Kyu Exercise 64 / Solution

Solution.  

The solution starts with . This is an unconditional kill.

Main line.  

This is the main line. After , Black cannot make his eye at a due to shortage of liberties.

Variation 1.  

If , then connects. This is a case of double shortage of liberties.

Variation 2.  

Black has only one eye.

Failures

Failure 1.  

If here, then turns the status into a ko.

Failure 2.  

Although the hane at is a strong move, but it still ends up in a ko. After , if White a connects, then Black b continues with the ko.

Failure 3.  

is a common tesuji, but the result is still a ko.