Author: Don Dailey
Date: 19:41:57 12/29/97
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On December 29, 1997 at 17:41:52, Robert Hyatt wrote: >On December 29, 1997 at 16:03:23, Chris Whittington wrote: > >> >>But isn't the real flaw with tests that they test for finding solutions, >>but now how to get into those positions in the first place. And which >>posiitons steered to is very subjective. Tal would steer different to >>Tarrasch .... >> >>Chris Whittington >> > >The gripe I have is with "finding" in general. IE I'd like to find >some positions that are "positional"... where we all agree that a 4 ply >search is enough to see "why". Many positional tests are really deep >tactical tests. Others are positional, but they require deep searches >to see the "stinger" at the end, so faster searches again help. I'd >like to see a pure knowledge-based test suite where the "stinger" is >not so deep that it takes a deep search to find it. And where "right" >is =+1, wrong = 0, and the score at the end gives some measure of how >strong the program is. SO far I've seen nothing like this... Indeed, this is a good idea. We have started working recently on "compensation for a pawn" evaluation. We want our program to be able to correctly sacrafice a pawn and I don't mean psuedo sac where a really deep search only can see it. But one step in the right direction is a "problem set" with no solutions, only evaluations. To score this problem set you completely ignore the key move and look only at the score. I want to construct this set for my work on evaluation. The idea would be to provide a score that the computer should try to achieve and run the test for only a few seconds on each position. The closer the computer gets to the correct score the better it does on the problem set. You can easily fix it so that just jacking up all your positional scores do not enable the computer to score better by throwing in counter-examples and such. -- Don
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