The puzzle has unique level 17-22 solution, and is not meant to be solved by a human being. It can be disassembled if you try harder but assembling the puzzle without any clue is almost impossible. It will be great if you can disassemble the first piece. Disassembling the second piece is more challenging and when you successfully reach the point, we suggest you stop there and reassemble the first two pieces before you forget what you have done.

By choosing an appropriate orientation and how to hold the pieces, the puzzle can be assembled only by two hands. Many pieces have a tendency to move in different directions at will when being assembled or disassembled, which makes it difficult to know which state you are in.