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MoonlightLife
MoonshineKo

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Ko

 

MoonshineLife
   

What is the status of the white group in the upper left corner?

[Diagram]
Diag.: Moonshine Life

  1. Dead. - one eye dies.
  2. Seki. - white cannot make two eyes but black cannot kill, because white has infinitely many unremovable threats
  3. Alive - white stones cannot be captured, so the "eye" should be worth 1 point.
  4. Jigo - if black insists on playing the ko, a triple ko occurs


--Bass


This is the earliest known rules dispute, involving an ambiguous pronouncement by a Japanese monk called Nyobutsu. The status of the top left White group has been regarded differently over the centuries, and modern rulesets do not agree.

I took the liberty of moving this from the MoonlightLife page. Moonshine Life is the usual name for this.

BillSpight


The full story by John Fairbairn: [ext] Nyobutsu's Judgement



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