Gokyo Shumyo, Section 1, Problem 43 / Solution

[Diagram]
Main line  

The black group makes a comb formation with unfinished 'legs'. Here B1 is the vital point.

[Diagram]
Variation 1  
[Diagram]
Variation 2  

[Diagram]
Failure 1  

Knowing the comb formation tempts one to extend the leg with B1. White plays W2 to create a bulky five and plays W4 at the vital point.

[Diagram]
Failure 1 variation  

[Diagram]
Failure 2  

So, since the white+circle stone seemed to be the one spoiling the comb party, Black tries B1 here. Up to W6 he gets a ko.


[Diagram]
Failure 3?  

Black extending to enlarge his space seems to work. Anyone counter this diagram ?

[Diagram]
Failure 3?  

How about W2 to get an advantageous ko?


[Diagram]
Failure 4  

Black is short of liberties and is dead


Go to Problem 44
Back to series


Gokyo Shumyo, Section 1, Problem 43 / Solution last edited by 89.242.79.18 on May 6, 2016 - 10:35
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