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Subject: Re: When to resign

Author: Heiko Mikala

Date: 16:52:10 09/01/99

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On September 01, 1999 at 12:41:41, Alan Grotier wrote:

>
>
>At what negative evaluation figure is it reasonable to assume that a chess
>program can nolonger defend the position and will lose the game?
>

My program at the moment (for playing on FICS) is set up to resign, if for 4
moves in a row the score is <= -8.0

The score -8.0 is adjustable via an .ini file though.

This seems to work fine. It doesn't resign too early but also doesn't frustrate
human players by forcing them to play out a game through a boring endgame up to
the mate.

Another thing I'm using is, that the program won't resign, if it sees, that it
will be mated soon, assuming that the human sees the mate too and that humans
feel especially good after having mated a computer.

The only problem is, if the opponent is in time trouble... you will start to
pray, that the opponent loses on time, before your engine resigns ;-)


Greetings,

Heiko.



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