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Subject: Re: Behind deep Blue

Author: Robert Hyatt

Date: 15:26:55 10/22/02

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On October 22, 2002 at 18:08:43, Uri Blass wrote:

>On October 22, 2002 at 16:29:46, Robert Hyatt wrote:
>
>>On October 22, 2002 at 14:31:29, Uri Blass wrote:
>>
>>>
>>>I think that by this definition kasparov made at least 4 bad moves.
>>>
>>>1)Resignining in a draw position in game 2
>>>2)losing game 6(I do not think that h6 was the losing blunder but he did a
>>>mistake that lost the game)
>>>3)doing mistakes in game 2 before resigning that gave deeper blue the
>>>opportunity to win the game with Kh1 and not Kf1(I did not analyze to try to
>>>find the exact bad moves)
>>
>>Which move?  IE white may simply have a forced win, at least in that
>>opening, for all we know.  And note that Kh1 vs Kf1 is not a closed issue
>>yet.  Hsu claimed to have done some analysis with DB2 that suggested that
>>Kf1 is perfectly ok, but that a later rook move (Ra6 I think) actually allowed
>>the perpetual to occur.
>>
>>
>>>4)Missing a win in game 4 when Kasparov got a winning position in the endgame
>>>after 1.e4 c6 2.d4 d6(I read analysis that suggested a win for kasparov but it
>>>was not  simple win and I believe that it is not something that the programs of
>>>today can see,I remember that I could win programs by following the moves of
>>>black in the analysis few years ago but programs(at least at that time saw that
>>>kasparov is winning only many plies after the relevant position).
>>
>>I don't buy that one.  Until someone shows a move he missed that would have
>>resulted in
>>a forced win, or a move he played that resulted in a forced loss while he had a
>>drawing or
>>winning move elsewhere...
>
>I remember that I read analysis that said that he missed a forced win
>
>Unfortunately I did not save the analysis so I am not sure what was the exact
>moves.
>
>If I remember correctly it was in KRRPP vs KRRPPP when the 2 pawns of kasparov
>could be stronger than the 3 pawns of deeper blue.
>
>I could only find in the following link that kasaprov missed at least one forced
>win in game 4
>read the comments about game 4 in
>http://www.cs.vu.nl/~aske/db.html
>
>Uri


That seems pretty simplistic prose...   IE no particular moves given, no
particular
positions mentioned.  Just "seemed to be winning".  That's too simple a way to
make such statements and have them taken seriously...




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