On 22/02/2012 10:48 PM, Jim Curtis wrote: > I have downloaded various databases but unsure as how to name them. I > think the download names are descriptive but are not recognized by > gnubg. Looked in documentation but couldn't find naming info there. > Thank you in advance. >
What databases did you download? (A URL would help). GNUBG comes with smaller Bearoff databases on most distros, and are automatically generated if you build from source. If I knew where you got your files (and what they were) I could probably help further. This info is available in the manual: GNU Backgammon reads several different files at startup. It will first try to read a file called gnubg.wd. This is a file which contains all the neural net weights and is necessary for the program to evaluate positions. If this file is not found, or found corrupted or with an incompatible version, GNU Backgammon will search for a weights file called gnubg.weights. This file also contains the neural net weights, but is stored in ASCII format. If none of these files are found, GNU Backgammon will start, but it will give you a warning about these missing files, and it will play very poorly. GNU Backgammon will also read the bearoff databases at startup. There are usually two bearoff databases. The first is called gnubg_os0.bd, and has stored data about the bearoff probabilities of all position where both players have 15 or fewer chequers left on their six home board points. If this file is not found, GNU Backgammon will create a heuristic bearoff database for these positions. This database is a also called the ‘One Sided Database’, since it evaluates each player separately. The other bearoff database is called gnubg_ts0.bd. This bearoff database contains win probabilities for all bearoff positions with six or less chequers. It also contains cubeful equities (Money Game) for all the positions. If this file is not found at startup, GNU Backgammon will evaluate late bearoff positions with the one sided bearoff database. -- Michael Petch CApp::Sysware Consulting Ltd. OpenPGP FingerPrint=D81C 6A0D 987E 7DA5 3219 6715 466A 2ACE 5CAE 3304 _______________________________________________ Bug-gnubg mailing list [email protected] https://lists.gnu.org/mailman/listinfo/bug-gnubg
