Beginner Exercise 13 / Solution

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Solution

[Diagram]

It's easiest to make eyes in the corner

B1 takes the corner for eye space. Now the best White can do is to minimize the eye space available, but the available space is sufficient to ensure life. a and b are miai, separating two eyes.


Variations

[Diagram]

A kill for white?

What's wrong with white trying W1 here? Immediate capture B2 is a serious mistake - it just produces a false eye.

[Diagram]

Thanks for the present

B2 here is simple and effective. White's stone can't escape.

[Diagram]

Inside attack fails too

W1 here doesn't help - after the sequence in the diagram, a and b are miai for life with points. (It's a seki even after White plays both a and b.)


Failures

[Diagram]

Failure 1: Extending in the wrong direction

Black, in his attempt to take more of the side, dies after W2 and W4: on the second line, six die but eight live.

[Diagram]

Failure 2: Greedy hane

B1 is greedy - W2 throw-in reduces Black eyespace and kills.



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