Author: Robert Hyatt
Date: 12:48:31 02/16/05
Go up one level in this thread
On February 16, 2005 at 12:09:08, Vincent Diepeveen wrote: >On February 15, 2005 at 17:43:32, Peter Berger wrote: > >>On February 15, 2005 at 15:57:20, Uri Blass wrote: >> >>>I think that Crafty did the expected result in WCCC. >> >>Actually you did predict it to the point before the tournament, so I agree with >>you. >> >>The influence of book is just *way* over-estimated by people who had a too low >>expectation of Crafty's potential. There were some games where Crafty's book was >>really fine, mainly against Shredder,Junior, Fritz and Sjeng . But it only got >>1/4 out of them, which means this includes most points lost. And the book >>variation chosen against SOS was bad, this one had been mostly untested due to >>lack of time, and just used based on analysis that didn't turn out to be >>relevant. >> >>I was unhappy with openings against Falcon, Diep and IsiChess, and they clearly >>left a lot to be desired. This time the net result was 3/3 though. >> >>I think Crafty had really bad books in most past WCCs it played in - this time >>it was quite OK, nothing more, nothing less. >> >>I can add further evidence for my assessment : the blitz event where Crafty >>finished 2nd, it played with a completely random ( and I mean it, because a >>screwed up non-working 32-bit one was used) book. >> >>I think people just tend to underestimate Crafty on strong hardware , especially >>several well-known programmers. It was even seeded 8th (!) by ICGA officials >>e.g., and this was not the least bit controversial with programmers present. The >>major reason probably is that under conditions more often used in tests at home, >>it can't compete with the top. I also think that it was indeed a very good and >>well-tested version. Crafty's released versions always goes up and down a bit. >> >>Peter > >At WCCC2004 i was a bit amazed to hear from all programmers that none of them >had even tested a single game against crafty. Perhaps junior did. If so then >that extra half point they scored against crafty brought them the world title if >you may say so. I would say that if "all programmers" said that, you can rest assured that not all programmers are honest. I had people helping me by playing games against various programs before the WCCC. Peter and someone were playing shredder and hiarcs games on ICC quite a bit using the opteron box and my dual for testing Crafty. Etc. > >Diep was tested against crafty at home. There was just 1 opening where diep had >problems with as diep strategically reacted wrong there. > >You played that opening against diep. > >By being quickly out book you also avoided Arturo's perfect preparation in that >opening to avoid horrors of diep. the horrors came however on the board from >both sides with crafty at the winning end. > >So IMHO you were the decisive factor there, whatever viewpoint you see it from. > >Additional no one is posting here another important factor. You did a perfect >operating job and managed to have a stable connection to the crafty machine. >Very unlike Uri Blass. > >You had prepared everything, including how to operate efficiently. There is many >ways to mess up and you messed up nowhere. > >Took always the strategic right choice. I'm not sure that you even realize how >many points it brings just to already choose the right opening against the right >opponent. > >Bad luck doesn't exist in that respect. You increased the winning chances of >Crafty simply. I had short before world champs hard statistics upon which >openings i would have a 100% winning chance and in which openings it was 90, >which it was 80 and only 1 it was real bad. > >You choose that opening and that's what mattered a lot. Can we avoid the science fiction stuff? Peter made a single "lucky choice" in choosing the only possible opening we could win? Just come back next time better prepared without that big a hole and then you should beat me easily, right? > >Vincent
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