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Subject: Re: Interview with Ruffian programmer comment

Author: Chessfun

Date: 09:38:07 10/10/02

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On October 10, 2002 at 10:07:06, Mogens Larsen wrote:

>On October 10, 2002 at 09:12:11, Mike S. wrote:
>
>>How can you tell *how* new moves were added to the book? I mean, isn't it
>>possible that a PGN collection is updated with new games, and the automatic
>>generation process is repeated?
>
>Quite. And it is also possible that games have been removed as well. If you
>cannot tune the book manually, removing or adding games with certain variations
>is the only method. A very rough method of customization. To prove manual
>adjustment, it's necessary to show that the move hasn't been played previously


Simple, I say again. Check the PGN's I posted. Compare that to Ruffians output
and it's current PGN move, then see Fritz 7.ctg.

The ONLY way these moves were added to the current book were either manually or
by creating two specific PGN's for these losses and adding those. That to me
don't comply with the statement made;

"I haven't spent any time to create an opening book for Ruffian. The opening
book is automatically generated from a rather small pgn file. It has not been
customized for Ruffian."

Adding specific losses to the book creation PGN, is customization.

Sarah.



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