Gokyo Shumyo, Section 1, Problem 47 / Solution

[Diagram]
Under the stones  

The solution includes a ishi no shita tesuji. After W1, a is a vital point.

[Diagram]
Under the stones  

Black sacrifices two stones, hoping to destroy the eye by giving atari with B6 at B4.

[Diagram]
Under the stones  

White makes the surprising move at W2, allowing Black to capture four stones!

[Diagram]
Under the stones  

In the space created by the four captured stones, White can recapture two stones.


Pitfalls

[Diagram]
Pitfall 1  

Obviously, White mustn't answer B2 at W3 here.

[Diagram]
Pitfall 2  

If White hastily answers the atari by (temporarily) saving her stones with W2, B3 kills.

[Diagram]
No Under the stones  

If White fails to make the four-stone sacrifice, and connects at W5 here, then B6 takes three stones, and there is not enough room to play "underneath".


[Diagram]
Failure  

W1 makes one eye in the corner. B2 makes miai of a and b to take away the other eye.

[Diagram]
Inferior for Black  

B2 here would allow White to live in ko.


Go to Problem 48
Back to the series


Gokyo Shumyo, Section 1, Problem 47 / Solution last edited by Unkx80 on September 13, 2005 - 16:22
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