Crack the Cylinder
The Hanayama Cylinder Puzzle looks simple from the outside: a small, solid-looking metal cylinder with no obvious clue about how it comes apart.
Inside are five interlocking metal pieces that must be separated in the correct way. The exterior reveals very little about their arrangement, so the puzzle has a strong safe-cracking feel without relying on an actual lock or combination.
The challenge is to work out how the internal components move, separate the cylinder completely, and then reconstruct it.
A Take-Apart Puzzle With Hidden Geometry
Cylinder is a take-apart mechanical puzzle where most of the important information is concealed inside the object.
Unlike an open interlocking puzzle, you cannot simply study every piece before making a move. Instead, you have to learn from the small amount of movement the cylinder allows and gradually form an idea of how the five components fit together.
The puzzle rewards careful observation and controlled experimentation. Random pulling or force will not reveal the solution.
Designed by Vesa Timonen
Cylinder was designed by Finnish puzzle designer Vesa Timonen, whose work appears throughout the Hanayama Cast Puzzle collection.
The design went through several iterations before reaching its final form, with the challenge concentrated inside a compact cylindrical body.
That simplicity is part of what makes the puzzle effective. There are no decorative elements or obvious mechanical clues to distract from the central problem: understanding the structure hidden inside.
Taking It Apart Is Only Half the Solve
Separating the five pieces gives you a much clearer view of how Cylinder works, but the puzzle is not finished until everything is back in its original form.
Reassembly requires you to understand the relationship between the pieces well enough to reverse the process. A solver who manages to get the cylinder apart by experimentation may discover that putting it back together demands a much more precise understanding of the mechanism.
A Compact Hanayama Challenge
Kubiya rates Cylinder at 3/5 difficulty, making it a solid intermediate challenge for someone who already enjoys mechanical puzzles but does not necessarily want one of the most extreme Hanayama designs.
It is especially well suited for:
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Hanayama collectors
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take-apart puzzle fans
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fans of Vesa Timonen
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metal puzzle enthusiasts
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solvers who enjoy concealed mechanisms
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adults and teens
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anyone who likes compact puzzles with more going on inside than the exterior suggests
