discussed on Jurg's site. This actually has six pieces, but they interlace to form the traditional three-bar shape.

Magnets hold the pieces in their closed positions. A nice sequential level 7. Invented by Nob Yoshigahara, this little burr is a poseur - read about it on Jurg's site. Thanks, Peter! It's called 33E and was designed by Frank Potts. Cheer - designed by Ronald Kint Bruynseels, issued by Philos. A three piece interlocking puzzle.

Three pieces, level 8. Several other unconventional designs using three pieces are shown on Ishino's website. This is a boxed burr I got from Tom Lensch. Each face of the outer box is attached to one burr piece inside the cube. Freeing the key piece requires a trick. The burr pieces used are: 1, , , , , and The box definitely makes it easier to solve, since the faces are distinctly fitted. The mahogany wood is really beautiful. It employs 2x , but the other two pieces have notches where Jurg's system does not allow them beneath positions 1,4,5, or 8.

This is the "Combustion" burr from B and P. My first became hopelessly jammed; I obtained another. Six-Piece Framed Burr by miToys. Turtle's Heart - Kotani. They describe this puzzle: "There are a few notchable burrs which are level 4 and unique when assembled inside a cube, but they are of lower level and not unique when assembled outside. I have a solid titanium version of this that I got from a Kickstarter project.

It looks like a cool metal sculpture. But I didn't know that this was also a pretty well-known wooden puzzle. I got it without any solution instructions. So when I accidentally discovered that removing a couple of pieces will cause the whole contraption to just collapse into the separate constituent pieces, I had to figure out how to put it all back together.

It took about 30 minutes for me to figure that out and solve the puzzle, but I didn't have as much fun doing it as I should have because I was a bit upset that I had ruined a cool "sculpture". Inserting the last 2 pieces was a bit tricky but when I saw the solution in my head, visualizing in 3D how the pieces needed to be moved into place, all I felt was relief. Question 2 years ago on Step Answer 2 years ago.

Reply 4 years ago. I remember a completely flush square one and a round one not much bigger than a baseball. This was my first try at the Burr Puzzle. I've seen the round ones but they look way above my woodworking ability :.

Introduction: Burr Puzzle. By mtairymd Follow. More by the author:. About: I like to design and build random things. More About mtairymd ». Lastly, it you can't figure it out from the pictures, I've included a video of the solution. Enjoy making your puzzle! You will be building to this drawing. Note that I assumed a 0. Use these dimensions if you are starting with 0. Same build process as Option 1. Attachments Part1. Download View in 3D.

Did you make this project? Share it with us! I Made It! KingOHA 1 year ago. Reply Upvote. Answer Upvote. PabloU11 4 years ago. Antonio Prieto 4 years ago. These are neat, my Dad brought several back from Japan when I was a kid.

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