Eye in the belly

  Difficulty: Advanced   Keywords: Life & Death, Go term
[Diagram]

Eye in the belly

A potential eye, such as this one at the marked point, may have a big effect on the almost filling of groups. It doesn't need to be a real eye to make a difference.

[Diagram]

Real eye in the belly

This is a simple capturing race, which Black has already won.

[Diagram]

No seki

In this shape there is no way for White to make seki.

[Diagram]

Status?

In this case, with one more space inside, what happens? Black can kill by making the eye.

[Diagram]

White lives in seki

White is alive after 1: Black now cannot successfully almost fill.


Note on polite English: 'belly' might be considered a little colloquial, or childish, compared with 'stomach', in spoken English. There is a further example (in the centre) at the end of killable eye shapes called 'eye in the stomach'.

Charles Matthews

jsha: However, 'belly' has some appropriate connotations. The belly is traditionally one of the most vulnerable parts of a dragon, and as such is a good place to strike. Also, something is said to 'go belly up' when it dies.


This is a copy of the living page "Eye in the belly" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.
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