TsumegoFromGames104/attempts

 

Dieter: Up to , Black lives. sure is a surprising move. It can be found when desperately looking for a way to make sente.

Tapir: Can't Black choose to start with (then , , and now ) to avoid ko? What is the status of the center white group after Black lives on the edge?

hhw: Seems to me that if Black starts with , , and . White will play the next move where is, and Black is caught.

Herman: No, in that case black will cut at and capture 5 white stones. But if black plays --- and then , white will answer at .

Var at  

3 against 2

Var at 2  

This is the strongest resistance by White.

Continuation  

The result is a two stage ko for Black, while a direct ko for White.

Failure  

Black should accept the ko. If here, he is short of liberties.

Var @ 2  

This is another variation where White cannot afford an attempt to kill Black, due to its sudden shortage of liberties, caused by the amazing 1-2 point throw-in.