First of all, are you allowed to use the end crystal glitch to skip the dragon fight instead of actually killing it?

What if one of the end portals is obstructed by another structure? Is the run invalid? Do you just fill in the available eyes?

Also, I have a strat idea for 1.9 all portals SSG You could use a seed that has a 12 eye so you don’t have to go to that stronghold at all. You could do this in 1.16 too but it wouldn’t be nearly as effective.

I’m not actually going to use these things (I’m a terrible speedrunner), I was just wondering if it could help someone.

If it's glitchless you are not allowed to use the end crystal glitch no.

Idk what happens when a portal is obstructed because it's like so rare but probably invalid.

I was talking about glitched, since you’re not actually killing the dragon I was wondering if it would still be allowed. Thanks for responding, but I was looking for someone who knew these answers for sure.