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Subject: Re: What made Deep blue good? What will make programs much better now?

Author: Uri Blass

Date: 12:44:43 07/09/02

Go up one level in this thread


On July 09, 2002 at 15:30:28, Robert Hyatt wrote:

>On July 09, 2002 at 02:12:01, Uri Blass wrote:
>
>>On July 08, 2002 at 23:25:50, Robert Hyatt wrote:
>>
>>>On July 08, 2002 at 14:04:16, Christophe Theron wrote:
>>>
>>>>On July 08, 2002 at 11:36:09, Robert Hyatt wrote:
>>>>
>>>>>On July 08, 2002 at 06:25:57, Daniel Clausen wrote:
>>>>>
>>>>>>On July 08, 2002 at 02:28:03, Slater Wold wrote:
>>>>>>
>>>>>>>On July 08, 2002 at 00:32:42, Christophe Theron wrote:
>>>>>>>
>>>>>>>>On July 06, 2002 at 20:15:06, stuart taylor wrote:
>>>>>>>>
>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>I suspect that search may see that the right move help to push the opponent king
>>>>>>>>>>closer to the corner relative to the wrong moves and it may be enough.
>>>>>>>>>>
>>>>>>>>>>Uri
>>>>>>>>>
>>>>>>>>>Yes, that looks like the best thing to try and work on, doesn't it?
>>>>>>>>>
>>>>>>>>>If not, can I ask two questions?:
>>>>>>>>>1)What should be done during the near future to push computer elo forward as
>>>>>>>>>much as possible?
>>>>>>>>>2)If Deeper blue was really much stronger than todays tops, what was that due
>>>>>>>>>to? Better long-term planning? Seeing deeper?
>>>>>>>>>S.Taylor
>>>>>>>>
>>>>>>>>
>>>>>>>>Huge speed.
>>>>>>>>
>>>>>>>>It was doing most things worse than the best micro programs, but it was doing it
>>>>>>>>so fast that it was eventually stronger.
>>>>>>>>
>>>>>>>>Hum... Let me rephrase for the sensitive people out there. There was nothing
>>>>>>>>Deep Blue did better than the best micro programs. But it was so fast that it
>>>>>>>>allowed it to hide its defficiencies.
>>>>>>>>
>>>>>>>>Shit. That's not very diplomatic either. Let's try again: Deep Blue was build
>>>>>>>>around a concept outdated by 2 decades but fortunately it was so fast that
>>>>>>>>nobody noticed until their creators published their paper.
>>>>>>>>
>>>>>>>>Oops... OK, once again:
>>>>>>>>
>>>>>>>>Bob likes Deep Blue a lot, and that should be a reason good enough to convince
>>>>>>>>you that it was well designed.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>    Christophe  ;-)
>>>>>>>
>>>>>>>I too am a DB fan.  Just like Bob.
>>>>>>>
>>>>>>>But I actually agree with you here.  I don't think DB did anything
>>>>>>>*spectacular*.
>>>>>>>
>>>>>>>But I also know that Program X will be a _LOT_ stronger on hardware 100,000x
>>>>>>>times faster than anyone else has.  No matter how horrible the software side is.
>>>>>>
>>>>>>Sheesh, you guys! Of course they did something spectacular! But it's the
>>>>>>software/hardware package that plays chess, not just the software alone! And
>>>>>>they didn't buy the hardware around the corner, as you do with your PC. They
>>>>>>designed it!
>>>>>>
>>>>>>It's obvious that you guys seem to honour work in the software more than work in
>>>>>>the hardware. Adding feature X in the software is something great, but designing
>>>>>>DB's hardware which was Y time faster (Y being 200 and more) is "just faster
>>>>>>hardware". A bit unfair. :)
>>>>>>
>>>>>>Sargon
>>>>>
>>>>>
>>>>>OOhhhhh...  a good "counterpoint".  But it will fall on deaf ears, I
>>>>>predict.  After all, DB was inferior in every way except for speed and
>>>>>results.  And we all know results don't mean a thing..  it is _how_ you get
>>>>>those results that count...  At least to some, apparently...
>>>>
>>>>
>>>>
>>>>I think that in order to be objective one has to notice that:
>>>>
>>>>1) Deep Blue was a terrific hardware that has been able to achieve an historical
>>>>performance.
>>>>
>>>>2) On closer examination the algorithms used were not superior than the ones
>>>>used in micro programs.
>>>>
>>>>I have repeated 1 and 2 several times now. I think I should move on to more
>>>>productive tasks.
>>>>
>>>>
>>>
>>>
>>>We go around and around.  I have stated, 1000 times now, that what they
>>>did, they did _very_ fast.  What they did was clearly _not_ "inferior" to
>>>what everybody else was doing.  It was just done within the framework of
>>>"speed is what we are about and we can get away doing some things because we
>>>are so fast..."
>>>
>>>So they were about speed.  Blazing speed.  The program was not just a "weak
>>>piece of software" grafted onto fast hardware.  I think it pretty easy to
>>>conclude that by just taking a very poor search and evaluation at 2-4M nodes
>>>per second and watch a GM whittle it into small pieces positionally.
>>>
>>>It is _obvious_ to me that they had a _lot_ of speed.  But they had some
>>>other things as well...  Otherwise we will all be stomping GM players right
>>>and left.  Except they still "have their moments" on ICC...
>>
>>Fritz3 on p90 already did good result against GM's in a tournament(win and some
>>draws in 1994 or 1995 if I remember correctly) when it got an IM norm and it did
>>not search 2M nodes per second.
>
>So?  Deep thought was producing a 2650 rating a couple of years _earlier_.
>Which shows that the gap between Deep Thought in 1992 and Fritz in 1995 was
>_very_ significant.  And then Deep Thought turned into Deep Blue and went
>100X faster still.
>
>The gap widened seriously at that point...
>
>
>>
>>Fritz3 had more problems in that tournament against the weaker players because
>>the weaker player bought it and were prepared(something that the opponent of
>>deep thought could not do and looking at games is not the same).
>
>Ditto for deep thought.  It had played dozens of games in comp vs comp
>events.  It played in several open tournaments to produce that 2650 rating.
>IE it wasn't a "surprise" at all as everyone had access to dozens of games
>played by the machine...

Having games of the thing and buting the thing is not the same.

Uri



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