Kyu Exercise 73 / Solution

Sub-page of KyuExercise73

Solution

[Diagram]

Solution

The solution is B1. This makes a and b miai.

[Diagram]

Solution

If W2 descends, then B3 can make the second eye on the left side. The eye on the right side is unaffected.

Similarly, if W2 at a, then the same B3 makes two eyes and lives.



Failure

[Diagram]

Failure

B1 here is a mistake, because after W2, Black is unable to play at W4 to make a second eye due to shortage of liberties. The result is a ko for life.

Note that B3 is the only correct move after W2, any other move dies.

[Diagram]

Failure

If B1 here, then W2 crawls in. After W4, Black dies because a move at a is self-atari.


This is a copy of the living page "Kyu Exercise 73 / Solution" at Sensei's Library.
(OC) 2016 the Authors, published under the OpenContent License V1.0.
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