Author: Dan Homan
Date: 07:09:43 12/17/98
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On December 17, 1998 at 07:13:52, Ralph E. Carter wrote: >Hey everybody. There's a juicy scandal brewing over on rgcc. >See Robert Hyatt's replies to the latest post of Amir Ban. > >Subject: Re: Fritz 5.32: How disruptive to other engines? Thanks for pointing this out. I just read the relevant messages in rgcc. I wouldn't call this a scandal because I am sure that no harm was intended here; there are just conflicting design choices. I did check to see if my engine was affected though... I don't think EXchess is affected adversely by this, although it very easily could have been. When EXchess gets the "new" command, it resets a bunch of data but old stuff from previous searches is left alone. I could have easily have decided to reset some of this search stuff or even one simple parameter (which gives the engine information about the last pondering session) which would have made pondering impossible. This clearly wasn't done deliberately to disrupt the processing of other Fritz/Winboard engines. In fact the design makes sense from the point of view that the engines should work in analysis and in play. Certainly there are other choices that would work as well, but this one allows a very simple scheme for communicating a position to the chess engine that is the same in all situations. The problem comes when engines which are *not* designed to work as a chessbase engine are converted to the purpose. The design choices of a individual author may not (and in fact are quite likely to not) be completely compatitable with chessbase's design choice for engine interface. How much this conflict affects play will depend on the design of the engine and the type of match being played. - Dan
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