Goh Pit Khiam sent me this design and I really liked it. It's a tricky packing puzzle that uses a new type of motion. With five identical pieces (but different wood types) and an acrylic cover, it's a lot of fun to play with and figure out. Moderately difficult, you can feel comfortable handing this off to a non-puzzling friend. Fit is very good, should not have any issues with humidity changes.Note:  This copy has an acrylic floating bottom panel for display in the solved state, which is diff...

Up for Auction is T13, Trick Lock 13 by Rainer Popp. Puzzle was solved and stored, patina did develop. Polished and waxed using British Museum approved products. Some light scratches and faint patina are present upon close inspection. There are two dings noticeable from far away. One on the front face and one on the beveled edge on the front right side, see photos for detail. Other than that the puzzle is in excellent condition. Additional photos are available by email upon request. Note: Orig...

De Kas is a very challenging ten piece burr puzzle by Alfons Eyckmans. Four eight unit burr pieces interlock with two larger board pieces and four congruent smaller board burr pieces zig-zagging inbetween to make a very unique final shape. The design is in a similar style of Alfons' puzzles we have made in the past, specifically Spiral and Steps. With a level 24.2.2.2.2.2.2.2.4 disassembly alone is a tough task with a few dead ends towards the start.The puzzle was made from a very nicely sourced...

De Kas is a very challenging ten piece burr puzzle by Alfons Eyckmans. Four eight unit burr pieces interlock with two larger board pieces and four congruent smaller board burr pieces zig-zagging inbetween to make a very unique final shape. The design is in a similar style of Alfons' puzzles we have made in the past, specifically Spiral and Steps. With a level 24.2.2.2.2.2.2.2.4 disassembly alone is a tough task with a few dead ends towards the start.The puzzle was made from a very nicely sourced...

De Kas is a very challenging ten piece burr puzzle by Alfons Eyckmans. Four eight unit burr pieces interlock with two larger board pieces and four congruent smaller board burr pieces zig-zagging inbetween to make a very unique final shape. The design is in a similar style of Alfons' puzzles we have made in the past, specifically Spiral and Steps. With a level 24.2.2.2.2.2.2.2.4 disassembly alone is a tough task with a few dead ends towards the start.The puzzle was made from a very nicely sourced...

De Kas is a very challenging ten piece burr puzzle by Alfons Eyckmans. Four eight unit burr pieces interlock with two larger board pieces and four congruent smaller board burr pieces zig-zagging inbetween to make a very unique final shape. The design is in a similar style of Alfons' puzzles we have made in the past, specifically Spiral and Steps. With a level 24.2.2.2.2.2.2.2.4 disassembly alone is a tough task with a few dead ends towards the start.The puzzle was made from a very nicely sourced...

De Kas is a very challenging ten piece burr puzzle by Alfons Eyckmans. Four eight unit burr pieces interlock with two larger board pieces and four congruent smaller board burr pieces zig-zagging inbetween to make a very unique final shape. The design is in a similar style of Alfons' puzzles we have made in the past, specifically Spiral and Steps. With a level 24.2.2.2.2.2.2.2.4 disassembly alone is a tough task with a few dead ends towards the start.The puzzle was made from a very nicely sourced...

Initially released in 2012, Topless Box is a favorite we never tire of recreating. The solution is tricky and surprising. Upon inspection Topless Box immediately presents a conundrum: with two lids and no top or bottom, how can it be opened? Where do you even begin?The mechanism may be deduced without the use of external tools. No bumping, banging, shaking, spinning, gravity moves, or excessive force is necessary or allowed. Once opened, the elegant mechanism is visible to the solver, and you'll...

Initially released in 2012, Topless Box is a favorite we never tire of recreating. The solution is tricky and surprising. Upon inspection Topless Box immediately presents a conundrum: with two lids and no top or bottom, how can it be opened? Where do you even begin?The mechanism may be deduced without the use of external tools. No bumping, banging, shaking, spinning, gravity moves, or excessive force is necessary or allowed. Once opened, the elegant mechanism is visible to the solver, and you'll...

Initially released in 2012, Topless Box is a favorite we never tire of recreating. The solution is tricky and surprising. Upon inspection Topless Box immediately presents a conundrum: with two lids and no top or bottom, how can it be opened? Where do you even begin?The mechanism may be deduced without the use of external tools. No bumping, banging, shaking, spinning, gravity moves, or excessive force is necessary or allowed. Once opened, the elegant mechanism is visible to the solver, and you'll...

