This is a design by Jurgen Reiche, so in simple terms it is a puzzle that looks easy... but isn't! There are plenty of near solutions and discoveries to make.It is no surprise that Allan Stein made this his IPP40 (2023) exchange puzzle.I will be listing most days, so feel free to combine shipping or ask me to hold.Shipping is $6 UK and $18 Elsewhere.

This is a Mint condition puzzle with the original box, made from Walnut and Aluminium.Dated and Signed by Eric Fuller.Description from the cubic Dissection Website, with thanks:5L Bin is an engaging binary sequence puzzle from designer Pit Khiam Goh. Known for his work in creating complex sequential mechanisms, 5L Bin results from Pit folding n-ary concepts into a packing puzzle format. The goal is to remove all five pieces and then pack them back into the box.5L Bin is an extremely well made pu...

The most difficult puzzle I have designed. The puzzle consists of 15 pieces. Some pieces can be slid under the edge. Goal: Make the numbers 1 to 9 from left to right in the frame There are different possibilities. But there is only one possibility to slide to a magic square. If you carefully open the puzzle you will see a 4. Remember that.