Hitachi Number 9 / Solution

Sub-page of HitachiNumber9

Here is the published solution for Hitachi Number 9.

[Diagram]

Black to play.

After Black 1, a and b are miai.

[Diagram]

Variation 1

In this variation, White cannot play at c because of a shortage of liberties. The Black group escapes to the center.

[Diagram]

Variation 2

If W2 blocks the escape, Black can make another eye on the top edge by attacking White's corner group.


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