What is the meaning of "go" in this sentence?
"Go" in this case means to try something. So "one go" here refers to "one round", "one try" or "one turn". A common way to use "go" in this context is in the expression "give it a go" which means to try something or have a turn at doing something. Ex: I tried to give the bike a go but it was too difficult to ride. Ex: Do you want to have a go at this game?