6N Puzzle | Hide the Holes
6N Puzzle | Hide the Holes
In stock
Ships from Prague within 1-3 business days.
Estimated delivery: 5-10 business days (EU) · 10-20 business days (rest of world).
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6N is an expert-level 3D packing puzzle designed by Osanori Yamamoto. Using 6 identical N-shaped pieces, your goal is to fill the cage so that every entrance is completely covered - no gaps, no exposed holes. 6 pieces, Expert difficulty, 4+ hours solve time. One of the most elegant same-piece packing puzzles ever designed.
Best for: adults who enjoy deep spatial reasoning and long, meditative solving sessions - especially fans of designer puzzles and Osanori Yamamoto's work.
Building a cube from identical pieces sounds straightforward. It isn't. The genius of 6N is that every N-shaped piece is a mirror of the same logic - and the cage's covered-entrance constraint eliminates almost every intuitive approach you'll try. Most solvers spend hours convinced they're close. They're not.
What Makes 6N Special
Most packing puzzles use varied shapes to guide the solver toward the solution. 6N does the opposite. All 6 pieces are truly identical N-shaped forms - no differentiation, no hints, no asymmetry to exploit. That is a serious design constraint, and Osanori Yamamoto turned it into an award-worthy puzzle. 6N was an entry into the Tokyo Puzzle Design Competition in 2025. The victory condition is exact: all 6 pieces packed inside the cage, all 4 entrances fully covered, no piece protruding. Nothing approximate. Either it's solved or it isn't.
Specs
- Designer: Osanori Yamamoto
- Pieces: 6 + 1 (pieces + frame)
- Difficulty: Expert
- Solve time: 4+ hours
- Trains: Spatial Thinking
- Material: 3D-printed
- Size: 55mm x 55mm x 55mm
Frequently Asked Questions
What is the 6N puzzle?
The 6N puzzle is an expert-level 3D packing puzzle by Osanori Yamamoto. You must fit 6 identical N-shaped pieces into a cage so that all entrances are covered - no piece may protrude.
How hard is the 6N packing puzzle?
Very hard. Rated Expert difficulty with a typical solve time of 4+ hours. The identical-piece constraint eliminates shortcut thinking and demands pure spatial reasoning.
Who is the 6N puzzle best for?
Serious puzzle enthusiasts, fans of Osanori Yamamoto's designs, and anyone who wants a long, rewarding solo challenge that tests 3D spatial imagination.
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FAQ
Do You Ship Worldwide?
Yes. I ship anywhere. Orders typically arrive in 1-3 weeks depending on your location and how customs is behaving.
How Long Does Processing Take?
Some puzzles are produced on demand in our studio in Czech Republic. Processing usually takes 3-5 days before your order ships. During busier seasons it may take a bit longer.
Do Puzzles Come With Solutions?
Usually not. Sometimes you can find the solution on my YouTube channel. If not, feel free to reach out for hints!
What If I Get Stuck?
Good. That's the whole point.
But if "stuck" turns into "frustrated and not having fun anymore," email me. I'll send you a hint if you want a nudge. No judgment. Some puzzles took me days. A few took weeks. Some took months. Some took years. And some I have never solved - and that is part of the appeal.
Returns & Exchanges
Yes. You have 30 days. If the puzzle isn't right for you, send it back in the condition you got it and I'll refund you. If something arrived damaged or wrong, tell me and I'll fix it. Please be patient as we're a small team!
Are These Good Gifts?
People LOVE buying our puzzles as gifts. They're physical, they last forever, they don't need batteries, and they create a real moment - the person sits down, struggles, laughs, eventually solves it. That memory sticks.
If you're gifting, check the difficulty rating and pick something one notch below what you think the person can handle. Easier than you'd guess is usually the right call.
How Are the Puzzles Made?
All the puzzles are made with the help of my partner Puzzle Guy and his 3D printing studio in Czech Republic.
What Is a TIC Puzzle?
TIC stands for Turning Interlocking Cubes. They're a family of puzzles where wooden pieces interlock and rotate into a cube shape. The solve isn't just sliding pieces - you have to find the right rotations, in the right order. They're some of my favorite puzzles in the store.
Why Is Everything Turquoise?
I grew up near the sea in Israel. When life got loud or overwhelming, that's where I went to reset. Sit, watch the water, breathe. Things would settle.
The turquoise on this site isn't a branding choice I picked from a swatch. It's that color. The one I still see when I close my eyes and think of the place that calmed me down. I want you to feel a small version of that when you pick up a puzzle - a quiet moment, hands busy, head clear.