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Eye Point
Path: EyesCollection · Prev: FalseEyeLife · Next: HalfEye
Keywords: Life & Death, Rules, Theory, Go term
An eye point is a liberty of a group which creates or destroys an eye. In the different context of modern Japanese rules and if final-position, intersection, black-string, white-string, alive, dead, etc. are already defined, eye point can be defined as follows: "In the final-position, a black-eye-string is an intersection that is empty and, recursively, any adjacent intersection that is empty or occupied by a stone of a dead white-string. In the final-position, a white-eye-string is an intersection that is empty and, recursively, any adjacent intersection that is empty or occupied by a stone of a dead black-string. In the final-position, an intersection of a black-eye-string is a black-eye-point if the black-eye-string is adjacent and only adjacent to intersections with stones of alive black-strings. In the final-position, an intersection of a white-eye-string is a white-eye-point if the white-eye-string is adjacent and only adjacent to intersections with stones of alive white-strings. An eye-point is either a black-eye-point or a white-eye-point." -- RobertJasiek 2003-11-03. The following treats eye point in its first meaning. An eye point is always a single point eye and sometimes is a false eye. It is never a large eye. Eye points are an important concept in life and death problems.
This is not an eye point, this is enlarging your eye space
This is not an eyepoint either. It also is expanding your eye space. Bildstein: By "creates or destroyes an eye", do you mean "creates an eye if played by Black to use your examples, but destroys the eye if played by White", or do you mean that it can be an eye point by having only one of these conditions? I can't understand how your fourth example is not an eye point, although I understand that it enlarges Black's eye space. Also, why is a in your last example not an eye point. It seems to comply with your definition. Do eye points have something to do with vital points? I guess the vital point in the middle of an unsettled three would be an eye point, by your definition. See also the Eyes Collection. Path: EyesCollection · Prev: FalseEyeLife · Next: HalfEye This is a copy of the living page "Eye Point" at Sensei's Library. ![]() |