Gokyo Shumyo, Section 1, Problem 39 / Solution

White lives  

This is a variation of Gokyo Shumyo, Section 1, Problem 81. White makes two eyes with one strike. There is an eye at each circled point.

Main line  

The main line just shows the completion of the first eye.

Continuation 1  

Now and are miai for the protection of the second eye.

Continuation 2  

If the circled liberties at a and b were filled, Black could kill this way.

Failure 1a  

is a natural move. But up to , a and b are left as miai for the kill.

Failure 1b  

Here and are miai: up to is one way for White to die.

Failure 2  

The 1-2 point is another natural point to try, to make life, but Black can occupy , which is connected to the marked stone through a large monkey jump.