Long time ago I bought this puzzle game in USA during a trip. I love it and still have it. I decided to make a copy of it.
First I wanted to make a “print in place” version but I didn't like the render (and it was taking lot of space on print bed). So here is my version.
You have to print :
-2X the horseshoe part,
-2X the chain link part,
-1X the ring.
No support required, there is a long bridge on the horseshoe part but a good ventilated printer will make it fine. (print this puzzle in a strong material because people will pull on it a lot. I made it with a strong PLA+ and it remains ok until now)
Then you can put the ring in the middle, the two chain links and close them tight with strong glue.
The author marked this model as their own original creation.