RELEASED:8.14.2014PRODUCED:42 CopiesDESIGNER:William HuCRAFTSMAN:Eric FullerMATERIAL:White Oak, Chakte Viga / WalnutCOMMENTS:This seemingly simple puzzle uses a very interesting and difficult type of rotation. Ultra tricky and not like anything I've tried before. Level nine and fun...watch out, this one will have you pulling your hair out! Construction was tricky...the solid side spine and endgrain key pieces were fun to make, but very labor intensive. Fit is excellent; may be difficult to solve...

RELEASED:3.27.2013PRODUCED:35 CopiesDESIGNER:Ishino KeiichiroCRAFTSMAN:Eric FullerMATERIAL:PaduakCOMMENTS:I had not made a standard six piece burr in a long time, and was feeling the urge. But which to make? So many good candidates out there. I knew I had to choose one that most of my customers did not have, but I also wanted to pick one that was fairly complex and interesting. While shopping around I came across Ishino's Unique 4.6 Moves design, and I knew I had a winner. Notchable and with a s...

RELEASED:12.16.2015PRODUCED:55 CopiesDESIGNER:Gregory BenedettiCRAFTSMAN:Eric FullerMATERIAL:MapleCOMMENTS:With the invention of the NOS (New Old School) puzzle series, Gregory took the six piece burr format and turned it on its head. The only thing more noteworthy than the uniqueness of the series was how difficult they are to make. When he sent me the plans for them a year ago, I turned him down because it just looked like a nightmare to manufacture. I wasn't wrong...BUT...Gregory came up to m...

RELEASED:4.15.2015PRODUCED:40 CopiesDESIGNER:Bill CutlerCRAFTSMAN:Eric FullerMATERIAL:Canarywood, Purpleheart, PaduakCOMMENTS:Another classic Cutler burr, I chose to interpret this one with more colorful woods than the usual cherry/walnut/maple. The size is also a bit smaller so it doesn't crowd your shelves.Here is what Bill has to say about the Visible Burr design: I like to design burrs which are difficult to take apart. This requires irregular notches in the pieces, and I usually like to hid...

RELEASED:9.20.2013PRODUCED:38 CopiesDESIGNER:Goh Pit KhiamCRAFTSMAN:Eric FullerMATERIAL:Cherry, WalnutCOMMENTS:This puzzle is a groundbreaking and highly anticipated design. Only 30 copies have ever been made in the past, and Brian at Mr. Puzzle sold them out very quicky. The Ternary burr consists of 22 pieces, with over 90 notches and and grooves. The unique solution requires 75 moves to get the first piece out, and over 90 moves to completely disassemble the puzzle. A very difficult work of ar...

RELEASED:11.3.2015PRODUCED:41 CopiesDESIGNER:Bram CohenCRAFTSMAN:Eric FullerMATERIAL:Ash and SheduaCOMMENTS:I haven't made any of Bram's designs in a while, but this one caught my eye. A simple box with simple pieces that is anything but simple to solve. The interlocking solution is a unique level 6.2.3.4.5 which if you're a nerd like me is kind of amusing. There's plenty of room in the box, and with over 40k solutions but only one assemblable, you'll soon be cursing Bram's name. Just remember t...

RELEASED:8.14.2014PRODUCED:37 CopiesDESIGNER:William HuCRAFTSMAN:Eric FullerMATERIAL:RosewoodCOMMENTS:Another brilliant design from Hu that's not what it seems. This six piece puzzle is actually a level 4.2 masterpiece which uses pins, holes and notches to move a lot more than you would expect. Moderate in difficulty; high in entertainment value! This is a very unique and deceptive design.Fit is superlative! May be difficult to solve in highly humid environments due to the very close tolerances ...

RELEASED:5.14.2014PRODUCED:42 CopiesDESIGNER:William HuCRAFTSMAN:Eric FullerMATERIAL:Paduak, BubingaCOMMENTS:Every time I think I've seen it all when it comes to 4x4 cubes, someone proves me wrong. In thie case it's Mr. Hu with his excellent "Two Wheeled Cube" design. with an odd level 1.1.1.2.8 solution, this puzzle is moderate in difficulty but very high on the fun factor. The first four pieces form a shell around the heart of the puzzle; two identical "wheels" which rotate and dance around ea...

RELEASED:2.17.2016PRODUCED:40 CopiesDESIGNER:Ken IrvineCRAFTSMAN:Eric FullerMATERIAL:Purpleheart / MapleCOMMENTS:Trifecta was Ken's entry for the 2015 IPP design competition. It's a lot of fun, with two different goals: three copies of three different types of pieces assemble to form the given configuration, both with and without the optional three-cube bonus piece. There is a fair amount of confusing movement with disassembly, and reassembly is moderately difficult but a lot of fun. This is a s...

RELEASED:6.18.2015PRODUCED:40 CopiesDESIGNER:Bill CutlerCRAFTSMAN:Eric FullerMATERIAL:Maple, BubingaCOMMENTS:Helix the Burr is one of Bill's most interesting designs. Meant to be difficult to take apart, it's VERY VERY true to form. Disassembly is chaotic and unexpected. This is a landmark design in my opinion, and I was thrilled to make it simply because I had always wanted a copy for my collection. Bill has this to say about it: "This burr features the most interesting disassembly sequence tha...

