Hanayama Nutcase

I picked up the Hanayama Nutcase last week and finally got a chance to dedicate a little time to it over the weekend. Overall, I liked the puzzle. It felt impossible at first and it’s always satisfying to solve a puzzle that starts off as “impossible”.

The object of the puzzle, like most Hanayama puzzles is to take it apart and then put it back together. The two nuts easily turn, but there is no apparent way to remove them from the bolt.

Closer inspection reveals some interesting details. There is a loose nut that rattles around inside the bolt. I quickly determined that it was unlikely to help in the solution. The inside of the bolt was smooth and there was nothing for that loose bolt to catch onto, nor were there any pockets for it to fit into.

The outside of the bolt, however, held some of the clues needed for the solution. After playing with this puzzle for about an hour, I set it down to go take a shower. It was at that moment that I had an idea of what was going on. The idea just hit me upside the head and I was suddenly sure I had the answer. At that point, I was thinking that I could solve it in 5 minutes.Unfortunately, it wasn’t that easy. Although my solution was correct, it took another hour or so to finally get it right.

This puzzle is a bit loose and tinkery. Even when you have the solution, it isn’t exactly easy to get everything perfect, thus the puzzle isn’t quite as enjoyable as it should be. I have a number of Hanayama puzzles that are of excellent build quality and tolerances, this one just doesn’t measure up.

solved puzzle, no secrets revealed

Puzzle Available at PuzzleMaster

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