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Aliases (info)
EyeShape
Eyeshapes

Paths
LifeAndDeath
EyesCollection
KillingShapes
BasicDeathShapes

Referenced by
Eye
Snapback
BentFourInTheCorner
Nakade
WeakGroup
BulkyFive
AlmostFill
Sabaki
CarpenterSSquare
ButterflySeven
Keshi
TwoSpaceExtension
KillableEyeShapes
TwistedFour
HaneTsugi
ThreeInARow
BentThree
SquaredFour
Low
CrossedFive

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Eye space
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Path: LifeAndDeath   · Prev: TwoEyes   · Next: EyesCollection

    Keywords: Life & Death

Eye space is the space available for a group to make eyes.

victim: This does not include groups with cutting points, like the Bulky Seven[1].

Here are some standard eye spaces:

These eyespaces can be alive, dead, unsettled (killable with one move) or killable with more moves. See

In practice, eye space is terrain almost or entirely surrounded by the group. In tsumego problems, it is often important to reduce the eye space from outside, perhaps by a hane, for example.

See also:



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This is a copy of the living page "Eye space" at Sensei's Library.
(OC) 2003 the Authors, published under the OpenContent License V1.0.