Re: [gnugo-devel] Revise TODO?

[Gunnar Farnebäck]

Ben Lambrechts wrote:
> > > I don't want to hack in the code, but if I can create a new fuseki-
> > database,
> > > I am willing to help.
> > I don't think a new full-board database would be of much value at this
> > time. As described in my other mail, smaller scale patterns have much
> > more potential.
> >
> > However, I believe patterns/extract_fuseki.c, the code used to generate
> > the fullboard patterns, has a mode to also generate halfboard patterns.
> > It could be interesting to generate a collection of such patterns from a
> > set of strong games, which then could be used in an Elo pattern rating
> > approach.
>
> Do you think it would be usefull to generate a new fuseki19.dbz from a much
> larger game-database? I tried the first moves by hand:
>
> F-H0-1 3977 pd
> F-H0-2 1136 pc
> F-H0-3 201 od
> F-H0-4 158 jj
> F-H0-5 137 qe
> F-H0-6 101 qc
> F-H0-7 46 oe
>
> from the original file becomes
>
> F-H0-1 31494 pd
> F-H0-2 15635 qd
> F-H0-3 782 oc
> F-H0-4 633 nd
> F-H0-5 609 jj
> F-H0-6 482 od
> F-H0-7 394 qc
> F-H0-8 291 oe
>
> with the database I have atm.
> The fuseki19.dbz would become much larger, but it has much more strong
> fuseki within it.

No, I don't think it would be very useful to generate a bigger 
fuseki19.dbz, at least not useful enough to include it in the 
distribution. But there are other possibilities. We could e.g. offer a 
bigger fuseki database as a separate download.

It is also today relatively straightforward to test the effect of a 
bigger fuseki database. Just put up two GNU Go which only differ in the 
fuseki database on the 19x19 cgos server (see 
http://cgos.boardspace.net/). If the effect is significant enough, 
adding it to the distribution would be considered.

/Gunnar