Author: Uri Blass
Date: 13:06:01 11/19/02
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On November 19, 2002 at 14:31:47, Bob Durrett wrote: > >The typical opening book, it seems to me, is designed to give the chess-playing >program the highest probability of success. That may be it's weakness! > >To improve the statistics, the designer of the opening book will naturally >include responses to the moves which are most likely to be played. > >Similarly, to improve the statistics, the designer of the opening book will >provide responses to the moves which are considered to be the most challenging. >For example, an opening book for the engine playing the black side will have a >lot for 1.e4 but maybe nothing at all for 1.h3. > >Generally, early queen sorties are regarded, by the "learned" people, as being >not worth preparing for. It is assumed that the engine will easily find the >refutation without the help of an opening book. > >But is that really true? Or is it *merely* a universal but false assumption? > >It occurred to me to use my CB8, with Fritz7 as an analysis engine running under >CB8, to see how well early queen sorties fared, historically, in human praxis. > >I began with a query to identify all games in which White played a queen move on >his second move. Amazingly, there were more than 1000 of these games in >Chessbase's Megabase 2002 database. I then sorted the games by ELO. Another >surprise! There are many different openings of this type. > >I'm now beginning to believe that it would be possible to produce an >anti-computer opening repertoire consisting solely of openings with early queen >moves. > >Here's an example: > >1.d4 f5 2.Qd3 > >If 2...d5 then maybe best is the line 3.c4 e6 4.g3 c6+/=, which might retain a >slight advantage for White if Black deviates from this line early enough. > >If 2...d6 then either 3.e4 fxe4 4.Qxe4 Nf6 5.Qe3+/= or 3.Nf3 Nc6 4.e4 +/= > >If 2...e6 then 3.e4 fxe4 4.Qxe4 Nf6 5.Qh4 b6 6.Bd3+/= > >The question is: would your engine find it's way through this analysis? The question is if humans can find the right lines. I suspect that if these lines can be used against computers then they can be also used against GM's. Uri
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