Author: Peter Fendrich
Date: 06:22:30 10/03/02
Go up one level in this thread
On October 03, 2002 at 07:56:37, Uri Blass wrote: >On October 03, 2002 at 06:12:39, Peter Fendrich wrote: > >>On October 03, 2002 at 01:23:07, Uri Blass wrote: >> >>>On October 03, 2002 at 01:06:05, Jouni Uski wrote: >>> >>>>Now when we know the facts: new program from scratch and 100 points stronger >>>>than Crafty (in comp-comp play at least). Quite an achievement or what? >>>> >>>>Jouni >>> >>>Bob only said that it is not a crafty clone. >>> >>>He did not check other options that he suspected(like checking if it is a clone >>>of one of the commercial programs). >>> >>>Eduerd Nemeth said that it's style is similiar to Fritz. >>> >>>Uri >> >>Let's forget all this clone stuff. There are no signs whatsoever that Ruffian is >>a clone or some kind of wrapped commercial, other than it's a hell of a strong >>engine. The "logic" that because this is a strong engine it has to be faked is >>just rubbish. > >I give the biggest probability to the event that it is an original engine >but it is natural to suspect after past cases when new strong engines were >discovered as clones. > >If it is a clone(I guess that it is not a clone) then the biggest probability is >that the programmer got the source code of Fritz and changed it. That probability is very close to zero, IMO. >What I do not like about Ruffian is that like Fritz it is using no zugzwang >verification. >Of course it is no evidence that it is Fritz clone(movei of today also does not >use zugzwang verification but it is going to be changed in the future). > >I also found that at 60 minutes/60 moves it is using sligthly less time then in >60 minutes/game and it is not a logical decision. I think the term "evidence" needs something stronger than that. Don't you think that if we analyzed Yace or some other strong amatuer engine in detail like that, we would find all sorts of similarities with comercial engines. Most chessprograms are based on the same basic algorithms and the styles are rather similar to each other. A strong amatuer engine with completly new tricks that are not in any commercial is rather unlikely. There "must" be some similarities with some commercial in order to be that strong. Peter >Uri
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.