Author: blass uri
Date: 21:18:41 06/04/99
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On June 04, 1999 at 18:55:45, Stephen Ham wrote: <snip> >Regarding opening books, some people said that small opening books are not a >handicap. That astounds me! For example, it seems on average the CM programs >left the opening book by move 8. Since the other programs were still in theirs >after twice that number of moves, that means that CM had to find "book" moves >for at least another 8 moves. Since the other programs had yet to expend any >time, CM in a 40/2 time frame (3 minutes/move) thus used 24 minutes or 20% of >all it's alloted time for the entire game just to get to the point where the >other programs start to calculate. being 20% faster is not a very big advantage in computerchess. chessmaster can earn only 10-20 elo rating from having the moves that it finds in the opening book. If the big book of the opponent is sometimes wrong even only in 10% of the cases then it is not clear if chessmaster's small book is a disadvantage. Uri
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