Author: john warren
Date: 16:55:35 07/21/02
Go up one level in this thread
On July 21, 2002 at 19:46:20, Ed Schröder wrote: >On July 21, 2002 at 18:47:34, martin fierz wrote: > >>i think thorsten czub posted a couple of games here between rebel XP and fritz, >>with XP coming out as a clear winner. but they were just a few games... > >>ed, you sure have a great chess engine. why do you have to make such strange >>statements on your webpage like: >> >> >>"Rebel is famous for its playing strength and is feared among the world top >>chess players, Rebel for example never lost a serious match against the top >>chess players of the world. Rebel until now played 4 chess matches against Super >>GM Arthur Yusupov (1997), Super GM Vishy Anand (1998), GM John van der Wiel >>(2001) and recently against top player Loek van Wely (2002) and only Super GM >>Loek van Wely was able to hold Rebel on a 2-2 score, Rebel won the other 3 >>matches. No other chess program in the world has achieved that result! " >> >>it is beyond me how you can compute an overall match result in the matches where >>you mixed blitz, rapid and classical chess (i mean, i understand what you do, >>but i don't understand why... except of course for marketing reasons). "only >>super GM van wely was able to hold rebel to a 2-2 score" because he had the >>longest time controls. probably any other chess program in the world would beat >>yusupov and anand in blitz matches. > >Two remarks: > >1) the match against Yusupov was in 1997, it was played on a poor Pentium-266. >At that time (1997) it was totally unclear if a chess program could win against >a top GM, note that Yusupov was the world 10th player in that time. > >Furthermore the GM and me they negotiate a scenario where both camps think they >have a chance to win the match and so it happens, thus the one with the most >points wins the match. That's crystal clear from the beginning. Nobody starts to >play such a match against a computer if he thinks he will lose. > >Anand (1998), same procedure. Note that 2 tournament games where part of the >match, also Anand at that time was considered the best blitz player of the >world, maybe he still is. > >2) Of course a home page is meant for promoting your stuff. If you want to sell >something you present the stuff you sell in a honest and attractive way. Ever >heard a general saying to his soldiers, "hi guys, sorry to bother you but >whenever you have the time give me a little bit fire" when the enemy is coming? >No, a good general says: FIRE! > > > >>"The chess engine has gained +33 elo above its precursor Rebel Century 4 which >>is considered as a great improvement when you realize Rebel Century 4 was >>already rated above 2700 because of its performance against Super GM Loek van >>Wely. Therefore Rebel XP is estimated to play in the area of 2730-2750 elo being >>a Super GM itself." >> >>33 elo? or 32? again, a statement which comes from nowhere! how did you measure >>the improvement in playing strength with such accuracy? given the controversy >>over computer ratings i'm sure everybody here would like to know... >>rebel century 4 is NOT rated above 2700 because of it's performance against van >>Wely. from a 4-game match you cannot deduce a valid elo rating. >> >>why don't you just stick to the chess part and only show the positions where >>rebel has improved? that's really impressive. marketing hype like the above is >>not. > >The elo 33 gain was measured from a 400 games at 30 secs\move against Rebel >Century4. > >Ed > Hi Ed Do you have the Pgn file for the 400 games? If so, It would be nice if you posted them on your site. > >>aloha >> martin
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