On 19x19, Many Faces has books. A full board opening book made from strong player games is a hash of all positions (rotation/refection invariant). It keeps statistics of player strength and win rate, and is only used to bias the search, not to choose a move quickly.
It also has a joseki book with all published lines in english, entered from books (about 60K positions). On 9x9 I have a full board book made from strong cgos games, but I don't ship it with the program. David > -----Original Message----- > From: computer-go-boun...@dvandva.org [mailto:computer-go- > boun...@dvandva.org] On Behalf Of Aja > Sent: Monday, July 11, 2011 5:35 AM > To: computer-go@dvandva.org > Subject: Re: [Computer-go] 19x19 opening books > > Hi Hendrik, > > In the Olympiad last year in Kanazawa, I noticed that Fuego was using a > small 19x19 opening book. It successfully forced Fuego to play at the corner > in the beginning. > > In Erica, I never tried using a book in 19x19 board. As far as I know, Many > Faces is not using a book. pachi is apparently without a book either. > > Aja > > ----- Original Message ----- > From: "Hendrik Baier" <hendrik.ba...@googlemail.com> > To: <computer-go@dvandva.org> > Sent: Monday, July 11, 2011 8:13 PM > Subject: [Computer-go] 19x19 opening books > > > > Good morning, > > > > I'm sorry I have to repeat my question: Can anyone point me to a paper on > > opening books in 19x19 Go? Or have you seen only cosmetic improvements by > > using them, but no strength improvements? > > It would be great if some of you program authors could give a one-line > > answer on that. > > > > best regards, > > Hendrik Baier > > _______________________________________________ > > Computer-go mailing list > > Computer-go@dvandva.org > > http://dvandva.org/cgi-bin/mailman/listinfo/computer-go > > _______________________________________________ > Computer-go mailing list > Computer-go@dvandva.org > http://dvandva.org/cgi-bin/mailman/listinfo/computer-go _______________________________________________ Computer-go mailing list Computer-go@dvandva.org http://dvandva.org/cgi-bin/mailman/listinfo/computer-go
