Author: Jorge Pichard
Date: 04:11:23 09/03/05
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On September 03, 2005 at 05:56:56, Harry Schnapp wrote: > Hello Jorge, > Excuse my bad english. > It is correctly wich Gunther says. > And if both play with a same good book then most in ALL games ALL variants > contained in the book play up to the end!!.Not only very few moves at the > beginning as into many games. > That does not have to do with Spike 1.0 or Spike 1.0a,you adjusted the book > wrongly. > Toga wanted always to play from the book however Spike made own "courses" > and concomitantly he took Toga also out from the book!. > Regards, > Harry. Harrry I followed your recommendations, the only thing that I shortened was the amount of half moves which I limited to 12. The reason for this is that since both engines were playing with your Mainbook, I could NOT let it play up to the very last move. Since if you do this when two engines are using the same Book there always going to be one side either White or Black being benefited at the end or your 20+ moves. Another thing is that these moves were made by GMs which one of the two is always weaker than the other and after 20+ moves one side is always better. To avoid this I limited the moves to 6, which at that point the chances of benefiting one side is limited much more than with 20+ moves. PS: You said it yourself that it was not recommend for engines versus engines. Hints for optimal use: You can find more interesting hints in the Arena help on Arena book options! "My recommendations in the Book menu". · Use Arena’s mainbook: Activate. · Use transpositions: Activate. · Minimal conditions to play the move: Not Activated (Numbers remain on "0"). It is also possible to have these values set to "1" · Probability set by…: Priority: Cursor can be arbitrarily set from - to +! · Options of Priorities: Game Notation window (to the right of the chessboard), click on the Book tab. You will see the moves in the book and other detailed information. Now right click in this window. You can fix priorities. The values 0-9 regulate how often the move should actually be played. · Number of games: How important is the number of games in the playout preferences for you? CURSOR should be of MAXIMUM, Hint by Harry: June, 19th, 2004. · Win percentage: If the cursor is at the left, this option is deactivated. You can put in whether the win percentage affects the probability of move. CURSOR should be of minimum, Hint by Harry: June 19th, 2004. · Use book up to halfmove: If you don’t wish for long variations a "Limit" can be set here. If ALL Playout functions are switched off, lesser known variations are played also. I set the Limit to 12 for the reasons that I stated on top. Jorge start of page Chapter #2 Supplementary Notes: For Engine-Engine duels, the same book should be used for both engines, provided no book or a considerably weaker book is provided with the engine.
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