Author: Chessfun
Date: 19:13:03 10/09/02
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On October 09, 2002 at 18:45:19, Mike S. wrote: >On October 09, 2002 at 17:54:07, Chessfun wrote: > >>(...) >>As I posted previously and proved version 1.0.0 when released had modified book >>moves identical to Fritz 7.ctg. The previous version (see games below) openings >>did not contain these moves; >> >>So it would appear that someone did infact customize it prior to Ruffians >>release. Simply check the PGN with Ruffians current book and compare what was >>played to what is now listed. > >This doesn't seem surprising to me, because when testgames were played against >Fritz 7, or between any other engines where one used Fritz 7.ctg like they are >published, it's not unusual that such games come into a collection the book is >based on. - And if moves from the Fritz 7.ctg were successful in those (newly >added) games, it's only natural that they have higher weights in the Ruffian >book. You miss the point. Without looking at the games and Ruffians book and Fritz 7.ctg, it seems to be something you don't understand. These new moves in the current book were NOT added by PGN but were added as either direct input from Fritz 7.ctg or by direct input after analysis by the author. In either case the statement by the author Per-Ola Valfridsson (Ruffian): "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. "..........Is not true. Sarah.
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