«Cast Equa» THE HARDEST Level 5 Puzzle by Hanayama

Hanayama Huzzle Cast Equa Puzzle How to solve Puzzles
Name:Cast Equa
Level (Complexity):Complex (9)
Type:Metal Puzzle
Object:Disassembling and reassembling
Number of components:3
Estimated time:1-10 Hours
Size:1 7/8 x 1 7/8 x 1 7/8 in / 4.6x4.6x4.6 cm
Packaging:cardboard: 75×119×45 mm
Materials used:cast zinc
Safety:no small parts, but keeping away from small children is advised
Where to buy:Check prices for Hanayama Cast Equa


Cast Equa has an interesting story behind it as if you’d look at some of the video materials on the internet, most of them will show you that it is a Level 6 puzzle, but the current listings depict it as Level 5 by Hanayama difficulty system.

What is it? Some kind of conspiracy?

Most probably the difficulty of this puzzle was reconsidered at some point as EVEN MORE difficult puzzles appeared on the line-up, like Cast Vortex or Cast Trinity.

But what if they wanted to add a little bit of deception to Level 5? To get people thinking that it shouldn’t be all that bad, but in the end, they receive a full-fledged Level 6.

I kid you not, I saw comments on the internet saying the whole families are not able to solve this puzzle for YEARS.

Even Cast Vortex is not that entirely frustrating.

So, Equa looks like a pyramid with the ball inside. The whole idea about it is that the pyramid, or triangle, is a ring of a planet and the small ball inside is the planet itself.

The planet actually consists of 2 intersecting “C”-type parts and the whole objective is to disassemble the puzzle.

Yes, you need to get the ball out of the construction and, at first, it seems completely impossible.

As for the quality — it is great, as usual with Hanayama, but some moves and interlocks have a bit more tension than your usual Hanayama puzzle. Usually, everything is super smooth, but with Equa, sometimes, you will need to apply force. Not much, but a considerable amount.

I am not sure whether it is intended but it actually does not worsen the overall impression of the puzzle. It just feels different.

Main Features

The funny thing about Cast Equa’s mechanism is that it is actually quite complex and you will be able to disassemble the puzzle only if you follow a very strict order of moves.

How do you understand the move is right and the one you need? Well, there’s no obvious way to understand that.

And what is even more peculiar, is that it is next to impossible to actually describe this moves with words. I kid you not, even if you look for a video solution — you will, most probably, have a hard time solving it.

That is why this puzzle is a real gem of level 5 and a must-have for every puzzle lover who likes a challenge.

Hanayama Huzzle Cast Equa Puzzle How to solve
Hanayama Huzzle Cast Equa Puzzle Level 5


I think I would display this puzzle in it’s disassembled state to everyone and it will be set on the most visible place on the shelf as a trophy to my utmost patience and zealous, vehement willpower.

Equa is a great Hanayama piece that will certainly take some time to solve, but at least it has a pattern. A very dim, slick and shady one, but a pattern nonetheless.

Certainly can be a bridge between your average level 5 (Cast Padlock) to an insanely difficult Cast Vortex.

Where to Buy

Check prices for Hanayama Cast Equa

Assembly Tips

  • It is very important to be as consistent and methodological with this kind of puzzles.
    • Try to document all your steps — write down what you before or after you progress further.
  • The reassembly is usually much harder. You just need to carefully remember the movers you did before the assembly.
  • Hanayama Huzzle Cast Equa puzzle solution video can be found below

Cast Equa ALTERNATIVE GLITCH solution video:

Important Notes

  • Made of high quality cast iron
  • Considered to be “Expert” (Level 5) puzzle according to Hanayama scoring. Other Level 5 puzzles, such as Cast Padlock and Cast Marble, can be found at their respective pages on PuzzleScore Hanayama brand page.

Hanayama Puzzles FAQ:

  • So what level is Cast Equa by Hanayama?
    • It is listed as level 5, but it was level 6 a few years ago. The difficulty is certainly on par with level 6.
  • Do Hanayama puzzles come with a solution?
    • No, there’s no solution sheet inside and there never will be. But Youtube is a great place to find a video solution in case you are having trouble.
  • Can you buy Hanayama’s puzzles in bulk sets?
    • You definitely can. Some shops offer the whole Hanayama line up for a decent price. You can find those via this link.
  • Are Hanayama puzzles suitable for kids?
    • Level 5 and 6 are definitely not for kids under 13-14 years. It is better to start with level 1-2 and then gradually go further. It will help train the dexterity and problem-solving mindset gradually.
  • Are Hanayama puzzles a good gift?
    • I’d say if you wish to give person “hours of frustrating fun” — you definitely need to give them Hanayama puzzle. These puzzles are challenging, interesting and absolutely well made, so yes, it will be a great gift to anyone.
  • How does Cast Equa compare to other Level 5 Hanayama puzzles?
    • It is definitely harder than the most level-5. Then again, every Hanayama puzzle is a very personal experience and the time to solution greatly depends on your skills, experience, and amount of patience. Also luck, sometimes. There are numerous testimonies of people solving the hardest puzzle s in minutes, but struggling with easier ones for days or even months.

Our main goal is to create a platform where people around the world will be able to find, share, read, score different puzzles, showcase their collections, and uncover amazing stories about great puzzle engineers.
We truly hope that our deeds will help to further popularize intellectual activities and more and more people will become avid puzzlers!


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