Big Eye Wins Semeai

   
[Diagram]

Both groups have an eye and all liberties are internal. This looks a lot like a seki, but...

[Diagram]

2, 4, 6 = Black plays elsewhere

[Diagram]

No matter who starts first, white can win the semeai because of his big eye. The group with the big eye is at a big advantage in a semeai. The group with a small eye needs an abundance of external liberties if he is to have a chance of winning. This is very much like eye vs no eye semeai.


See also:


This is a copy of the living page "Big Eye Wins Semeai" at Sensei's Library.
(OC) 2005 the Authors, published under the OpenContent License V1.0.
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