4-4 point low approach attach
Keywords: Joseki
at:
b wedge (Requires a favourable ladder.)
c invade
at d is not joseki, see BQM 97.
iopq: How do you respond do 'e' and why is it a bad move?
Mef: I think
at 'e' can be met with
at 'b', now white will have to pull back to something like 'a' anyway, and B will be able to give a stronger response since his primary shape worry had been fixed for him.
iopq: f aims at cutting at b later. Is it any different than an immediate cut at b?