Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: 6-man TBs

Author: Anthony Cozzie

Date: 10:19:11 02/02/05

Go up one level in this thread


On February 02, 2005 at 13:14:21, Dieter Buerssner wrote:

>On February 02, 2005 at 13:00:51, Anthony Cozzie wrote:
>
>>On February 02, 2005 at 01:06:30, Robert Hyatt wrote:
>>
>>>>KRPKRP (only the white-side is available from Bob right now?)
>>>
>>>think about it.  If pieces are symmetric you only need one side.  Just turn your
>>>white pieces into black ones, and the black ones into white ones, and look it
>>>up.  :)
>>
>>doh :(
>
>Bob forgot to mention the mirroring needed for positions with pawns. The pawn
>TBs are not identical (they have the identical contents, of course, ordered a
>bit differently).
>
>C:\tb>dir kpkp*
>
>05.08.2003  12:00         1.111.988 kpkp.nbb.emd
>05.08.2003  12:00         1.116.299 kpkp.nbw.emd
>
>I think, current Nalimov code needs both (which may be not intended). From the
>code:
>
>	TB (kpkp, false, false, false, (T22<P, P>::IndCalcW), (T22<P, P>::IndCalcB),
>3863492, 3863492)
>
>The "fsym" is set to false.
>
>Regards,
>Dieter

Well, I'll have to check it when I get home, but if it only probes for one side
to move, it'll get it at most 1 move later ;)

anthony



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.