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Subject: Re: Behind Deep Blue: 3rd print with new Hsu afterword

Author: martin fierz

Date: 05:38:14 05/10/04

Go up one level in this thread


On May 10, 2004 at 08:08:58, Uri Blass wrote:

>On May 10, 2004 at 07:33:38, martin fierz wrote:
>
>>On May 10, 2004 at 05:20:38, Uri Blass wrote:
>>
>>>On May 10, 2004 at 05:00:46, martin fierz wrote:
>>>
>>>>On May 08, 2004 at 11:51:12, Robert Hyatt wrote:
>>>>
>>>>>On May 08, 2004 at 10:50:57, Anthony Cozzie wrote:
>>>>>
>>>>>>On May 08, 2004 at 07:18:27, Vasik Rajlich wrote:
>>>>>>
>>>>>>>On May 08, 2004 at 04:34:40, Sune Fischer wrote:
>>>>>>>
>>>>>>>>
>>>>>>>>>>You are absulutely right.
>>>>>>>>>>It is obvious that humans already solved chess so they know if a move is a
>>>>>>>>>>blunder or not a blunder so you can be sure that all the question marks are
>>>>>>>>>>correct.
>>>>>>>>>>
>>>>>>>>>>It is also obvious that the number of mistakes is what decides the game so if
>>>>>>>>>>your opponent did 2 mistakes you can let yourself to do one mistake like letting
>>>>>>>>>>him to force mate and you are not going to lose.
>>>>>>>>>>
>>>>>>>>>>:_(
>>>>>>>>>>
>>>>>>>>>>Uri
>>>>>>>>>
>>>>>>>>>You know, Uri, I have never seen you do anything but post how other people are
>>>>>>>>>wrong (never with any reasons of course).  Many other people have noticed your
>>>>>>>>>unending flood of negativity.  It is difficult to consider this post as anything
>>>>>>>>>other than a flame.  It appears I am going to have to take off the kid gloves
>>>>>>>>>and dispose of you.
>>>>>>>>
>>>>>>>>Isn't it natural to only post if you disagree?
>>>>>>>>
>>>>>>>>Anyway, I suspect Uri has a point.
>>>>>>>>It's not unusual for computers to play "unatural" moves, just think of the
>>>>>>>>Hedgehog Junior played against Kasparov.
>>>>>>>>
>>>>>>>>All the time the GM's were saying how strange Junior's moves were, how "it
>>>>>>>>showed no understanding of the position" blah blah blah.
>>>>>>>>
>>>>>>>>So please explain why Kasparov suddenly had to fight for a draw after 10
>>>>>>>>questionmark moves from Junior!
>>>>>>>>
>>>>>>>>-S.
>>>>>>>
>>>>>>>I never thought this day would come - but I agree with Uri here. :-)
>>>>>>>
>>>>>>>Sports aren't about beautiful play. Sports are about winning. If someone is
>>>>>>>playing ugly, and winning, then it's your sense of aesthetics which needs to be
>>>>>>>reviewed.
>>>>>>>
>>>>>>>Computers have a long history of winning ugly. In the recent Fritz-Kasparov and
>>>>>>>Junior-Kasparov matches, the machines made many many more "mistakes" (according
>>>>>>>to human opinion) than Kasparov. But - if these mistakes aren't punished - are
>>>>>>>they really mistakes? Is it a mistake to leave Shaq wide open for three point
>>>>>>>shots? (Or send him to the line for "free" throws?) It's impossible to speak
>>>>>>>about objectivity here. You can only look at the results.
>>>>>>>
>>>>>>>Vas
>>>>>>
>>>>>>Let's take a look at some of the moves the annotator didn't like:
>>>>>>
>>>>>>[D]r2q1rk1/pp1n1ppp/2pbpn2/3p3b/8/1P1PPNPP/PBPN1PB1/R2Q1RK1 b - - 0 10
>>>>>>
>>>>>>Zappa plays the obvious 10 ...e5.  Deep Blue played 10 ...h6.  I won't call this
>>>>>>a bad move, but it's clearly a pass move.
>>>>>
>>>>>That isn't very convincing.  Did you look at _your_ PV?  move 4?  :)
>>>>>
>>>>>Order doesn't mean much to alpha/beta as it scores positions, not moves as they
>>>>>are played.
>>>>>
>>>>>First impression is that h6 and e5 transpose to the _same_ position...
>>>>>
>>>>>
>>>>>>
>>>>>>1... e6-e5 2. e3-e4 Rf8-e8 3. Rf1-e1 Ra8-c8 4. a2-a4 h7-h6 5. Bb2-c3 Qd8-c7 6.
>>>>>>a4-a5 Bd6-c5 7. Qd1-b1
>>>>>> = (0.25)       Depth: 12/34    00:01:09.00     41299kN
>>>>>>
>>>>>>[D]r4rk1/pp1n1pp1/2pbpn1p/q2p3b/8/PP1PPNPP/1BPN1PB1/R3QRK1 b - - 0 12
>>>>>>
>>>>>>Once again Zappa wants e5.  Deep Blue played Bc7, which is a pass move at best,
>>>>>>and I would think the bishop is actually better on D6.
>>>>>>
>>>>>>1... e6-e5 2. c2-c4 Qa5-a6 3. d3-d4 e5-e4 4. Nf3-h4 Ra8-e8 5. Nh4-f5 Bd6-c7 6.
>>>>>>Ra1-c1 Nd7-b6 7. c4xd5 Nb6xd5
>>>>>> = (0.24)       Depth: 11/32    00:00:49.38     30722kN
>>>>>
>>>>>Same comment.  Look at your move 5.  :)
>>>>>
>>>>>You agree with DB more than you think...
>>>>>
>>>>>
>>>>>>
>>>>>>[D]r4rk1/ppbn1pp1/2p1pn1p/q2p3b/7N/PP1PP1PP/1BPN1PB1/R3QRK1 b - - 0 13
>>>>>>
>>>>>>And Zappa is still dying for e5 :)  Deep Blue played g5?, which cannot be
>>>>>>considered anything but a blunder.
>>>>>
>>>>>Kasparov said "this is black's only hope.  Any other move simply loses.  This
>>>>>makes it a fight."
>>>>
>>>>which makes it pretty clear that before something already went wrong for
>>>>black... if you have to play g5, even if it's still a fight, something is very
>>>>wrong.
>>>>
>>>>cheers
>>>>  martin
>>>
>>>It is not clear for me.
>>>I know that pushing pawns near the king is bad in a lot of cases but it is not
>>>always bad and this is the reason that I do not have high scores against it.
>>>
>>>Uri
>>
>>there are instances where pushing pawns in front of your king is ok. there are
>>others where it's not ok. they are rather easy to distinguish most of the time
>>(some simple rules are sufficient for this) and i'm surprised that you don't
>>understand that it's not such a great idea here... i know you are a born
>>skeptic, but perhaps you should learn to trust people with more experience
>>sometimes :-)
>
>
>The rules that I use in movei are based on attack information of squares near
>the king.
>
>only not having pawns near the king leads to only a small panelty and it is not
>enough to convince movei not to play g5.

which basically means that movei is rather stupid in this respect :-)

cheers
  martin


>Uri



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