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KyuExercise27

 

Kyu Exercise 27 / Solution
Sub-page of KyuExercise27

Instead of showing the main line straightaway, I will try presentating it as a discussion style. --unkx80

[Diagram]
Attempt 1

Does B1 here work?


[Diagram]
Attempt 1

No, W2 kills, think bulky five.


[Diagram]
Attempt 2

Does B1 here work?


[Diagram]
Attempt 2

Unfortunately, the same W2 is the vital point that kills.


[Diagram]
Attempt 3

Does the jump at B1 work?


[Diagram]
Attempt 3

W2 reduces the eyespace, and then the placement at W4 kills.


[Diagram]
Attempt 4

It seems that the common point in killing has been at B1. How about playing B1 here? It seems most likely to live.


[Diagram]
Black lives 1

If W2 crawls in, B3 lives easily.


[Diagram]
Black lives 2

Now W2 tries to occupy the point required to make the second eye. B3 is natural, and B5 captures W2 in a connect-and-die.


[Diagram]
Black lives 3

What about W2 then? B3 captures the W2 stone and lives.


[Diagram]
Finally...

So, White tries again with W2. Black answers with B3, and it seems to live...


[Diagram]
Finally...

And W4 wedges in. Ah... Black is dead, due to shortage of liberties, and playing at a puts Black under self-atari.



Conclusion: In this problem, Black cannot live.



This is a copy of the living page "Kyu Exercise 27 / Solution" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.