Author: Alexander Kure
Date: 14:20:26 10/28/99
Go up one level in this thread
On October 28, 1999 at 17:06:42, blass uri wrote: >On October 28, 1999 at 16:51:56, Alexander Kure wrote: ><snipped> >>I cannot confirm that commercial programs _do_ learn a lot from crafty's source >>code. What can be learnt from it? > >crafty does some things that some commercial programs start to do only now. > >examples: >1)using nalimov tablebases Using Nalimov tablebases was not totally new. Years before there were Ken Thompson's Endgame tablebases. I do not know if crafty was the first chess programm to access egtbs in his search. >2)learning from previous search by not clearing hash tables after every move > >crafty has some knoledge in simple endgames that some commercial programs do not >have > >It understand cases when KBPP vs K is a draw. this is a 5 piece ending - no need to know. > >Crafty also has no problem of taking a7 when the bishop is trapped there when >some commercial programs have this problem. Oops. Nimzo likes to take these kind of pawns with his bishop :-( But you don't need crafty's source code to fix this. > >Uri Greetings Alex
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.