Item is in brand new condition - never solved.Four pieces combine to form a perfect cube - fairly large in size - 3" x 3". Completed cube is very well aligned with no gaps. See the following website to see cube configuration - : https://johnrausch.com/PuzzleWorld/puz/sonneveld_four_piece_cube.htmThere aren't too many moves but the solution is very unorthodox requiring some semi-choreographed interaction between pieces - I never even attempted solving it.

Repulsion BoxChain of FoolsFraser Edmond

mimosa is a 'sequential movement take apart' puzzle designed and made by me. It is made of laser-cut wood and acrylic. the goal of the puzzle is to remove the object from the case. it's name, 'mimosa', is derived from the 'mimosa pudica' plant's property of reacting to small touch and movements.

Numlock N-ary puzzle from Johan Heynsdesigned by Pit Khiam Gohcrafted by Johan Heyns and Jack Krijnenmaterials: Cherry, Tulipwood, African Teaksize: 30 x 15 x 5 cmcondition: excellent, original assembly instructions includedadditional information: this is the Ternary version with shorter sticks and without the Quinary piecesproduct description: https://www.puzzlemad.co.uk/2017/11/not-jingly-but-still-worthy-of-whack.html

Fermat designed by Volker Latusek, made by PelikanOnly 3 pieces, this was one tough (but delightful!) packing puzzle.From the description on Pelikan's website: "Kevin Sadler wrote about it: Using the usual box that we are by now all rather familiar with, Dr Latussek has branched out into the use of not rectilinear shapes. Named after the great French mathematician, this puzzle takes 3 triangular prisms of slightly different dimensions made from Maple and asks that they be “solved” into the ...

Tower of Babel from the Toyo Glass Puzzle CollectionThe goal is to roll the marble up the spiraling ramp.  Puzzle is new and comes with original outer cardboard packaging.  Packaging looks new too.  This version of the puzzle was not available commercially, but instead was a promotional item from Nikka Whisky.-----Buyer is responsible for shipping which should be less than $10 (within USA, first-class).  Priority mail (and heavier puzzles) might be $2 to $5 more.  I charge only exact shipp...

Sputnik (in Cube) or "Cube in Cube", designed by Marcel Gillen, made by B&PA lovely little take apart puzzle that looked great on my "metals" shelf.  The puzzle comes with its original box and instruction sheet.  Outer frame is in excellent condition while the inner cube shows some edge wear..-----Buyer is responsible for shipping which should be less than $10 (within USA, first-class).  Priority mail (and heavier puzzles) might be $2 to $5 more.  I charge only exact shipping costs.  Please...

Bantam Eggs is cited on page 66 in Jerry Slocum and Jack Botermans' New Book of Puzzles.  The puzzle was originally designed for the World's Fair in 1934 as the "Scrambled Eggs" puzzle, and was later reproduced in the version offered here in 1956.  It was manufactured by Scramble Eggs Incorporated in Chicago.Bantam Eggs comes in its original box with original instructions.  The colorful box shows some fading from over the past 65 years.  The wood is frail from being so old, and there is a mi...

The Super Cylinder by AbramsPuzzlesAndMore.This is a high quality 3D printed SD puzzle box with some very cool, clever, complex and well hidden mechanisms! Right from the start the satisfying clicks while rotating the top and the interesting way the numbers turn makes it a nice fidget puzzle. But unlocking its secrets won't be easy, in fact, it's quite challenging! I spent about 2 weeks on it and was thoroughly impressed. Not only is it a high quality 3D print but it's also loaded with metal har...

23 is a restricted 2D packing puzzle. I cannot say much more without it being a spoiler, but trust me on this... it is amazing. Very clever and tricky this is one that you will solve, share and solve again!Great puzzle that has a simple aim... put the pieces in the frame.Combined shipping available.

#45/111 of a limited run.Printed in elegant Dark Silk Gold and Silk Bronze PLA Filaments, each puzzle takes 38 hours to print and assemble. An eye-catching desktop toy for the office and a perfect gift for puzzle lovers/collectors.Your goal is to find out how to solve this beautiful puzzle box.The Angel is a two-stage sequential puzzle; Solve the first stage (Four pegs on the outside perimeter) and the Centre Cylinder will move and be ready for stage two. The centre cylinder can be lifted out on...

