3-4 point high approach one-space low pincer attachment noseki
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White is tricked
Correct for White
Joseki according to Ishida
The combination of and is a bit of a trick play just short of joseki.
A gobase search yields only 13 games. That's a big clue that it's not joseki, but a situational play. In all the games Black had something in the lower left corner or side. It might be a wall, an enclosure, a 4-4 stone, or an approach from the left side. In one case it was a pincer.
If White plays like this, her influence obtained towards the bottom will only work if she has some stones there herself. Black has sente and can use it to build at a.
White's capture is one line higher and therefore much more powerful, also due to the extra forcing move at .
White can force with 1 and then secure the corner and an outside connection in sente with 3. Also seen is a pro game with at a leading to a large scale fight.