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BeginnerExercise135

 

Beginner Exercise 135 / Solution
Sub-page of BeginnerExercise135

Failure

[Diagram]
Failure.

The descent at B1 fails, because after W2, if black tries to atari at a, white b will capture all the black stones.



Opportunity

[Diagram]
Opportunity.

Recognizing that the way to deal with this situation is to create a ko.

Note that W2 cannot avoid the ko by playing at W3. However, white takes the ko first at a.



Solution

[Diagram]
Solution.

At the same time, playing that ko differently can make it more or less advantageous for the player.

The solution is to throw-in at B1 first, followed by B3.


[Diagram]
Solution.

This time round, B5 takes the ko first.





This is a copy of the living page "Beginner Exercise 135 / Solution" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.