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Subject: Re: Nunn test questions / help please

Author: James T. Walker

Date: 14:57:54 05/03/02

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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



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