Pseudo liberties of a group is a sum of liberties of each stone, example:
OOOOO OXXXO OX.XO OXXXO OOOOO "X" group have 4 pseudo liberties. If You merge two groups just add pseudo liberties. If PL = 0 then group should be removed. This is simple and sufficient :) Lukasz On 12/11/06, Don Dailey <[EMAIL PROTECTED]> wrote:
On Mon, 2006-12-11 at 18:22 +0100, Łukasz Lew wrote: > - pseudo liberties at top of union-set tree Refresh my memory on this. I remember talking about this a long time ago. A psuedo liberty is an upper bound on how many liberties there are for a given string, correct? Sometimes a liberty gets counted twice or more? But if it goes to zero or one it's correct for any given string? Is the idea that it's lightning fast to update incrementally? - Don
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