Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Tiger against Deep Blue Junior: what really happened.

Author: Chris Carson

Date: 11:31:48 07/26/00

Go up one level in this thread


On July 26, 2000 at 14:07:26, Ed Schröder wrote:

>On July 26, 2000 at 07:31:12, Dave Gomboc wrote:
>
>>You can believe any of the scholarly sources of information with Hsu and/or
>>other members of the DB team on it, like IEEE Micro for instance, or the paper
>>from an AAAI workshop last year.  Or, you can believe the web page.  It's your
>>call, Ed.
>>
>>Dave
>
>Okay... I get the point. Here is what I mean with all those contradictions
>between the IBM pages and other papers, statements and I will be detailed.
>
>This forum is about playing strength mainly, 90%? more..?
>
>For this reason only DB is a hot topic even after 3 years. It is about
>WHO is the STRONGEST. That is the MAIN question here and you can taste
>in almost every posting.
>
>We want to know which program is the best TODAY. This topic for instance
>started right after the Dortmund event, "is DJ stronger than DB" and off
>we went... another new endless DB discussion. New DB discussions will
>happen again and again until the question WHO is the strongest TODAY will
>be answered. Not really something to look forward when candidate number
>one is not present anymore.
>
>Now what bothers me is the following:
>
>PRELUDE: in this posting "IBM" stands for the whole DB team, Hsu and co
>included.
>
>198x - 1995: DT/DB dominates computer chess against 386/486/6502 machines.
>
>1995: DT lost the world championship in Hong Kong (just 3.5 out of 5)
>
>1991: DT doing 7 million nodes (source IBM)
>1995: DT doing 7 million nodes (source IBM)
>      DT doing 2 million nodes (source Hsu)
>
>1996: IBM claims 100 million nodes.
>
>100 million nodes fixed a huge image problem IBM had because of the loss
>of last year.
>
>It did the trick at least in my mind. Surely Hong Kong was a mistake and
>it would never happen again. So there was no question about it who was
>the strongest. Note that our minds are feed with information that comes
>from a commercial source and this information is still playing a huge
>role here in CCC even today trying to answer the question, WHO is the
>strongest. Who can beat 100 million nodes a second? Answer: none and
>this dominated our minds, even today.
>
>Until last year I had no single reason to doubt the numbers (or any other
>information) that came from IBM and took everything for granted that came
>from IBM. Today I doubt the jump from 2 million to 100 million. IBM had
>a very good reason. Image was on steak after the Hong Kong debacle. IBM's
>answer: 100 million. Problem solved. Most of us happily fell asleep.
>
>Now I am not the person to start conspiracy theories but this one touches
>the soul and existence of CCC which is playing strength and WHO is the
>STRONGEST.
>
>IBM has proven being a sloppy partner when the topic is giving right
>information. I like to mention all the contradictions as pointed out in
>the previous postings of the last days.
>
>I also like to point to the habit of IBM to come up with explanations
>every time they lose or make a bad move. The last example of this are
>the 6 games of DB-JR in Paderborn last year. The furious answer came a
>few months later high lighted as follows, literally:
>
>  "Ed Schröder has misused this opportunity at will, to make false
>   advertisement for his program".
>
>The story is pointed out on: http://www.rebel.nl/reb-css.htm
>
>Note this page needs an update as at the time I gave the case a rest.
>
>In email with Hsu one of the authors of Deep Blue it became clear
>to me that at least one of the main items of their defence (Deep Blue
>Junior thinking only 1 second per move) was not true as Hsu admitted
>that Deep Blue Junior at least used "panic time" when Deep Blue Junior
>found itself in trouble. Apparently this confession came because in the
>discussion I kept my point straight up having seen Deep Blue Junior
>thinking 10-15 seconds frequently, having witnesses of that too.
>
>I still keep my point straight up Deep Blue Junior using it's time
>control in the same way as any other chess program playing blitz.
>
>After that confession I stopped believing the whole story Deep Blue
>Junior just being a DEMO program of 2200 elo. Every time the machine
>loses it is something else. Saying first "one second" as a main point
>of your defence and take it back later doesn't sound good.
>
>Furthermore the documentation that came with the program (nor on the
>screen) did not mention any of the playing strength restrictions as
>pointed out by Hsu in the CSS article (see the URL above) so we took
>the thing for real otherwise we would not have touched the machine.
>
>I take these 6 games for real coming close to DB-JR real playing strength.
>
>These 6 games were played out of curiosity. The opportunity was there
>to learn something about the machine and we were expecting to be beaten
>badly by the monster. The opposite happened leaving Christophe, the
>spectators and myself in astonishment behind.
>
>There is also no doubt in my mind any other strong (amateur) program
>could beat the Deep Blue Junior in Paderborn. I don't want any credit
>for these games. This is just for the sake of the truth.
>
>Note: I have nothing against Hsu in fact I removed the 6 games from the
>Rebel Home Page on request of Hsu. Not that I was in agreement with that
>but I did it out of respect for him and his achievements and the joy his
>program has given me and the whole chess community.
>
>For me 2 points are most crucial:
>
>a) 2M (1995) to 100M (1996) real or not.
>b) Paderborn 1999 (DEMO program or not)
>
>These 2 questions IMO are touching the heart and soul to make up your
>mind about WHO is the strongest TODAY. Again IMO.
>
>Ed

Good points Ed.  Rebel has proven itself to be a very creative
GM strength program.  I am proud to have it as one of the two programs
I play against today and I will continue to get upgrades.  :)  It has
improved my chess game (at least in the opinion of the opponents I play).

You are right, performance is the deciding factor (all the rest is just
smoke and mirrors).  DB 97 gave a good 6 game performance, but never
repeated it and Rebel has given a tremendous performance over and over
and over again.  :)  Your eval and search algorithms have continued to
improve and evolve, DB is stuck in a rut and needs a lot of hype
(and anything can happen in a single game, ask Kasparov).  :)

Keep up the good work and soon the DB 97 TPR will fall, just as easily
as the 96 DB TPR did.  :)

Best Regards,
Chris Carson



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.