Re: [computer-go] Modern brute force search

[Arend Bayer <arend.bayer@xxxxxx>]

Well I am only amateur-4d, so I don't know much about go, but I disagree with
pretty much every single comment you make on go in this e-mail. I will
only comment on a few of them.

On Thu, 11 Nov 2004, Vincent Diepeveen wrote:

> >I doubt there is a single "best line", there must be many ways to play
> >a perfect game of GO.
> 
> I am sure there is just 1 line.

> Only when it is real simple then there is sometimes more choices.

> idemdito in go. black begins and wins. no question about it.

No, the question is about the right komi. Then, playing with correct integer
komi, a jigo is really really unlikely.

> >In GO, it's  even more unlikely that even a  top player could memorize
> >enough sequences  to play perfectly, and  I even doubt  it would bring
> >the  level of  play up  very much  since it  would probably  be common
> >practice to quickly get away  from the most "obvious" continuations in
> >order to nullify the memorization.
> 
> In Go from human viewpoint many sequences are near to forced. The play
> happens at a very tiny area of the board. That's why reading deep in go is
> not a single problem.
> 
> Even a real poor go player has no problems to calculate a deep forced win
> there.

> So if professional players, who already will go up a lot in strength by
> being able to research what perfect play looks like, if you put them
> against a 361 stone database, then obviously it's real difficult to fool them.

Be aware that a go player just has to make a single one-point mistake to
lose against a perfect player (assuming correct komi). In a match between
top pro's, just the mistakes pointed out by the commentaries usually sum
up to 10 points or more.

Btw, I don't remember which chess player brought up the point about top
pro's certainly overestimating themselves. Have you ever read
commentaries by top pros on their own games? They seem very humble to
me. There are certainly quite some characters among them, but I would
bet a lot that you would nowhere find the arrogance of a Kasparov among
go top pros.

Arend

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