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Subject: A Camparison of Fritz6 and Deep Blue1996 Deeper Blue 1997

Author: ALI MIRAFZALI

Date: 12:56:06 09/15/01


Although much has been said about moves like Be4 in game 2 of the second match
with Kasparov and h5 in game 5 of the second match because of the great
controversy that these moves have generated;the positions that happen
after these moves are not a good comparison test for seeing if current
commercial programs running on ordinary machines play at or beyond the level
of deep Blue.Let me first turn my attention to the first match game 5.At move
29 Deep blue plays29.g3? Kasparov says that after 29.Ne2 Rxe2 30.Qxe2 Qa1+
31.Nc1 White may be able to hold but the chances are still in Black's favor.
Interestingly Fritz6 chooses 29.Ne2 in this position(under 3 minutes 450MHZ).
In the same game at move 12 Deep blue plays 12.Rae1 .This is the case of moving
the Wrong rook.In the same position Fritz6 plays Rfe1 instantly.There is no
doubt that these positions prove that chess Knowelgde is very important for
chess programs.Since the Hardware that the deep Blue program was running on
was more powerful than anything commercial programs are running on even today
;the question of the Camparison of a top commercial program like Fritz6 and
Deep blue comes down to this question:In a series of games will positions
that require chess knowledge for the selection of the best move occur more
often then positions requireing computational power? From the 2 matches with
Kasparov we can safely deduce that Deep Blue did not have much chess knowledge
in Camparison with Todays programs.Now let us see an example for Computational
Power.In the same game(game5 first match) at move 32 Deep Blue plays 32.f3
Fritz6 (450Mhz) even after ruuning for 20 minuetes plays 32.gxf4 which is worse
than f3 because it leads to a faster loss.Although my Statistical Analysis
is rather shallow;it seems on the surface that chess positions that require
chess knowledge come up more often than positions that require Pure
Computational Power.(in this particular game 2 to 1).I am definitely NOT
saying that speed is not important for chess programs .What I am saying though
is that beyond a certain proceessor speed any increase in the Speed of the
Proccessors will result only in a minimal increase of Elo for the Program.
There is enough Computational power available on an average home PC as to
enable a good chess program to see the immense majority of tactics and
deep tactical lines.Now let's go to the second match.In game 1 at move 22
Deeper Blue played 22...g4.Yasser Seirawan says"it was better to play
22...Bg6 ,covering the f5 square and awaiting further developments".
interestingly 22..Bg6 is also the move chosen by Fritz 6 in this position(450
MHZ).So we see that Fritz6 making moves reccomended by GM's while we can
not deduce the same about Deep(er) blue.It seems that the opinion that
Deep Blue is better than the Current Top Programs is more Psychological
than based on fact.It seems that some people want to have an Ultimate Program
(Standard) by which to measure other programs by.On the other hand it is an
interesting question to ask what rateing Deeper Blue would have if it was
tested by SSDF?
.



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