Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Has anyone ever solved this position

Author: Alex Szabo

Date: 20:52:19 04/05/01

Go up one level in this thread


On April 04, 2001 at 23:15:05, Robert Hyatt wrote:

>On April 04, 2001 at 20:26:17, Stephane Daniel wrote:
>
>>
>>Position 230 of the well known "Win At Chess" test suite.
>>
>>2b5/1r6/2kBp1p1/p2pP1P1/2pP4/1pP3K1/1R3P2/8 b - - 0 1
>>
>>Right move is supposed to be Rb4
>>
>>
>>My program just can't solve this one. Is there an error in this particular test?
>>What do your programs find for this position? Mine keeps telling me to play Rh7
>>with a score of -1.71
>
>
>It is the right move.  But you have to evaluate passed pawns very highly to
>get this one, as you really will not search it to a queen in any finite amount
>of time, due to the checks.  I have seen older versions of crafty solve it.
>Someone reported that if you do "eval ppscale 200" then it will get it pretty
>quickly...

Rb4 does NOT win for black; it's a draw.




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.