Author: David Dory
Date: 02:29:07 10/11/02
Go up one level in this thread
On October 11, 2002 at 00:59:36, Slater Wold wrote:
>On October 11, 2002 at 00:25:27, K. Burcham wrote:
>
>>
>>
>>Robert, I know you are more qualified than most to have an opinion about this
>>comparison of Deep Blue to Deep Fritz. I know you have many reasons to have
>>formed this opinion. As you know I find the electrical/mechanical machine we
>>call Deep Blue very fascinating for its time.
>>
>>I have heard your comparisons about hardware, software, search depth, memory,
>>search methods, etc. that explains some of your reasoning about comparing Deep
>>Blue to todays programs.
>>
>>My question is, separate from all of this technical discussion, do you have
>>several moves that you have studied with todays programs that you know these
>>programs cannot find?
>>What have you found to be the most difficult of Deep Blues moves?
>>Would you please post your findings here for others to study?
>>
>>thanks
>>kburcham
>
>I have read just about everything there is to read about DB. Lectures, thesis,
>ICCA journals, everything. While I'm not Bob, I will take a stab at answering
>your questions.
>
>
>DB and later DBII were massive machines. DBII had 400+ CPUs designed for the
>sole purpose of examining a chess board. While I believe that the software was
>not as advanced as todays, I do have to remind you they did some pretty fancy
>extensions (among other things) that cannot be afforded on a PC at this time.
>
>Did DB or DBII ever make a move that cannot be reproduced by a computer now?
>Not that I have found. If you give a certain engine a certain amount of time,
>most will always find DB moves. Some faster, and some slower. Some a lot
>faster, and some a lot slower.
>
>Why?
>
>Anyone can look at the games played against DBII and tell Kasparov was *not* on
>top of his game. DBII was never given the oppurtunity to shine, thus, it never
>did. There are I believe 2-3 positions in DB/DBII's history that still give
>some programs a hard time, but nothing that switching PCs or programs won't
>solve.
>
>However.
>
>You can look back at Deep Thought and Deep Thought II and pick some of it's
>games to compare. Granted, you will not have a one on one comparison, but you
>will have a close one. DBII was fairly stronger than DTII, however, they are in
>somewhat the same realm.
>
>Nolot.
>
>Back in the 90's when Nolot released his position suite, he said that it would
>be 10+ years before computers where getting these moves (and lines) right. DTII
>completly squashed Nolot. At that time, no program or PC could even *dream* of
>getting those positions solved. At present day, *some* programs with good HW
>can get *some* of the Nolot positions correct. AFAIK none do as well overall as
>DTII. And please, try to keep in mind DTII was 2 generations before DBII. 2M
>nps vs 200M nps. (Ok, 150M nps. Whatever number you want to pick.)
>
>TPR.
>
>DTII was crushing GMs at a time where if you had brought a PC to play a GM,
>people would laugh at you. After the Kramnik-DF7 match, it's looking like
>you'll get this same attitude nowadays.
>
>
>I will leave you with this; why if we have advanced SO much in computer chess,
>is the "best" computer chess software on the best computer hardware getting torn
>apart by a GM? Because he got the software in advanced? Give me a break.
>That's part of normal chess. You study your opponenets before you play them.
>You don't think Frans and his crew were going over ever Kramnik game played? I
>am sure it helped Kramnik, but nothing like most people think.
>
>
>Look at the DT games. Look at the DF games. It is clear to me that there is a
>pretty huge difference in quality of play.
I pretty much agree with Slater except:
* Kramnik's prior time with the program was, IMO, VERY helpful
Prior experience with DF is a HUGE benefit to Kramnik.
"Know your opponent, and know yourself, and you may fight many battles
without a loss."
* DT beat a few GM's, but NOT the cream of the GM crop. Bent Larson and
Arnold Denker (at what, 70 years of age?) are NO Kasparov or Kramnik!
Also, as mentioned by Hyatt and others:
* Time control favors human, not DF.
* Agreement by Fritz team not to change parameters of DB is pitifully wrong
and hopefully, not repeated in future matches
The results of this match show the real importance of bringing in a top GM to
help with the "final touches". Hsu did this with Joel Benjamin (and others), and
clearly DB was better for it in the re-match with Kaspy.
All the DB bashers may write till they're blue in the face. How primitive DB's
algorithms were, how shallow it's depth of search really was; they make DB sound
like it's too inept to play Tic-Tac-Toe and get a draw, FCOL.
But then there's the facts, the wins against Kaspy, and that's just something
that can't be blown away with tweedle-dee-dum theories, try as they may.
David
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