Arthur W Cater wrote:
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
Once upon a time, I did analysis of the inaccuracy of pseudo liberties.
Searching quickly, I found:
http://computer-go.org/pipermail/computer-go/2005-October/003839.html
For any interested, I did come up with a variant of pseudo liberties
that was a lot closer to real liberties. My post about "local
liberties" is here:
http://computer-go.org/pipermail/computer-go/2005-October/003852.html
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