The Steuerrad Puzzle Box is a high-level difficulty puzzle that will have even experienced puzzlers stumped right from the start, thinking: “how could I possibly start solving this puzzle?!” You might feel the solution is impossible to reach, but don’t fear - the secret to success lies in turning the center wheel, and then finding the correct sequence of moves to open the box. 

Here at Kubiya, we are often asked, "what is the hardest puzzle in the world?" Well, there is no straight answer to that question due to the vast diversity of puzzles. But, the Steuerrad Puzzle Box just may be the hardest sequential puzzle box in the world. Don’t believe us? Try it out yourself!