Beginner Exercise 129 / Solution

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Solution

[Diagram]
Solution  

B1, B3 atari the two stones. If White connects at a, White dies in gote.

[Diagram]
Solution  

After B3, a and b are miai, so the white group has only one eye.

[Diagram]
Variation - wrong  

White might try to play hane at W2 in order to play W4 in sente. If black gives the usual answer, a and b are miai for life. If W2 is answered with B6 white would have a chance to escape at W5.The correct answer is to keep following on the second line with B5 or throw-in at B4 to reduce eyespace.

[Diagram]
Variation - correct  

After the throw-in at B1, a and b are miai for black to kill.


Failure

[Diagram]
Failure  

One of the simplest refutation to the hane of B1 is W2. After W3 and B4, it is not possible for Black to play at a.

[Diagram]
Failure  

The squeeze of B1 allows White to play atari in the direction of W2.

[Diagram]
Caveat  

Atari at W2 is a mistake. After B3, White cannot play at a, so White is dead.

[Diagram]
Failure  

White lives easily.

[Diagram]
Failure  


Beginner Exercise 129 / Solution last edited by Unkx80 on October 6, 2009 - 19:03
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