GokyoSeimyoVolume3Problem121/Solution

continued ( at )  

End in a snapback. So Black can't connect at ; White connects to the corner.

Variation at  

(instead of in the first diagram) leads to the following ko, under the assumption White can't escape to the left.

Continued  

... which is too risky and not advisable in practice. White takes first and has some local ko threats.(This is not an approach ko; Black connect at a wins.)

Wrong order  

The original solution shows a different order of play, here first. But it fails to .

continued  

After , Black wins the capturing race.