Computer Chess Club Archives

Search

Messages

Subject: Re: PVS searcher in-check pass-through no-hash (correction)

Author: Stuart Cracraft

Date: 20:24:32 07/31/04

Go up one level in this thread

On July 31, 2004 at 23:23:26, Stuart Cracraft wrote:

>So this position appeared in my program's search:
>
>-- ** -- ** -- ** -- **
>BP WR ** -- ** -- BK --
>-- ** -- ** -- ** -- **
>** -- ** -- ** -- WK --
>-- ** -- ** -- ** BP **
>** -- ** -- ** -- WP --
>-- ** -- ** -- ** -- **
>** -- ** -- ** -- ** --
>Position A
>
>for Reinfeld's Win-at-Chess #6
>
>-- ** -- ** -- ** -- BK
>BP -- ** -- ** -- ** --
>-- WR -- ** -- ** -- WK
>** -- ** -- ** -- BR --
>-- ** -- ** -- ** BP **
>** -- ** -- ** -- WP --
>-- ** -- ** -- ** -- **
>** -- ** -- ** -- ** --
>
>The program sees Kf8/g8/h8 in A and rejects all of them due to:
>
>rejected g7f8 in (alpha=-21,beta=-20,value=-21,best=-21):
>(value is not > best)
>
>Same for
>rejected g7g8 in (alpha=-21,beta=-20,value=-21,best=-21)
>
>Same for
>rejected g7h8 in (alpha=-21,beta=-20,value=-21,best=-21):
>
CORRECTION:
>As a result, ***NO*** "best move" is selected for the position and search
>exits without storing a hash move.
>
>Normal? Abnormal?
>
>Stuart

• Re: PVS searcher in-check pass-through no-hash (correction) Volker Böhm 01:21:48 08/01/04
  • Re: PVS searcher in-check pass-through no-hash (correction) Pallav Nawani 11:55:43 08/01/04
  • Re: PVS searcher in-check pass-through no-hash (correction) Laurens Winkelhagen 09:40:54 08/01/04
  • Re: PVS searcher in-check pass-through no-hash (correction) Stuart Cracraft 08:14:31 08/01/04

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.