Author: Uri Blass
Date: 12:38:23 12/11/02
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On December 11, 2002 at 14:59:56, Nicolas GUIBERT wrote: > >>DIEP without book, just like any of the chess programs without book, >>will do way better than draughts programs without book. > >I wonder where you get this statement from. This is absolutely stupid. Sorry, >stupid is the word. I agree chess programs and draught propgram have no common game that they know. > > >>With a 1998 book (outdated, i lost points becuase of it) in draughts >>and a program with 2 days of work out of januari 99 i could get 4th, >>even having *major* bugs in many patterns. > >If you really lose because of the book (I have doubts about this), it does not >mean that the theory that is in your book is outdated, it simply means that the >opening line does not fit your program's knowledge. You allowed it to play >positions that it does not understand. > >Please publish here the openings where Napoleon lost because of it. I'd like to >have a look at them. > >>In computerchess either of that would lose. A 1998 book gets killed. > >I believe you. This is absolutely wrong in draughts. Just don't play the latest >theoretical lines in the tense opening and that will be enough. That is quite an >easy thing. Do not believe vincent. In chess a good book is a small advantage but if you do not plau the latest theoretical lines you do not need to be afraid. It is easy to get the opponent out of book in few moves with equality with white and slightly inferior position with black. good book is an advantage but not a big advantage like vincent describe. > >I don't know the exact answer, but you will probably tell me. > >How many opening moves are playable in Chess ? I mean on first move ? And how >many playable replies on each of them ? Would you play a2-a3 as a first move ? >h2-h3 as a first move ? Surely not. a2a3 is playable as the first move. It is not considered as best but it is certainly not losing. You can expect 50% with that move when in normal opening you can expect 55% with white. > >In draughts all 9 opening moves are playable and almost all 9 reply moves are >also quite playable. Isn't it a big difference that makes the use of book much >less important in Draughts than in Chess ? The situation in chess is similiar. You can play almost every move with white with expected result of not less than 50%(there may be few exceptions like 1.f3 but even the exceptions are not clearly losing moves). Uri
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