BePuzzled Quartet Hanayama Metal Brainteaser Puzzle – Level 6, Ages 12+

The Hanayama Quartet is a cast metal brainteaser puzzle designed by Mine Uyematsu. It consists of four interlocking pieces that you must separate and then reassemble. Rated at difficulty Level 6 (very difficult), this puzzle is aimed at ages 12 and up and is known for its intricate construction and high-quality finish.

What makes the Quartet puzzle so difficult?

Level 6 is the highest difficulty rating Hanayama uses, reserved for puzzles that stump even experienced solvers. The four pieces are linked in a way that isn't obvious. Inventor Mine Uyematsu designed the bond to be deceptively tight. There are two known approaches to disassembling it, and figuring out either one requires careful observation of how the pieces interlock.

How to play: separate and reassemble

The first challenge is taking the puzzle apart. Once you've succeeded, you must return all four pieces to their original arrangement. The puzzle is solved when it looks exactly as it did when new. A solution is included in the package in case you get stuck.

Puzzle specifications

Common questions about the Quartet puzzle

What does Level 6 mean for this puzzle?

Hanayama rates their puzzles from 1 (easy) to 6 (most challenging). Level 6 indicates a puzzle that most people find very difficult to solve without hints or the included solution.

Is the solution included?

Yes, a paper solution is inside the package, but try to solve it without looking for a true test of your skills.

What age is this puzzle suitable for?

The manufacturer recommends it for ages 12 and up due to the small metal pieces and the complex logic required.

Can this puzzle be used as a fidget toy?

Yes, its compact metal construction makes it a satisfying object to handle and manipulate, though the primary purpose is solving the brainteaser.