Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Is there a program that won't play 1.Nxb6+?

Author: Robert Hyatt

Date: 20:48:56 10/11/00

Go up one level in this thread


On October 11, 2000 at 02:21:40, Jim Monaghan wrote:

>[D] 2k5/2p5/1q1p4/pPpPp1pp/N1P1Pp2/P4PbP/KQ4P1/8 w - - 0 1
>
>A. Petrosian - Hazai, 1970  As Dr. Nunn states in his annotations Black's
>position is quite bad and he tried Qa7-b6 last move and White couldn't resist
>snapping off the queen ... and drawing.  The correct scheme is to reject the
>"gift" and play Qd2, Kb3, Nc3, Ka4, Na2-c1-b3 and Qxa5 with Black just watching.
> I gave this to Crafty 17.13 ...
>
>20     4:33   5.32   1. Nxb6+ cxb6 2. h4 gxh4 3. Qc1 h3
>                                    4. gxh3 h4 5. Kb3 Kd7 6. Kc3 Bf2 7.
>                                    Kd3 Ke7 8. Qd2 Bg3 9. Qc2 <HT>
>
>Is there a program that "understands" the idea of a blockade, or is this still a
>tough area for programmers ... where ply depth doesn't really help but something
>in it's evaluation function?  From a human standpoint the concept is not that
>complex although A. Petrosian stumbled ...
>
>Cheers,
>
>Jim


I really don't deal with this case, because there is practically no chance that
anyone could force crafty into a position like this, as it tries _so_ hard to
prevent leverless positions.



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.