[computer-go] rotate board

[Álvaro Begué]

On Dec 20, 2007 10:19 AM, Jason House <jason.james.house at gmail.com> wrote:

>
>
> On Dec 20, 2007 10:15 AM, Arthur Cater <arthur.cater at ucd.ie> wrote:
>
> > With 8 hashes per position, the chance of two different boards
> > producing a different set of hashes but
> > the same canonical hash is greater than 1/2^64, because there will be
> > a bias in the choice of canonical
> > hashes - toward numerically lower numbers, for instance.
> >
> > I think.
>
>
> More importantly, how does it differ from 8/2^64 = 1/2^61?
>

If you are going to compute all 8 hash keys, you can just add them up at the
end instead of picking the minimum. Wouldn't that be better?
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