Beginner Exercise 204 / Solution

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Solution

[Diagram]

Solution: ko

In this problem, Black cannot live unconditionally. B1 leads to ko for life, with White taking first.


Failure

[Diagram]

Failure 1

B1 fails to W2, killing unconditionally.

[Diagram]

Failure 2

Although cutting at B1 seems like a reasonable move, W2! is a clever move that kills. (W2 at a allows a throw-in ko at W2.)



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