Author: Koundinya Veluri
Date: 12:51:00 12/02/01
Go up one level in this thread
On December 02, 2001 at 12:53:18, David Rasmussen wrote: >On December 02, 2001 at 12:45:35, Koundinya Veluri wrote: > >>On December 02, 2001 at 12:16:57, David Rasmussen wrote: >> >> >>Hi David, >> >>A threshold of 5 games might be too big for the 2600u collection because it has >>already been cleaned several times. 1 worked well for me, even 2 removed too >>many variations from the book, but all depends on how the program chooses which >>positions to store of course. But if the program has a good algorithm for >>picking book moves, then a threshold of 1 should do. I created one from 2600 for >>my program (although it doesn't have win percentage yet) with a threshold of 1 >>game to 60 plies. It has about 1.2 M positions and rarely comes out of book with >>an obviously lost position. Also, if you use a threshold of 1 game, you might >>also want to reduce the ply count to 30 or 40. >> >>You can also try Enormous.pgn from the Crafty FTP site if you really want a >>near-1GB pgn file, but there are many sizes of pgn collections there. For the >>enormous, a threshold of anywhere from 2 games to 5 games works well for me. >> >>Crafty FTP: ftp://ftp.cis.uab.edu/pub/hyatt/ >>Look in the common folder. >> > >Thanks for the info! My problem with a low threshold was that below 6, 2600u >contains 1. a3 . WHY?? > >I will try with enourmous.pgn and 2600u with a lower threshold, and just live >with 1. a3, then... > >/David Hi David, The 1. a3 games are probably there so that programs can reply to it from the opening book. I don't store any moves that are played close to 0% of the time so my program will never play 1. a3 but it will be able to reply to it from the book. Regards, Koundinya
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.