BQM 424
fernobob:Recently in a handicap game as black I was faced with this joseki variant. I considered responding at a, but this seemed a little slow and could cause my corner to become enclosed. In the end I responded at b, intending to split the white groups apart, but as this resulted in my corner dying, I suspect it was not the best move. What should I do here?
![[Diagram]](diagrams/12/6eb4fc325c279659b7550ca1aff1d696.png)
![[Diagram]](diagrams/32/f10b6b3040e69b5886baf29d44500348.png)
unkx80: You can consider 
. It makes miai of attacking 
and 
as well as 
, especially if the stone is unsupported?.
Dieter See also the fundamental relationship between kosumi and keima in Haengma tutorial for beginners
![[Diagram]](diagrams/19/ba24ae4170fd0540bf87f817c62c11ba.png)
Bill: Black has various options, including a to f. A lot depends upon the rest of the board, but Black can play at a or b to keep the White stones separated and attack both at once. He can also play at c,d, or f to secure the corner and attack the base of at the same time; these plays also prepare to attack both White formations. c and f threaten g. e attacks Black's larger group, and White's stones are still not connected. However, e can lead to more complications than the other plays.
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