Kyu Exercise 152 / Solution

Solution  

The key move is the clamp at .

Solution ( at )  

If connects here, then captures two black stones and is an atari on the four black stones. As a result, is unable to prevent white from living with .

Solution  

If connects here, then captures all the black stones in a snapback.

Failure ( at )  

Capturing with is a mistake. After makes a throw-in, can only make a ko which black takes first.

Failure  

This is hardly worth discussing.