Kyu Exercise 10 / Solution

Nakade  

Black 1 kills by nakade. There's no way White can make two eyes now.

Var 1: Eye in the stomach  

If , makes an eye in the stomach. If White does play inside the group, Black can fill all outside liberties and eventually atari at either a or c. If White next plays a or c, Black b makes a rabbitty six inside White's eyespace.

Var 2: Bulky five  

If here, threatens to connect to the vital stone, next almost fills with a bulky five.

Failure at 3  

Black 3 here is a mistake. turns the position into seki.

Failure at 1  

here is also wrong. forces and then occupies the vital point. Next, Black a doesn't create a killing shape.

Failure (iii) at 1  

In both cases, White is able to take the vital point.