Introduction
The lesson video is the following
Main position
During this lesson, we’ve seen how to manage this overplay after the joseki on the right.
White is supposed to extend at A to finish the joseki. He is trying to profit hoping black would defend the corner and come back at A later.
Black punishes
But black can attack strongly here by first capping at 2 and then peep at 6.
White has no choice but to defend himself and black can come back to pincer the stone with 8.