Introduction
The BePuzzled Hanayama Key Metal Brainteaser Puzzle is a Mensa-rated disentanglement puzzle designed to challenge and entertain. This Level 1 puzzle, suitable for ages 12 and up, features two intricately linked metal keys that appear inseparable. The objective is to separate the two key pieces and then reassemble them.
Originating from the 19th-century puzzle craze, this design is a classic test of logic and spatial reasoning. The hint provided by the original creators is "Enlarge," suggesting a need to think beyond simple force.
Product Overview

Image: The BePuzzled Hanayama Key Metal Brainteaser Puzzle in its assembled state, showing two interconnected key-shaped pieces.
The puzzle consists of two distinct metal pieces, each shaped like a key. These pieces are designed to interlock in a complex manner, requiring a specific sequence of movements to separate them. The puzzle is crafted from high-quality metal, ensuring durability and a satisfying tactile experience.

Image: The puzzle held in a hand, demonstrating its compact and portable size.
Setup
The BePuzzled Hanayama Key Metal Brainteaser Puzzle comes pre-assembled in its interlocked state. No initial setup is required other than removing it from its packaging.
Before attempting to solve, familiarize yourself with the two key pieces. Observe their shapes, curves, and how they currently interlock. This initial observation can provide clues for the disentanglement process.

Image: The puzzle packaging, highlighting the "Level 1" difficulty rating and a QR code for additional information. The QR code links to https://bit.ly/3LL8fNO?r=qr.
Operating the Puzzle (Solving Instructions)
The primary operation of this puzzle involves two stages: disentanglement and reassembly.
- Disentanglement: The goal is to separate the two metal key pieces. This requires careful manipulation, rotation, and sliding of the pieces relative to each other. Avoid using excessive force, as the puzzle is designed to be solved through clever movements, not brute strength. Explore different angles and pathways. The solution often involves a specific, non-obvious sequence of moves.
- Reassembly: Once separated, the challenge is to put the two key pieces back together into their original interlocked state. This typically follows the reverse steps of the disentanglement process. Understanding how the pieces come apart is key to putting them back together.
Patience and persistence are crucial. Many solvers find it helpful to set the puzzle aside and return to it with a fresh perspective if they become stuck.

Image: The two key pieces of the puzzle shown separated, illustrating the objective of the disentanglement process.

Image: A close-up view of the individual key pieces after being separated.
Maintenance
- Cleaning: Wipe the puzzle with a soft, dry cloth to remove dust or fingerprints. Avoid using abrasive cleaners or harsh chemicals, as these may damage the metal finish.
- Storage: Store the puzzle in a dry environment to prevent tarnishing or corrosion. Keep it away from extreme temperatures and humidity.
- Handling: Handle the puzzle with care. While durable, dropping it on hard surfaces may cause cosmetic damage.
Troubleshooting
If you find yourself stuck and unable to solve the puzzle:
- Take a Break: Sometimes, stepping away from the puzzle and returning to it later with a fresh mind can help you see new possibilities.
- Re-examine: Carefully inspect the pieces again. Look for any subtle movements or alignments you might have missed.
- Avoid Force: The puzzle is designed to be solved without force. If pieces are not moving, it means you haven't found the correct sequence or angle. Forcing them can damage the puzzle.
- Seek Hints (Optional): If you are truly frustrated, you may look for hints online. However, the satisfaction comes from solving it yourself. The manufacturer provides a hint: "Enlarge."
Specifications
| Attribute | Detail |
|---|---|
| Brand | BePuzzled (Hanayama) |
| Model Number | 30804 |
| Product Dimensions | 4.75 x 3 x 0.1 inches |
| Item Weight | 3.2 ounces |
| Mensa Rating | Level 1 (Easy) |
| Recommended Age | 12 years and up |
| Material | Cast Metal |
| Manufacturer | University Games |
Official Product Videos
Hanayama Metal Brain Teaser Puzzles - Collect Them All!
Video Description: An official video from University Games showcasing the range of Hanayama Metal Brain Teaser Puzzles, including various designs and difficulty levels. This video provides an overview of the collection and the general concept of these puzzles.
AmazonVideo (General Hanayama Puzzle Overview)
Video Description: A general merchant video providing a brief overview of Hanayama puzzles, demonstrating their intricate nature and the challenge they present.
Warranty and Support
For any questions, concerns, or support regarding your BePuzzled Hanayama Metal Brainteaser Puzzle, please contact the manufacturer:
- Manufacturer: University Games
- Support Email: consumer@ugames.com
Please retain your proof of purchase for any warranty claims.





