Computer Chess Club Archives

Search

Messages

Subject: Re: Which programs can access 6-piece tablebases...

Author: Dieter Buerssner

Date: 00:54:03 02/21/05

Go up one level in this thread

On February 20, 2005 at 18:51:41, Dieter Buerssner wrote:

>On February 20, 2005 at 18:40:34, Guido wrote:
>
>>You are right but if I remember well there is a mate in 127 and a loss in 127 in
>>kppkp and another score to add is illegal position.
>>So for kppkp it is necessary at least 9 bits. You could use the illegal position
>>score meaning loss in 127, as illegal positions are not possible in the game.
>
>Hi Guido! IIRC, 8 bits was just enough for kppkp and all 256 numbers were used.
>kppkp wtm has mate in 127, btm has lost in 127, together with draw and broken
>positions, this exactly fits the 256 states possible in one byte.

Oops, you were right, it seems. I forgot about loss in zero. Sorry for my
useless post. BTW. the max positions here give fast Q-endgame, which is draw due
to 50 moves rule.

Dieter

• Re: Which programs can access 6-piece tablebases... Uri Blass 01:12:55 02/21/05
  • Re: Which programs can access 6-piece tablebases... Tony Werten 03:30:57 02/21/05
    • Re: Which programs can access 6-piece tablebases... Uri Blass 05:05:15 02/21/05
      • Re: Which programs can access 6-piece tablebases... Tony Werten 23:41:00 02/21/05
      • Re: Which programs can access 6-piece tablebases... Robert Hyatt 20:49:44 02/21/05

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.