Author: Michael Yee
Date: 06:44:00 01/05/04
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On January 05, 2004 at 08:51:39, Ted Summers wrote: >If a program, any program (like X3D Fritz) plays some positions like a 2700+ >player and other positions like a 1600 or 1700 player what would you say it's >true rating should be? I am asking because of the 3rd game of the Kasparov vs. >X3D Fritz match. In human games I don't think that their is such a huge gap in >how a human would play a open position verus how they would play a closed >position in terms of chess strength for example. However in computer chess this >seems to be very normal. So I don't see how we can say that a program is 2700+ >when it plays some positions and as such weak player in other positions. Granted >in tactics they are a GrandMaster, however in strategy they are maybe a grade A >(1900) player. These are my thoughts, interested in hearing yours. > >Thanks >Ted Summers Perhaps you need to factor in the ability of the program to get the types of positions it likes. For example, suppose Program X has "strength" 2800 in type A positions and 2000 in type B positions. And suppose that X can force type A positions about 75% of the time. Then the "expected" (overall) strength would be about 2800 * 0.75 + 2000 * 0.25 = 2600. Michael
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