Beginner Exercise 94 / Solution

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[Diagram]

Play Ko.

Confused: The best move I found was to start a big Ko fight. Althought White playing at a would deny Black two eyes inside, White's outer group wouldn't survive long enough to fill the Black eye.


Things that don't work

... or are very unlikely that they would.

Dansc: As we know, a six-point big eye produces 12 liberties. Counting the four white stones inside the eye, black still has 8 liberties - white, on the other hand, has only three. If white plays at a, black can play elsewhere five times and still win the semeai.

[Diagram]

B2 elsewhere

[Diagram]

B2, B4, B6 elsewhere

[Diagram]

B2 elsewhere

[Diagram]

Death.

And white dies.



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