RE: [Bug-gnubg] Holding games

[Albert Silver]

> -----Original Message-----
> From: Ian Shaw [mailto:address@hidden
> Sent: Friday, June 20, 2003 8:27 AM
> To: address@hidden; Albert Silver
> Cc: GNUBackgammon bug reporting; Neil Kazaross (E-mail)
> Subject: RE: [Bug-gnubg] Holding games
> 
> > -----Original Message-----
> > From: Joseph Heled
> > Sent: 20 June 2003 00:21
> >
> > - In order to make a case we need more than one position. Probably
in
> > the order of hundreds or thousands.
> >
> 
> I don't think we need that many to make the case, but if you can
> generate some positions I'll put them through sagnubg.
> 
> Neil Kazaross has made the observation that "most bots tend to cube
> holding games a bit late". If an expert of Neil's calibre has noted
this

Yes, he observed that the bots, Snowie 4 included, tended to overrated
holding games, especially when there was a 3rd rear back checker. This
was confirmed on several occasions as far as I recall, and he was
consistently right. The bots would get very enthusiastic about the
holder's chances because of the 3rd rear checker, and would rate the
winning chances a good 2% better or more than reality as confirmed by
rollouts.

                                                Albert