Gokyo Shumyo, Section 1, Problem 22 / Solution

Solution

[Diagram]
The comb formation  

Black B1 makes a comb formation, which is alive. Now a and b are miai.


Variations

[Diagram]
Main line  

After W2 and B3, it becomes obvious that a and b are miai.

[Diagram]
Variation  

After W2 and B3, it becomes obvious that a and b are miai.


Failures

[Diagram]
Wrong 1  

Black B1 seems a shapeful move, but actually it creates a bulky five. White W2 strikes at the vital point.


[Diagram]
Wrong 2  

Black B1 invites White to create a ko with W2. Later ...

[Diagram]
Later  

... when Black recaptures the ko, W2 is an internal ko threat. Black must play B3 and White can recapture. Therefore, in the previous diagram W4 is better than a.


[Diagram]
Wrong 3  

Black B1 takes another seemingly vital point, but this diagram is rather a silly way to die.


Contributors


Problem 23
Back to Kanazawa Tesuji Series


Gokyo Shumyo, Section 1, Problem 22 / Solution last edited by Unkx80 on November 2, 2004 - 10:21
RecentChanges · StartingPoints · About
Edit page ·Search · Related · Page info · Latest diff
[Welcome to Sensei's Library!]
RecentChanges
StartingPoints
About
RandomPage
Search position
Page history
Latest page diff
Partner sites:
Go Teaching Ladder
Goproblems.com
Login / Prefs
Tools
Sensei's Library