Kyu Exercise 4 / Solution

Placement on the second line.  

The simpler solution would be a placement on the second line. forces , and reduces the eye at the bottom to one in sente.

Placement on the second line.  

Why sente? Because if White obstinately makes the other eye with , Black captures White with .

Variation.  

If simply captures the two Black stones, then cuts and captures two White stones.

Placement on the first line.  

The placement at the first line also works, but and are probably a blind spot.

Variation.  

If simply captures the two Black stones, Black can simply set up a snapback with and .

Failure.  

is incorrect. Although is a ploy to reduce the eye in sente, but answers correctly and lives.

Failure.  

and are miai.

Atari.  

The atari at 1 is a mistake.

Atari.  

Black makes a throw-in at , but White occupies the vital point of the bulky five with and lives.