From Mr. Puzzle website:Edward Hordern Puzzle Exchange - Chicago, USA, August 2003The puzzle is to take the SEARious burr apart. Modeled on Chicago's tallest building, the Sears Tower, Brian created this 13 piece interlocking burr.But it's so much more than just an interlocking burr; incorporating the use of tools supplied as part of the puzzle it's biggest challenge is to open the secret lock. It will take 13 steps to unlock the complex internal mechanism. The elegant solutions does not involve...

This is a particularly difficult puzzle both to take apart and reassemble. It takes 16 moves to remove the first piece. Beautifully crafted. Quite loose as it was produced.Come with original box and full solution.

I will combine shipping costShipping cost < 500 gramm is 6.20 Euro

Here's one you don't see every day!A fantastic lock that really puts a smile on your face😊Original booklet included.Please message me with any questions.

Katie Koala and her Joey Verne, by Brian Young/Mr. Puzzle. This is an immensely large and complicated puzzle. Having played with it, I'm ready to pass it on to the next puzzler. By itself, it weighs 3 lbs 11 oz., so you can assume that shipping for this will be over $50 outside the US. This one is #53 out of a total of 65 made. The original cost was $1360 Australian dollars.

A lovely puzzle by the very collectable Roger D.Great condition and working order. No external tools needed😊Feel free to contact me with any questions

A lovely puzzle by the very collectable Roger D.Great condition and working order.Feel free to contact me with any questions

Classifies as 2.1 trick/secret opening. About 8cm across, mainly laser-cut MDF, top layer acrylic and below some wood veneer. Goal is to get the coin out, some steps are involved. This puzzle was manufactured by Siebenstein Spiele (Jürgen Reiche) and was the exchange puzzle for Allen Stein (puzzlemaster.ca) at IPP35 Ottawa.Note that the picture of two puzzles is just to encourage you to look at the other lot, this lot is for the puzzle on the left only.Reviews: (top layer veneer is different fr...

Classifies as 2.1 trick/secret opening. About 8cm across, mainly laser-cut MDF, top layer acrylic and below some wood veneer. Goal is to get the coin out, some steps are involved. This puzzle was manufactured by Siebenstein Spiele (Jürgen Reiche) and was the competition puzzle for Allen Stein (puzzlemaster.ca) at IPP35 Ottawa.Note that the picture of two puzzles is just to encourage you to look at the other lot, this lot is for the puzzle on the right only.The two "04" tabs were loose when I un...

This is a limited edition puzzle box, 4 of 4, by Kelly Snake.It is a 3 move box and once opened, it has the beautiful smell of aromatic cedar.Comes with instruction sheet.Please contact me for any extra info.

Open the lock. Solution is included. This is the metal version of this puzzle.Shipping can be calculated at auction close, so please allow time for that before sending payment. Buyer is responsible for PayPal fees. If you have any questions just send me an email. Many thanks!

The puzzles will be sent with the original black leather box.Shipping can be calculated at auction close, so please allow time for that before sending payment. Buyer is responsible for PayPal fees. If you have any questions just send me an email. Many thanks!

Take it apart. Several steps is needed to open this puzzle.The puzzles will be sent with the original black bag.Shipping can be calculated at auction close, so please allow time for that before sending payment. Buyer is responsible for PayPal fees. If you have any questions just send me an email. Many thanks!

Neat Lock was my exchange puzzle at IPP in 2003. It uses a clever trick from a 19thC lock in my collection. Mr Splichal who made the locks has now asked me to auction for him one of the first two prototypes (he does not speak English). I had the other early prototype and it is now in the good and fast-solving hands of Eric Marks - see http://heavymetalpuzzles.blogspot.co.uk/2016/02/ipp-trick-padlocks.html. The lock is fully functional and has a nicer key than the final product, but has only a s...

Open the cylinder and remove the coin.

This is the extreme tessarisis 4 of 5 made and designed by the company sonic games. This is the 4th puzzle in the Isis series. The puzzle is in excellent condition. The puzzle still remains unsolved and with the original packaging. This means the key and the code inside the puzzle have never been registered

This listing is for the Bookend, Clamped and Cornered Burrs, which is the first, second and third of a 4-part set of Constrained Burrs designed by Logan Kleinwaks. Below are additional details from Cubic Dissection: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 soluti...

Exchange puzzle for IPP17.

This 25 piece puzzle utilizes 4 pin mazes on the key piece along with four moving pin pieces to create a 4 bit binary numerical sequence (not gray code). Other Binary puzzles use Gray Code where only one piece moves at a time for each step, with Binary sometimes multiple pieces need to move for a step. 45 moves to remove the key piece. It was entered into the IPP35 Design Competition. Only 7 were made. A neat design but due to too many time consuming machine setups these will not be made a...

This is a lighter plastic version of the Revomaze. The green version is the second easiest of the 4 colors.