Beginner Exercise 11 / Solution

Solution  

There is death in the hane. Black reduces White's eye space twice, and then makes the nakade inside, reducing White to one eye. If White captures at and , Black can answer at and and White has no way out.

Note: can be played at a instead. Likewise, can be played at b instead.

Variation 1  

If White descends at , reduces the eye space further and nakade reduces White to just one eye. captures two stones...

Variation 1  

makes a throw-in and turns it into a false eye. If White tries to escape with , Black makes a net with . It is not possible for White to get out.

Variation 2  

is for example met by . White has not enough eyespace.

Pitfall  

In the Solution diagram, when captures a stone, Black should refrain from playing the atari at . It gives a possibility to open up a ko. If Black tries to avoid the ko with onwards, eventually he is caught in a net by and still has to fight the ko.

Failure  

The hasty nakade in the middle results in a seki.

Variation  

hane is met by , separating the eyespace to two eyes.