I watched the entire thing, but I know close to nothing about Go. I found it frustrating that they didn’t attempt to explain what was so unexpected about some o

I watched the entire thing, but I know close to nothing about Go. I found it frustrating that they didn’t attempt to explain what was so unexpected about some of the specific moves, but just focused on everyone’s reactions to them. Is there somewhere I could read a beginner-friendly explanation of what was so significant about the moves, and how and why they changed the games?