RTG Problem 49a / Solution

Sub-page of RTGProblem49a
[Diagram]
Ko  

Black can get a ko for life. It is a direct ko for both players.


Mistake

[Diagram]
If white captures...  
[Diagram]
Black takes 4 stones  

Black takes 4 stones with B9 at a, and has his second eye in the corner.

[Diagram]
One liberty  

Thanks to the marked liberty, Black can now block at B2 and atari at B4, unlike in RTG Problem 49/Solution.


RTG Problem 49a / Solution last edited by Dieter on December 12, 2012 - 12:26
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