[spam probable] Re: [computer-go] Gnugo vs commercial programs

[Arend Bayer]

Hi Sylvain,

On 1/10/07, Sylvain Gelly <sylvain.gelly at m4x.org> wrote:

> So between the default level (8) and the level 16, there are 7% winning
> difference at around 50%, which is significant, but do not change "by far"
> the results Hiroshi posted. It is far less than 100 ELO right?
> I did not measure the thinking time of GnuGo level 16, but it seems quite
> long, and some games (at least 1, I don't remember) never finish after a lot
> of hours. Perhaps it is just a bug :).
> So I think using GnuGo level 8 is reliable (and for experiments much
> faster).


If you have (or anyone else has) examples of .sgf-files with such
extra-ordinary long thinking times for a single move, I would be interested
in seeing them.

(Send them to me, to gnugo-devel-at-gnu.org, or attach them at
http://trac.gnugo.org/gnugo/ticket/160.)

My suspicion is that most of them are related to explosion of branching
factors in the local reading of ko fights - due to various reasons these are
not very well controlled in GNU Go.

Arend
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