lovelove said [too many nested quotes for the forum software]
I don't know if this is joseki, but my cut (D4) was a natural move, and the white stone on low side is in a good position.


I think Ed is too blindly applying his broken shape detector and it is far from clear this result is good for black; in fact probably I prefer white. Although it is true white has blighted his f3 stones, it is not dead yet, whereas black has completely killed his own 2 stones in the corner, making white totally alive with about 10 points of territory. Black's wall is not alive and could even be a weak group, and there is a cut at e5 to deal with. The key question is how weak is black's wall versus white's k3 stone: if black plays a checking extension at m3 then white can g4 or so which helps k3 and weakens the wall, if black h3 then white is happy to n3. I find it difficult to know how to continue as black.