[computer-go] Re: pseudoliberties

[Arthur W Cater]

> It's really a way to incrementally update liberties in a
> fast way - each stone keeps it's own count of liberties
> and it is summed - but of course it doesn't represent
> the true number of liberties since a point can get 
> counted 2 or more times.    However, if the count goes
> to zero, the count is correct.

A count of 1 is also correct presumably, perhaps usefully.

Arthur