Introduction
The lesson video is the following
Main position
During this lesson, we’ve seen how to manage this bad after the joseki on the left.
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In this case, the proper move for black now is to remove the bad aji and capture the marked stone with A.
Black mistake
The approach on the bottom right seems very natural, but after white shoulder hit at 6, black has no good answer as he would need to play A and B at the same time.
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It is important to take time to manage this kind of bad aji early on.