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BeginnerExercise8

 

Beginner Exercise 8 Solution
  Difficulty: Beginner   Keywords: Problem

lavalyn 17k again - maybe I should stop submitting these spoilers.

Dieter: only when you stop feeling a beginner. Feel free !''

[Diagram]
Well there goes the eyespace.

The eyespace around a is a false eye. To live, White must make two eyes in the larger space that contains three black stones. B1 hits the vital point of the position.


[Diagram]
Looks like seki, doesn't it?

We'll fill up some liberties - then...


[Diagram]
Maybe not - B3 at the marked point.

White dies with a bulky five shape.


[Diagram]
Even if Black doesn't play

Even if Black doesn't play again in this area (B2 elsewhere) White still dies with a squared four.



[Diagram]
White seki.

If White takes the vital point, she forms a seki. An attempt by Black to kill the group instead yields either a bent four or a twisted four both of which are live shapes. These are shown in the failure diagrams below.


[Diagram]
White ignores seki.

(B2 elsewhere.) If White doesn't understand seki and attempts to capture using W1 and W3, then White is left with a bent three; Black can now kill White by playing back at BS.



unkx80: Adding one failure diagram.

[Diagram]
Failure

Playing at B1 does not help. W2 occupies the vital point, and White lives in the shape of twisted four.



Easco adding another failure diagram.

[Diagram]
Failure.

Playing at B1 in this diagram doesn't help either. Again, W2 occupies the vital point, and White lives in the shape of bent four.





This is a copy of the living page "Beginner Exercise 8 Solution" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.