Initially released in 2012, Topless Box is a favorite we never tire of recreating. The solution is tricky and surprising. Upon inspection Topless Box immediately presents a conundrum: with two lids and no top or bottom, how can it be opened? Where do you even begin?The mechanism may be deduced without the use of external tools. No bumping, banging, shaking, spinning, gravity moves, or excessive force is necessary or allowed. Once opened, the elegant mechanism is visible to the solver, and you'll...

Initially released in 2012, Topless Box is a favorite we never tire of recreating. The solution is tricky and surprising. Upon inspection Topless Box immediately presents a conundrum: with two lids and no top or bottom, how can it be opened? Where do you even begin?The mechanism may be deduced without the use of external tools. No bumping, banging, shaking, spinning, gravity moves, or excessive force is necessary or allowed. Once opened, the elegant mechanism is visible to the solver, and you'll...

Up for Auction is Eternity by Christopher Monckton. These webpages contain an explanation of the puzzle as well as a brief history of the solvers. Thank you to Ed Pegg Jr. from mathpuzzle.com for the information about this design. Most of the original information is no longer accessible. https://mathpuzzle.com/eternity.htmlhttps://en.wikipedia.org/wiki/Eternity_puzzleMost notable is the one million pounds sterling cash prize given to the first successful solver. Each piece of this puzzle is mad...

Up for Auction is Free Me 7, a wonderfully clever take apart puzzle designed and crafted by Joe Turner. This puzzle was the 2021 Turner Christmas Puzzle with about 200 made. Some went to family and friends.  About 150 have made it out to the puzzle community. Note: This copy is number 133. Original solution & info card from the manufacturer is included but not photographed. It is still sealed and unopened. ************************************************************These puzzles are extras an...

Dovetail Burr is our follow-up to the Japanese Wood Joint puzzle we released last month. Both are part of the series that Frans designed nearly 20 years ago. Inspired by traditional Japanese woodworking joinery techniques, Dovetail Burr was Frans's IPP 20 Exchange puzzle.Dovetail Burr remains an utterly unique interlocking board burr concept despite its age. The presence of matched dovetail joints forces each pair of pieces on a given axis to interact with the other. This innovation creates a di...

I love unusual burr puzzles, and the shape of Cobalt immediately grabbed me. I hadn't seen one that looked anything like it before. After checking out the design and solution, I was doubly impressed. The tricky level 12.8 solution is made even more difficult by the unfamiliar interactions between pieces bent at 90 degrees. I decided to make it from two contrasting woods, mostly for the looks but also to give a bit of a hint to the solver.Construction of this puzzle is outstanding! Fit is very pr...

This puzzle is practically an hors d'oeuvre...a nifty little guy with a level 8.5.2 solution that is MUCH harder than you would expect. Whet your appetite with this unconventional mixed board/stick burr, then attack its more difficult cousin the Nebula.Construction of this puzzle is excellent, with notches joinery in the board pieces and solid milled burr pieces.Note: Color fading is present, see photos for detail. ************************************************************These puzzles are ex...

Another great one from Belgian burr builder Alfons Eyckmans, Barzoi is a very unique design. A twelve piece burr with interaction between the inner and outer components almost as if it behaves like a nested burr. Six outer pieces overlap six inner pieces with an offset on each axis to make this puzzle stand out when assembled.The solution is only a moderate level 13.2.1.1.1.2. Don't let that fool you, this puzzle is difficult! With a few different multi-piece movements, disassembly alone is a gr...

I'm a sucker for puzzles which take a common shape and do fun things with them. I especially like puzzles with cage constraints...they look good and can drastically increase complexity. Attis is a good example of that...by introducing a very simple cage, the solution of a straightforward burr becomes level 15.14.4. The contrast between the purpleheart and yellowheart makes it a looker!Construction of this puzzle is excellent; fit is dead-on, not too loose, not too tight.Note: Slight color fading...

Akaki's Picnic is a wonderfully creative Packing Puzzle. The goal is to pack each 3x3 cube into the Picnic Basket so that all pieces are flush. Assembling the cubes outside the basket is trivial; the challenge comes when you try to fill the container. The handle of the basket blocks your progress, causing you to analyze the situation and think outside the box.Akaki named the cubes after different foods you might find at a picnic. Each has a unique solution, representing a range of difficulties. ...