Author: Robert Hyatt
Date: 10:34:40 06/28/01
Go up one level in this thread
On June 28, 2001 at 12:33:04, Uri Blass wrote: >On June 28, 2001 at 10:55:21, Robert Hyatt wrote: > >>On June 28, 2001 at 09:16:47, Uri Blass wrote: >> >>> >>>The book does not include every legal move so practically you need clearly less >>>than 197000 moves to cover 4 plies in your book. >>> >>>Another point is that some of the positions are the same with different order of >>>moves and you only need to rememeber the positions >>> >>>It is possible to cover 6 plies and it is practically enough to avoid repeating >>>the same line gain and again. >> >>This is one of those cases where it "looks easy" but is not. Try to sit down >>and write such a book and see how hard it is to type a few hundred thousand >>moves and make sure you don't include moves that lose quickly. > >The computer can do it automatically and find some moves that do not lose >immidiately. > >If it needs to analyze million positions for that purpose then it is possible to >do it by analyzing every position for a minute. > >It is possible to do it in a few monthes by using some computers for this >purpose. >> >>Then the book learning is going to make you try each choice for the computer >>and then nix it when it loses. Meanwhile, the same theme arises over and >>over with the computer out of book. If it has an opening weakness, it will >>be obvious... >> >> >> >>> >>>The computer can avoid repetition of the same 3 moves in hundreds of games >>>when it has 5-10 responses in almost every position. >>>Even if you use only 2 plies you can get a lot of different games. >>> >>>first game may be 1.e4 c5 2.Na3 d6 >>>second game 1.e4 c5 2.Na3 e6 >>>third game 1.e4 d6 2.d4 Nf6 >>>4th game 1.e4 c5 2.Na3 Nc6 >>>5th game 1.e4 e6 2.Qe2 e5... >>> >>>You are going to need a lot of games to get one repetition of a line that was >>>played in the past and humans have better things to do then to learn hundreds of >>>lines against the machine and they need not only to learn hundreds of lines but >>>also to find hundreds of lines to beat the machine. >>> >>>Uri >> >> >>You don't necessarily have to repeat the same "game" to win over and over. >>The computer is out of book so quickly the same weakness will be seen repeatedly >>since the book is not really helping it when it is that shallow. > >The point is that the opponent will have to think in the game and simply >repeating is not enough so it is going to make it impossible for 2100 players to >win again and again or to win by repeating the same opening every game with the >idea of trying to correct the error in the next game. > >Uri We are talking about two different things. I am thinking of the case where I take you out of book quickly, and then set up a stonewall-type attack, for one specific example. I won't be repeating the same _moves_ necessarily, but I will be repeating the same _theme_ over and over and over...
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