Gokyo Shumyo, Section 1, Problem 60 / Solution

Main line  

is another ambush on the first line. is the inevitable throw-in tesuji.

Continuation  

If Black captures, creates shortage of liberties.

Variation  

If Black plays at , a or b, White will always answer at the vital point .

Comment on the preceding diagram  

Malcolm I'm not sure, but the comment in the previous diagram may not be entirely correct. Here lives and may be better than a.

Failure 3  

at also kills.