Re: [computer-go] Pattern matching - example play

[David Weiss <dweiss51@xxxxxxxxx>]

In going from 2 dan to 3 dan, one of the
main faults which I corrected in my play was
not answering the stronger player and taking
gote so much.  That is, my move was the correct
one in the local area, but I should have taken
sente and played somewhere else.

I am wondering whether a pattern matching approach
such as the one Frank has been discussing can
deal with this issue, or whether it might not
have the same problem.

--- Vlad Dumitrescu <vlad_dumitrescu@xxxxxxxxxxxxxxxxx>
wrote:

> ----- Original Message ----- 
> From: "Mark Boon" <tesujisoftware@xxxxxxxxxxxxxxxxx>
> > > Isn't half a million games "an "accumulation" of
> all previous Go knowledge
> > > condensed into those games?
> > Well, maybe this is the focal point of the
> discussion. Does half a million
> > games contain all Go knwoledge? I think it seems
> obvious that it does not.
> > And also not 2 million, or any other 'practical'
> number of games. And I even
> > question (as explained in my previous post) that
> it contains all
> > 'fundamental' knowledge. Defining 'fundamental' is
> maybe not so obvious, but
> > the pattern in my previous post is an example of
> what I mean.
> 
> Mark, are you saying that a game (or a million
> games) contains not only the
> knowledge that is seen in what was played, but also
> the one that is revealed in
> what (and why) was *not* played? And the latter is
> not easily (if at all)
> extractable from only pattern matching.
> 
> Having one million games lets more of that invisible
> knowledge sip through
> (because there are no two identical games, so there
> are bound to be played many
> variations of the same position). Is it enough of it
> sipping through? We'll see
> that as Frank continues his hard work.
> 
> 
> <sidenote>
> I think that the reticence to accept that only the
> moves played are enough (for
> a pro level player) is because of games (I remember
> seeing one of Shusaku's)
> where apparently everything is quiet and there's no
> fighting and one side wins
> with 3.5 points. But the analysis shows some very
> fierce fighting that would
> have taken place if any one of the players would
> have played a little more
> aggresively.
> 
> Is the result of that fight stored in the peaceful
> variant? I think not, as the
> result might or might not give White the victory.
> One has to analyze to see
> that. What we can say is that White didn't have the
> confidence to read 80 moves
> ahead and base his play upon that reading, so he
> choose peace.
> 
> This is however just a feeling we have, and I'd
> venture to guess that this
> feeling is stronger for stronger players, because
> they are more "indoctrinated"
> with the game. It may be right, or it might be
> wrong. We will be able to tell
> only after trying.
> 
> </sidenote>
> 
> 
> best regards,
> Vlad
> 
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>
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