This puzzle made of hand-cast concrete blocks combines tactile experience with geometric thinking. The pieces hold together magnetically - tactile rather than visible - making the puzzle particularly accessible for blind and visually impaired people. There are two different shapes of blocks that can be used to build different geometric shapes and figures, the shape where all the blocks have to be placed in the correct position is particularly difficult: to create a rhomboid dodecahedron!

The idea for this puzzle came about while we were thinking about our design for the Theaterformen festival - inspired by intensive discussions about accessibility with Sophia Neises and Noa Winter.