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SnapbackProblem1

 

Snapback 1 Solution
    Keywords: Problem

[Diagram]
Diag.: White is safe

Scartol: When Black takes the marked white stone, White 1 allows White to take back the three black ones immediately. Now Black has to defend at a.

SAS: This is correct, but obviously Black would play 2 at a, and leave the capture as a possible ko threat.


[Diagram]
Diag.: White is safe

unkx80: More likely we would be looking into the aji when stones are not removed from the board, such as the possibility of Black playing at a followed by b, making an atari. Usually we do not play ko threats like those in the previous diagram.

SAS: Yes, this is true. I was ignoring the outside because I thought we were talking about the endgame situation. As it is now, Black shouldn't play 2 anyway, since it's too small.



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