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Real Half Point Ko
Path: SecondCourseOnKo · Prev: HalfPointKo · Next: HonKo
Keywords: Ko
This ko, commonly known as a half point ko, has a miai value of only 1/3.
However, this ko really does have a miai value of 1/2. Unless Black is komaster, that is.
Result: 0. A (local tally) difference of two moves makes a difference of one point, so the miai value of the ko is 1/2.
Result: -1.
Result: 0.
Again, a difference of two plays makes a difference of one point. Miai value of ko = 1/2. When Black is komaster the ko has a miai value of 7/12.
Result: +2/3. (Black has taken one stone for one point, minus 1/3 point for the black stone in ko.)
After
Two plays make a difference of 1/2 + 2/3 = 7/6 points. The miai value of the ko is 7/12. -- Bill Spight Path: SecondCourseOnKo · Prev: HalfPointKo · Next: HonKo This is a copy of the living page "Real Half Point Ko" at Sensei's Library. ![]() |