Author: James T. Walker
Date: 16:18:34 05/04/02
Go up one level in this thread
On May 04, 2002 at 18:24:15, Ferdinand S. Mosca wrote: >On May 03, 2002 at 17:57:54, James T. Walker wrote: > >>On May 03, 2002 at 17:23:34, Ferdinand S. Mosca wrote: >> >>>On May 03, 2002 at 15:52:20, James T. Walker wrote: >>> >>>>I've been looking at the Nunn test positions and I have some questions. In the >>>>Fritz database they are provided as 10 positions. Why is the first position >>>>listed with "line" and the rest have either "1-0 or 0-1"? Are these the >>>>expected results? >>> >>>Hello James, >>> >>>I expect it is the expected results. >>> >>>>In the Nunn2 test positions they are all listed with "line". >>> >>>Yes and according to GM Nunn, those positions are from a practical games where >>>one side's winning frequency is not greater than 60-40. I still guess that one >>>side has the upper hand but only minimal, but of course it is interesting, maybe >>>engines will be able to find a promising plan/novelties through continuous test >>>and learning, like the following position from a game Chess Tiger 14-Junior 7, >>>from OP 2002 published by Kurt. >>>Chess Tiger here played Bc1, which I think is a novelty, >>>more common here is Bf2 with queenside play to follow. >>>[D]r1bqnrk1/ppp1n1bp/3p2p1/3Pp3/2P1Pp2/2N1BP2/PP2B1PP/R2QNRK1 w - - 0 12 >>>Is Bc1 reasonable? now look what happened to the game, is that line playable >>>against a human opponent? >>> >>>>If in the first case they are not expected results and they are considered equal >>>>positions I guess they should all show "line" as a result. I would like to make >>>>an opening book for testing using the Nunn positions. How can I make Chessbase >>>>programs use each position when I want it to instead of random selection as >>>>would be the case normally? Of course the reason for this is to facilitate >>>>running test using auto232. Should I make one book out of each position and use >>>>that book for each test? >>> >>>I think so one book for each position. >>> >>>Dinan >>> >>>Maybe I have answered my own question for that part!? >>>> The reason is I don't like "engine/engine" test with pondering off. Since I >>>>have 2 computers and auto232 I prefer to test that way. >>>>Thanks for any help. >>>>Jim >> >>Hello Dinan, >>Well I tried the one book for each position and can't make it work. The problem >>is that Fritz/Hiarcs etc will not use the book. When starting auto232 I get >>warning signs that the book is too small and ask if I want to continue. I click >>continue and the game starts but the programs will not use the simple book. I >>guess the Chessbase GUI has something to do with this nonsense. I tried >>increasing the weight of each move from 0 to 100 but it made no difference. If >>anyone has any suggestions on how to make the programs use the simple book >>please let me know. >>Jim > >I have tried this one, but in one computer engine matches. >1. Make a book named nunn1 intended for position no. 1 from nunn.pgn or >nunn.cbh. >2. Import all the 10 games to the book, and modify the book moves by making >every move on game no. 1, the main move. (right click on the move and choose >main move say from 1. e4 c5 etc.) >3. So for opening position 2 make a book named nunn2 etc. > >Under book option use optimize and then choose minimum games = 1 for each >engine. > >Regards, >Dinan Hello Dinan, The problem is the Chessbase GUI. When starting auto232 it resets the book options for "optimal". So minimum games goes back to 2 automatically. I give up on this project. Chessbase seems determined to control what you can/can't do with the programs. Either that or they simply have no control over the final product behavior. Jim
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