Author: Robert Hyatt
Date: 07:27:47 09/11/04
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On September 11, 2004 at 08:05:17, Sune Fischer wrote: >On September 10, 2004 at 21:25:20, Robert Hyatt wrote: > >>I wrote Crafty to play chess, within a fairly tighly defined set of conditions. >>It can play Fischer-random. > >I think you mean shuffle chess. No, I mean fischer-random. I've never released this version because of the eval issues. For example a bishop at b1 is a problem since I have code to discourage the very pawn pushes needed to free the bishop. Doing castling right was not hard, but altering the eval to do that right is not so easy. > >>But not exceptionally well as it doesn't have an >>evaluation that understands the odd starting positions. It will play the wild >>game on ICC where all the pawns start on the 7th rank ready to promote, and all >>your own pieces are in _front_ of those pawns. Its eval has no idea about that >>game other than what the tactical search can discover. > >It just depends on what one is interested in, it might be that the user/tester >has a broader taste in openings and wants to see how the engines do given those >circumstances. > >Of course you can make your engine play e4 constantly to get a higher rating if >that's all it knows how to play well, but personally I don't understand why that >would be interesting from neither a development or user point of view. > >In the long run I think it is actually a bit damaging for the development to >impose this kind of restriction. > How does your program do in 1. g4 openings? :) >>>Suppose a Correspondence player play a game and start from the opening book of >>>engine A Now comes engine B and C that are better than A and D that is slightly >>>weaker than A but is considered to have bad book and people claim that it is >>>weaker than A,B,C because of having bad book. >>> >>>The player need to decide if to continue to use A or to go to B or C or D. >>> >>>In that case it is logical to do a turnament between A and B and C and D when >>>all Use A's opening book. >> >>To the man who has a hammer, everything looks like a nail. >> >>Would you ask a player that specializes in d4 openings to give you advice on a >>king's gambit line? >> >>I wouldn't... > >Hence the need to subject the engines to all kinds of different positions to see >which one is the strongest "on average". > >-S. Which GM is best "on average"? answer: Unknown. Next question, "Who cares?" Answer: Nobody I know of since matches to determine this are never played.
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