What r the chances of finding a shiny pokemon in a chain of 20?

Question

Please tell me the highest i have gotten was 39 but for no reason i broke my chain so im just wondering what are the chances of finding a shiny in a chain of 20

Answer 1

I think its about 1/4500 instead of 1/8452



If you can get to atleast 40 its like. 1/3

Answer 2

I think it has to be a chain of 42. I've never done it before, but there's videos on Youtube.

Answer 3

Very little your chances of finding a shiny pokemon are one in 4000 so most people just cheat