1st and 2nd versions of double 8-ring puzzles 1/2

With comparision between 2 similar kind of puzzles, we can easily figure out how they can be solved smoothly.I've tried my best to show the process as 'slow motion' as I could do, in order to make the view get the process. I would strongly recommend you continue to watch the third version of this kind. And thank you very much for your watching!