Beginner Exercise 127 / Solution

Sub-page of BeginnerExercise127

Kaiou I think that the 2-1 point is Black's vital point.

[Diagram]

Black first

[Diagram]

Black first

[Diagram]

White first

W1 kills Black: it's a dead shape.


unkx80: Solution by kaiou is correct. Addendum below:

[Diagram]

Black first

W2 has to be answered by B3. Black a lives too but is smaller.

[Diagram]

Mistake

B3 is a mistake, giving W4 a chance to turn the already alive corner into a ko. If B5 at a, white will play at W5, and black will be totally dead.


demetria: With the above solutions, black looks to have only false eyes. Is there any way to make this a true living shape?

[Diagram]

White is insidious

If white takes the next vital point, A, it leaves black with one eye (or 2 small eyes at best, which is better than nothing). If black takes the vital point the eyes are still false. White can follow up with B as well.

[Diagram]

White is insidious

Here, white can force black to ruin his own eye. White can at this point threaten a capture if she can manage to seal black off the rest of the way and win a ko at A.

The point here is : How does black prevent all this from happening?



unkx80: My answer to your queries is in the two diagrams below.

[Diagram]

Black lives.

[Diagram]

Black lives.

Tas: A bit of explanation: The eye at a is not false since W4 is captured. If white b, black B4 to keep the eye real.


Nico3ck?: How about Black at B1 ? I can't see white killing it.

[Diagram]

Black first

Herman After W4, black's eye is false

[Diagram]

Throw-in to kill

Anonymous: Black captures and white plays a throw-in with W6 to make it a false eye.


[Diagram]

Black failure

Chaz: B1 is too slow. After white takes the vital point, a and b are miai to kill.



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