Beginner Exercise 203 / Solution

Sub-page of BeginnerExercise203

byorgey 15k:

I'll give it a try. (= This is indeed a cool problem.

[Diagram]

Black to live.

B1 is the proper solution.

[Diagram]

Continuation 1.

If white plays at any of the three points marked a, black captures at b, making the second eye, and the remaining two a points are miai to connect the eyes.

[Diagram]

Continuation 2.

If white plays W2 instead, black must capture with B3. Black then captures the throw-in at W2 and a and b are miai.



Some failed attempts:

[Diagram]

Failure.

After W4 there is no way for black to make a second eye. B1 at W2 fails in similar fashion.

[Diagram]

Failure.

After B1, W2 takes away the second eye. Playing B3 at a does not help; black can capture W2 but still does not get a second eye. Playing B3 at b does not help either since white has enough time to escape.

[Diagram]

Failure.

B1 does not work either: after the exchange of W2 and B3, the throw-in at W4 dashes black's hopes for a second eye.



This is a copy of the living page "Beginner Exercise 203 / Solution" at Sensei's Library.
(OC) 2005 the Authors, published under the OpenContent License V1.0.
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