Re: [computer-go] citation

[Darren Cook <darren@xxxxxxxxx>]

> > $$  -----------------------------------------
> > $$  | . . . . . X X X . . . . . . . . . . . |
> > $$  | . . . . . O O O . . . . . . . . . . . |
> > $$  | . . . . . . . . . . . . . . . . . . . |
> Now see my point on this issue? 
Yes.

So the definition needs to change from "group with 2 liberties" to
"group with 2 liberties where both liberties are adjacent to a single stone 
of the group and the two liberties in a right-angle relationship with that 
stone".

I'm not sure but I think the chain will stop being a ladder by that 
definition when it meets stones that change its direction, etc. So perhaps 
it is now too-strict?

Darren

>  Given a position on an arbitrarily-sized Go board,
>  and a white group with 2 liberties, can Black keep
>  putting white
>  in atari---that is, reduce white to 1
>  liberty---until capture?
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