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StartingPoints
ReferenceSection
About


Aliases (info)
Eyes

Paths
LifeAndDeath
Shape

Referenced by
GoTerms
TwoEyes
ThrowIn
FalseEye
InstantEyeTester
BambooJointIsBadS...
EyePotential
TwoEyesCanDie
AtariGoAsATeachin...
KanazawaSolutionSix

 

Eye
   

An eye is a liberty of a group which the opponent cannot remove.

A false eye looks like an eye, but is actually not an eye. Sometimes, a large eye (nakade) is still considered only one eye.

Eyes are a central concept in Go, since two eyes guarantee the life of a group.

There is a lot of discussion on the definition of what is an eye and what is not. Here is a general eye definition meant for humans. There are also discussions of technical algorithmic definitions meant mainly for mathematicians and computers at eye definition discussion, where absolute precision is needed.

[Diagram]
Diag.: An eye in the centre

[Diagram]
Diag.: An eye at the side

[Diagram]
Diag.: An eye in the corner


See also:



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