makes miai of a and b. The circled point provides the other eye.
Thanks to the position of and the throw-in at
, there is shortage of liberties.
This is yet another application of the Oki wants ikken tobi shape.
If White stretches at ,
captures two stones in a snapback.
To demonstrate the miai, if White connects at , Black makes an eye, capturing
in a net.
Many players would play the atari. Now White no longer fears shortage of liberties, and Black is dead. This is terribly vulgar. It does not use at all.
( at
)
Other will see the throw-in at , and then follow this diagram.
seems to work, but White simply descends at
and Black can't connect at a - shortage of liberties !
Go to Problem49