Four identical pieces, a simple frame, and a level 18.10 solution. Typical of Osanori's designs, this puzzle is difficult, fun, and aesthetically pleasing. The pieces are cut from solid bubinga, and interact in tricky and surprising ways with the box. I like this design a lot, and recommend it to any puzzler looking for a moderate to difficult challenge.I'm selling these puzzles to fund future puzzle-making equipment, and of course to buy morepuzzles :)buyer is responsible for money transfer fee...

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 ...

42 piece boxed set includes original documentation.Wayne DanielIf the buyer chooses to be invoiced through Paypal, then Paypal fees of 3.98% will be added to the price. Buyer assumes all shipping fees.

Woody Cube Puzzle/Nankai, from Bits and Pieces, #07-G7909, called "The Classic Cube Conundrum" in their catalog. Weighs 12 ounces without any packaging.

42 piece boxed set with original documentationC.A. Cross and PentangleMade of MahoganyIf the buyer chooses to be invoiced through Paypal, then Paypal fees of 3.98% will be added to the price. Buyer assumes all shipping fees.

"This puzzle is two designs in one - the cage comes with two sets of burr pieces (one a six unit length and the other an eight unit length) which are entirely different puzzles to insert. The designs were released at roughly the same time, and I found them both interesting. When I realized they shared the same cage, I was in! Both designers graciously gave permission, and so I present to you the combined Vectes / Ghidorah Box. Ghidorah is the "warm up" difficulty with a level 22.3 solution. Once...

from cubicdissection.com:Oh Tom, you crafty little devil. Once again he comes out with a very interesting and unique design that I can't resist making. Tom's Square Dance consists of nine pieces which interlock into the surrounding frame. WIth a unique level 1.8.5.3.4 solution, this is a tricky nut to crack. Simply identifying piece positions is quite tricky, and sorting out the insertion order and moves necessary simply compounds the difficulty. Definitely doable, but definitely difficult. I'm ...

Akiyama Cube, designed by Hisayoshi Akiyama, made by Naoyuki Iwase. Weighs 7 ounces without any packaging.

from cubicdissection.com:I was showing various puzzles to an IPP attendee when they skipped right over this one. I started to show it to them and they said "Everything interesting that can be done with 4x4 cubes has already been done". I laughed and showed them about half of the solution, at which time they cried "Stop - I'll take it!". This really is a fabulously interesting cube, and Tom really hit the ball out of the park with it. It's just a downright fun puzzle that still puts a smile on my...

Loopy cube, beautifully made by Brian Menold in Osage Orange and Wenge, in 2014. Design by Tom Jolly. A fairly normal 4x4x4 cube, with a loop. Only 1 rotation needed. It's shown at http://puzzlewillbeplayed.com/444/LoopyCube/. Weighs 9 ounces without packing.

Stewart Coffin's Convolution by Mark McCallum

Stewart Coffin's Involute by Mark McCallum

This is a 20 piece altekruse type puzzle of unknown designer. J. McFarland modified it with extra internal notches to allow a 6 piece burr to fit inside. The puzzle uses 1" sticks and the 6 piece burr is a level 5 Bill's Baffling Burr designed by Bill Cutler. Both puzzles were made in 1988, only 2 sets made. 8 pieces need rounded edges in the notch for the puzzle to assemble.

"Despite the devilish difficulty of this puzzle, let me assure you that Derek is a really nice guy. Keep that in mind as you go crazy trying to solve his latest creation. Derek's half dozen is fiendishly difficult at a level 26.9.5 solution. It's so hard to solve I took pity and made the pieces from three woods so you'd have a big clue as to what goes where. I'm also shipping it assembled. You're welcome.Construction is dead on with VERY nice tolerances. Everything's square and beveled, with thr...

Stewart Coffin's Improved Cluster Buster by Scott Peterson - inscribed #3-6/11-STP.

A three piece 3x3x3 "cross" burr. Includes stand.If the buyer chooses to be invoiced through Paypal, then Paypal fees of 3.98% will be added to the price. Buyer assumes all shipping fees.

Purpleheart and Pao Amerillo If the buyer chooses to be invoiced through Paypal, then Paypal fees of 3.98% will be added to the price. Buyer assumes all shipping fees.

90 pieces. Made of MahoganyIf the buyer chooses to be invoiced through Paypal, then Paypal fees of 3.98% will be added to the price. Buyer assumes all shipping fees.

6 pieces Walnut & OakIf the buyer chooses to be invoiced through Paypal, then Paypal fees of 3.98% will be added to the price. Buyer assumes all shipping fees.

The Sears Tower was a souvenir puzzle for IPP23 Chicago, 2003. 13 wood pieces.