Author: Georg v. Zimmermann
Date: 04:06:21 09/17/99
Go up one level in this thread
> >Something to experiment with is folding the score in toward zero based upon the >50-move counter. If pieces are coming off and pawns are moving, it is likely >that progress is being made. Once they stop coming off and pawns stop moving, >it's very possible that you're headed for a 50-move draw. I'm not talking about >5 or 10 moves, that seems to happen in middlegames, but maybe around 15-20 it >should start kicking in slowly. I like that idea better than my original idea (reducing overall score towards 0 if all part-evaluation stay the same). I would like to see it (as experiment) implemented in Crafty to see the effect. I don't think thats hard to do. > >It's not necessarily true that the draw is going to happen if you just let the >program play. When you get near 50-moves, the program will hit a brick wall -- >it will see 50-move draw scores. At this point it might not have enough horizon >to try something new, it might allow a draw, or try to make some progress out of >panic. It would be nice to have the program program panic more gradually, so >perhaps it can do something before it's had to put its pieces on dumb squares in >order to avoid repetitions. Exactly, there are 2 drawbacks to how it works now: 1.) We humans have to wait 42 moves :-( 2.) Sometimes, in many endgames, the remaining 8 moves arn't enough to try something new.
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