Author: Vasik Rajlich
Date: 03:10:29 05/21/04
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On May 20, 2004 at 17:29:11, Russell Reagan wrote: >On May 20, 2004 at 13:12:50, Andrei P wrote: > >>how to get positional and tactical rating (preferably in elo points) for a given >>engine? is there a table with this kind of data for a large number of engines? > >How can you seperate a "positional rating" from a "tactical rating". "Tacitcs" >and "positional advantages" are human concepts. We use tactical and positional >patterns to help us decide which moves and positions are better because we can't >possibly calculate out all of the variations like the computer does. > Computers also can't calculate all of the variations. How about this: "tactical rating" == performance on tactical testsuite (this means clear tactical problems - not ones that can be "solved" by king safety evaluation or passed pawn evaluation) "positional rating" == actual rating - tactical rating Of course it's true that the positional level of an engine does not come only from the evaluation function. A deeper search will appear to understand more, while wrong pruning can give the appearance that the engine understands less. Vas >Also, an ELO rating is only a relative indication of who is better. Only ELO >differences matter. If I came up with a test that gave you a tactical and >positional rating in ELO points, it wouldn't mean anything to people or engines >that didn't take the test. I could have a 5000 ELO rating in some rating pool, >but if Kasparov entered that rating pool, he would have around a 6800 ELO >rating.
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