Author: James T. Walker
Date: 09:17:53 11/20/05
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On November 20, 2005 at 10:27:27, chandler yergin wrote: >The Topic is about the Sac. The Negative PV Eval shows it was not good. >Thank you for proving a point. On previous threads some Programmers have >stated that it not necessary to take a position to Mate; that a High PV >Eval is sufficient to prove there is a Win. Also stated was that they had >never seen an Eval over + or - (5.xx) where there was not a win. >This game is just one more example where this is not true. About the eval, I have seen a program with a +10 score end with a draw. I think it was Chess Tiger 14 but since I have almost 3000 games with CT14 in my database I'm not going to try to find it. People who say "I've never seen ....." should realize there are many more things they have never seen than they have actually seen. It means nothing just because they have never seen it. By the way. Yes the topic is about the sac but in light of it's purpose it was good not bad. It allowed Pablo to save a draw vs a much higher rated player. In my opinion this type of game helps point out weakness of computers that may eventually be fixed. I'm sure it's not a high priority for programmers since they can be more productive in improving their programs in other areas. One day programs will be able to break up this type of defense with a sac of their own which leads to a win. In most instances now they simply can't see far enough ahead to break it. Jim
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