Beginner Exercise 122 / Solution

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[Diagram]

Solution

black+circle is a blunder, as the wedge at W1 kills the Black stones. Due to shortage of liberties, Black a would be self-atari.

[Diagram]

Continuation

If Black resists with B2, then W3 forces the win.

[Diagram]

Snapback

If B2, then W3 catches Black in a snapback.

[Diagram]

Descent

Black's descent with B2 still cannot save him.


[Diagram]

How black should have played

B1 at a was a blunder. Black should have played B1 here instead. Now white+circle is captured.

[Diagram]

If white tries to escape...

If W2 here, then all the white stones are captured. (This is an example of where One-Two-Three doesn't work!) For how white can save part of the group, see the variations at Kyu Exercise 75.



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