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Subject: Re: Behind deep Blue

Author: Uri Blass

Date: 15:44:46 10/22/02

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On October 22, 2002 at 18:26:55, Robert Hyatt wrote:

>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...

I remember that I saw analysis with moves but unfortunately I did not save it
Some search that I did today did not help and a lot of links that worked in the
past do not work today.

Uri



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