Kanazawa Problem 47 / Solution
![[Diagram]](../../diagrams/38/3997d885bc53f4860201d24953e0357d.png)
Under the stones
Black sacrifices two stones, hoping to destroy the eye by giving atari with
at
.
![[Diagram]](../../diagrams/43/01e8deddb4e86bff7ef4ea350cb9ed0c.png)
Under the stones
White makes the surprising move at
, allowing Black to capture four stones!
![[Diagram]](../../diagrams/9/67f2ff19457949ea226613f5e9e03bb3.png)
Under the stones
In the space created by the four captured stones, White can recapture two stones.
Pitfalls
![[Diagram]](../../diagrams/32/5bd5f553158ae58fcbbab9898e092cc9.png)
Pitfall 1
Obviously, White mustn't answer
at
here.
![[Diagram]](../../diagrams/46/be141e5cd73daefd9ad1e4d63d471cb3.png)
Pitfall 2
If White hastily answers the atari by (temporarily) saving her stones with
,
kills.
![[Diagram]](../../diagrams/16/046b6fc052558408f7792148fba00a67.png)
No Under the stones
If White fails to make the four-stone sacrifice, and connects at
here, then
takes three stones, and there is not enough room to play "underneath".
![[Diagram]](../../diagrams/44/e008e835f65bc48afb67934101a82969.png)
Failure
makes one eye in the corner.
makes miai of a and b to take away the other eye.
![[Diagram]](../../diagrams/18/347224bb5c704d146dfd10e82ad23533.png)
Inferior for Black
here would allow White to live in ko.
Go to Problem 48
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