computer-go: an outline of a go board representation

[mike polyakov <mvp9@xxxxxxxxxxx>]

Hi,
A few months back I came across a page on some go/computer go website
that explained a new and cool way to represent go boards that dealt well
with rotational and reflection symmetry (the main explanation was a couple
pages long). However, since then my harddrive crashed and I lost the
link. Now, i'm seriously engaging in an effort to write a Go program and I
was trying to find that page - but so far unsuccessful. If anyone knows
the page i'm looking for, I would appreciate the pointer very much.
thanks,
Mike