Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: kk_kup2 update - Should Crafty resign? & KNN v K mates {not=blunder}

Author: Howard Exner

Date: 21:31:29 05/05/98

Go up one level in this thread


On May 05, 1998 at 20:36:08, Danniel Corbit wrote:

>Argh.  Sorry about the empty content on the previous post.  Anyway, are
>there any programs that can construct a draw from the KK KUP2
>Crafty/CM5500 match?  It seems that computers might have a disadvantage
>here, because they will need to throw away a rook for a pawn and the
>advantage won't be realized until much later.
>Or is there a way to prevent the capture of the two white pawns?

I think that white can hold on to its f pawn in this game after
something
like Rxd7 followed by g7-g5 (white replys f4-f5). Crafty I believe would
spot this if it were possible, thus the huge minus score it is
producing.

As a side here is an oddball position that will give your favorite
chess program a nervous breakdown. It combines the two Knight theme and
the drawing c pawn on the 7th theme. It's just a fun position that
would never occur in a real game.

K6n/2P5/1q6/8/8/7k/8/n7 b

White: Ka8 Pc7
Black: Kh3 Qb6 Na1 Nh8

Black to move cannot win this position despite the huge material
advantage. Computers will know in there search that exchanging the
Queen for the pawn will lead to a draw but probably most, if not all,
will give black a big plus score in the eval.

Black's best try is to enter a QNK v QK ending (white will win one of
the
black Knights with a check/fork) but that is a draw also. Unless Ferret
finds a mate in two hundred and something :-)





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.