RELEASED:11.29.2012PRODUCED:38 CopiesDESIGNER:Osanori YamamotoCRAFTSMAN:Eric FullerMATERIAL:Walnut / Mora / WengeCOMMENTS:This tricky puzzle by Osanori has an interesting appearance as well as an interesting solution. The two halves of the frame create a maze internally which changes state as you slide the pieces back and forth. The internal pieces dance around, moving in and out and about each other until finally they (hopefully) find their final resting spot with a symmetrical solution. Given ...

RELEASED:5.27.2013PRODUCED:40 CopiesDESIGNER:Logan KleinwaksCRAFTSMAN:Eric FullerMATERIAL:Walnut and Ash Cages, Cherry or Holly or Maple piecesCOMMENTS:When Logan sent me the first puzzle in this series, the Bookend puzzle, I was very impressed. The concept was interesting, the solution tricky, and of course the finished puzzle displayed very nicely. He then followed it up with three more complimentary designs, each with a unique solution. I knew immediately I wanted to make them, and so now I'm...

RELEASED:5.27.2013PRODUCED:40 CopiesDESIGNER:Logan KleinwaksCRAFTSMAN:Eric FullerMATERIAL:Walnut and Ash Cages, Cherry or Holly or Maple piecesCOMMENTS:When Logan sent me the first puzzle in this series, the Bookend puzzle, I was very impressed. The concept was interesting, the solution tricky, and of course the finished puzzle displayed very nicely. He then followed it up with three more complimentary designs, each with a unique solution. I knew immediately I wanted to make them, and so now I'm...

RELEASED:5.27.2013PRODUCED:42 CopiesDESIGNER:Logan KleinwaksCRAFTSMAN:Eric FullerMATERIAL:Walnut, Maple, CherryCOMMENTS:f you like solving one six piece burr, how about two at the same time! With a difficult level 18.6.3 solution, this puzzle is not for lightweights! Tricky and entertaining, and displays very well once solved. Three different woods used for aesthetics and also to give the solver a chance (this puzzle would be exponentially more difficult in solid wood). Logan also designed a fou...

RELEASED:2.13.2013PRODUCED:40 CopiesDESIGNER:Yavuz DemirhanCRAFTSMAN:Eric FullerMATERIAL:Sapele / CocoboloCOMMENTS:When I saw this design (along with "Begonia") I knew immediately I wanted to make it. Blurring the line between a packing puzzle and an interlocking puzzle, the goal is to construct the 3x3 cube inside the box. Tougher than you might imagine since the opening is only 2x2. The solver must figure out the proper piece orientation as well as the order of insertion. Tricky but not insane...

RELEASED:4.15.2015PRODUCED:38 CopiesDESIGNER:Olexandre KapkanCRAFTSMAN:Eric FullerMATERIAL:Yellowheart, CherryCOMMENTS:This is probably my favorite puzzle of the update, and I spent a lot of extra time and attention on it. It's whimsical for sure, but still an impressive level 10 solution. The Yellowheart and Cherry offset each other for that pleasing chicken look without all the annoying chicken poop everywhere. Or do they?I'm very proud of the construction techniques used in this puzzle. The Y...

RELEASED:3.27.2013PRODUCED:54 CopiesDESIGNER:Stewart CoffinCRAFTSMAN:Eric FullerMATERIAL:Oak and WalnutCOMMENTS:Double Cross was Tom Rodgers exchange puzzle at IPP 29 in San Francisco. Designated #240 by Stewart Coffin, it looks fairly simple with six thicker sticks intersected by six thinner sticks. Solving it is anything but, as the angles are very confusing and you always end up with that one piece that won't fit. I'm delighted with this puzzle, it's a heck of a lot of fun. Difficult enough t...

Stewart Coffin's Four Corners Puzzle (STC #6), made of Canarywood, Yellowheart, Chakte Viga, and Peruvian Walnut. Centers made from Royal Mexican Ebony (Katalox). Each puzzle piece consists of a six sided center block and with a prism block attached to each end. The prism blocks are in four contrasting fancy woods, combined in all 6 possible permutations. Different coloring patterns are possible in the assembled puzzle. Signed on the inside of the puzzle by me.Buyer will be expected to pay...

It's one of my test using 3D printing for the NOS series.NOS 3 ROUND TRIP This edition has a very good fitting. This version is "full of powder", more heavy. With a level : 4.8.3.2 Coordinated motion required.Eric said about this one : "Round Trip is the third of the NOS designs and is very tricky both to disassemble and reassemble. It has a level 4.8.3.2 solution, and requires coordinate motion. The first move will very much surprise you!" ...

It's one of my test using 3D printing for the NOS series.NOS 1 COMPRESSED This edition has a good fitting. This version is "full of powder", more heavy. With a level : 2.2 Coordinated motion required.Eric said about this one : "Compressed is the first of the NOS designs. It's very tricky to disassemble and uses some rather extraordinary coordinate motion. Reassembly is also difficult, and has a mild dexterity component. Two sets of three identical pieces move in ways you...