Gokyo Shumyo, Section 1, Problem 43 / Solution

Main line  

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

Variation 1  
Variation 2  

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.

Failure 1 variation  

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.

Failure 3  

B1 extending to enlarge his eyespace is careless. W2 leads to ko.

Failure 4  

B1 here may look to be a vital point....but W2 and W4! kills, with W8 becoming double atari.


Gokyo Shumyo, Section 1, Problem 43 / Solution last edited by hnishy on January 18, 2023 - 05:44
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