Author: Robert Hyatt
Date: 15:09:55 01/20/02
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On January 20, 2002 at 12:21:25, Russell Reagan wrote: >I saw in CCT4 that some programs have been agreeing to draws and I'm curious how >most people handle this. I was thinking that if I was offered a draw I would add >a "move" to my legal move list with an evaluation of 0.0 and if that turned out >to be the best move, then I would "make" that "move" (basically accepting the >draw). I began to think about this, and if a strong program like Fritz, Junior, >ChessTiger, etc. used a method like this, then an oponent could play an opening >where the evaluation for that strong program would momentarily go below 0.0 as >white or slightly above 0.0 as black, at which point you could offer a draw and >it would accept, and in an even like CCT4 or at the WC's you could score an easy >draw against a program that you're almost sure would beat your program. >Obviously this method of offering and accepting draws isn't going to work, so >how do most people handle this? > >Russell First, Crafty won't accept draw offers early in the game. Second, it has to search and get a draw score for several searches before it will offer or accept a draw, so that one move with a - eval won't trigger a draw offer... You can make this fairly safe if you choose. IE don't offer until you get five consecutive draw scores from five consecutive real moves in the game... On occasion you will see a draw first, but after a couple of moves you find out it is "more" and you don't want to miss a win there...
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