Author: chandler yergin
Date: 10:35:45 11/19/05
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We know the ‘Opening Book ‘ is simply an opening tree, a database consisting of positions,not games. They have drawbacks. For example, the moves, results,& ELO performance only refer to the current position. A move might reflect an average score of 80%, but these come from older games. The line may have been abandoned when a refutation was found. You can use the Menu in any position and have the Program ‘Create Best Line'. An Interesting way is to go to Toolbar ‘Open Book', add a Kibitzer engine and watch the PV as you go through the Opening Book. You will see there are many positions that are not even in the top 10 Evals of the kibitzer. This is the fallacy of Opening Books. They are based on games played. No game is ever played perfectly. So people that try and tweak the static positional values are simply trying to refute bad moves. Does this make sense? Not IMO. That's why I say again.. Use the Default values of your engine. It knows what it's doing.
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