Eric Fuller's Small Box One - Window Box.  Fun puzzle with original pouch."Small Box One - Window Box is a devious drawer tucked into a box with lots going on for its size. The large hole in the box serves as a window into the mechanism...careful observation and experimenting is necessary to reveal its secrets. I'm very happy with how this box turned out, the mechanism works flawlessly and repeatably once you know the scoop.The construction of this puzzle is sturdy and detailed. The mechanism d...

An amazing sequential discovery puzzle with unique mechanics. 

Lunatic Lock puzzledesigned by Gary Fosheemade by Bits and Piecesmaterial: brushed aluminumsize: 3 1/8" x 3 3/8"condition: good, works perfectly

House of the Dragon is a new form of intellectual logic games designed to replicate the story and scenarios of EscapeWelt escape room.Recreate the tension and thrills of an escape room with your loved ones from the comfort of your own home.House of the Dragon is crafted by expert engineers who have hand-picked puzzles and multi-level tasks designed to challenge. Solve House of the Dragon's challenges to reveal the mystery behind the quest.Made entirely from birch wood, House of the Dragon is an ...

Space Box is a new form of intellectual logic games designed to replicate the story and scenarios of an EscapeWelt escape room.Recreate the tension and thrills of an escape room with your loved ones from the comfort of your own home.Space Box is crafted by expert engineers who have hand-picked puzzles and multi-level tasks designed to challenge. Solve Space Box's challenges to reveal the mystery behind the quest. Made entirely from birch wood, Space Box is an environmentally friendly product. W...

INSPIRED BY THE LATE TANAKASAN'S NESTLING EGGS FROM JAPANTHIS IS MY 1/2 DOZEN VERSIONLARGEST EGG IS WOOD THREADED (NOT EASY TO DO) TO SECURE ALL THE EGGS TOGETHER, SIZE  33MM x 48MMSMALLEST EGG IS A REAL GOLD 22K,  SIZE 4MM X 6 MM,,,WOO HOO! $100A WORTH EXOTIC WOODS USED  New Guinea Rosewood, Huon (Aromatic),Ebony, Hairy Oak, Rock MapleWOOD IS SANDED 4 X WITH 7 GRADES, AND WAXED 3XALL EGGS ARE TEXTURED INSIDE, VERY PRETTY AND A WOW!THE EGGS ALL STAND UPRIGHT, THE BASE HAS A  WOODTURNER'S ...

This puzzle was purchased directly from Dee. It has been solved a couple times. Like new. Phillipine mahogany and peruvian walnut.

THIS WAS MY IPP EXCHANGE PUZZLE A WHILE BACK ITS A PEN, ITS A STYLUS, AND NOW 1ST TIME EVER , ITS A PUZZLEBOX,,,,WOO HOOSEQUENTIAL DISCOVERY, FIND AND REMOVE THE DIAMOND INSIDEEXOTIC WOOD VERSION , SLIM LINE VERSION, WOOD IS BLACK PALMI WILL COMBINE WINING ITEMS TO LOWER POSTAGE COSTS, NO PAYPAL FEES 

AKA THE GOLDEN RHOMBIC TRIACONTAHEDRON PUZZLEBOXTHE WORLD FAMOUS CHINNYHEDRON REVISITED, I MADE THEM ABOUT 10 YEARS AGOTHE REASON WHY GOD GAVE YOU 2 HANDS AND 10 FINGERS, TO OPEN THE CHINNYHEDRONS,,,,,,, NOW YOU KNOWNICE EXOTIC WOODS, FIND THE DIAMONDS INSIDETHIS TIME I INCLUDED A PENNYHEDRON, ITS COUSINTHERE ARE 26 PENNY VARIATIONS, GUESS WHICH ONE?YOU WILL UNDERSTAND WHY THESE TWO GOES WELL AS A PAIR WHEN YOU PLAY WITH THEMTHE MYSTERY THICKENS,,,,,,,I WILL COMBINE WINING ITEMS TO LOWER POSTAG...