[very rare] Chess Cubes

You are bidding on the [very rare] Chess Cubes - add it to your collection. This is an exchange puzzle by Peter Hajek at the 19th International Puzzle Party (IPP) in London 1999. Not many of these puzzles were sold, and the remains of the first and only batch were put into storage by Peter, which he later packaged for the party. Originally designed by a group of students at the faculty of Engineering in Presov, Solvakia and produced commercially by Professor Hoffmanin 1991.

The Chess Cubes have a number of tasks and I have had a lot of fun with these interlocking pieces. Loads of hours of enjoyment. 

1. Make a 3x3x3 one colour cube which does not interlock (the cubes are provided with this task solved, find a different solution).

 2. Make two different 3x3x3 one-colour cubes which do not fall apart when lifted by any of the six surface layers. Peggs in holes count as sufficient to hold the cubes together.

3. Make a 4x4x cuboid, leaving out two queens. 

Numerous other tasks are possible by combining all the pieces and many remain unexplored. 

The puzzle will be shipped from England, United Kingdom.

PayPal or Bank Transfer payments only. No PayPal fees. If payment is to be made via PayPal, I am requesting payment via PayPal Friends and Family - if you have any reservations about paying with this method, please see my feedback! 

Buyer chooses the shipping options after purchase, when prices will be shared. Insurance is optional, but the buyer has to cover it if it is desired. I kindly ask that you hold off on paying until after I calculate and message final shipping costs to be added to the final bid.

The puzzle will be well-packaged - Ships unassembled - and will be shipped promptly after receiving payment. Shipping can be combined if you are winning more than one of my auctions.