Forum - Let's establish what joseki is

My observation is that joseki is different to "free play" in a sense that, in a sequence, there are local moves that are objectively superior to some alternatives.

I think that the above is necessary and sufficient condition for a move to be joseki.

We find this kind of moves in acute corners when player A approaches the corner and player B challenges him locally. I want to highlight that the latter is only an observation, not a condition.