Joseki-related life-and-death example 4
Black should under almost no circumstances ignore the double kakari and let White play . But how does Black continue if he decides that he has to play this line after all?
Black plays the kikashi of and before living in the corner, in accordance with the proverb.
--Tasky (3d) I would absolutely not call this exchanges kikashi. Those exchanges are actually pretty bad for Black, since White gets very solid outside. Black plays and only because she has to make life; she would never play those exchanges of her own free will.
hnishy: Kikashi can be from inside or outside. The proverb "Play Kikashi Before Defending" refers to kikashi from outside only. So the term is right, the reference to the proverb here is wrong.
The hane at is absolutely necessary for living. Without it the black group dies.
A very extensive analysis of the life-and-death can be found at J-groups.
guess: With the extra liberty at , black doesn't fear a white placement at so he can extend down the side instead.
Alternative to Black's san-san
Redbear: Black's retreat to the san-san in the 2nd diagram only results in a couple of points of territory after White squeezes the resulting Long J-Group with a placement at the 1-2 point.
This diagram shows a new recommended sequence resulting in significantly more points in the corner for Black.