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Subject: Re: 10 hour study of game 1 of 6 deep blue vs kasporov

Author: Uri Blass

Date: 07:27:40 09/11/01

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On September 11, 2001 at 10:19:31, Robert Hyatt wrote:

>On September 11, 2001 at 08:51:20, K. Burcham wrote:
>
>>
>>
>>
>>
>>i understand your explanation for the Rg8 and the Rf5 moves bruce.
>>that deep blue might have seen a loss in both of those lines.
>>
>>
>>i only use the word blunder when during normal game mode or in
>>      analysis mode the score will jump maybe 2 or more points,
>>when the next move is made.
>>
>>for example in this deep blue blunder    SOS   scores this position
>>  black is down -1.65. at depth 15.  you can see in the analysis that
>>the score imidiately jumps and climbs to  +6.41 for white with 44. ...Rd1.
>>
>>in the case of the deep junior vs shredder, in the world championship
>>    i have analyized the 5+ change in score. this was not a single
>>         move blunder like defined above. in the deep junior game
>>     shredder didnt have a clue of the deep pawn value and its ability
>>   to stop them.  then when it finally saw what was really going on
>>shredder started adjusting its eval very quickly, and the score jumped
>>   5+ points.
>>
>>and i am aware that you already knew all of this----i was just explaining
>>    my logic for my applicaton of the word blunder.
>
>this just means that SOS doesn't understand the position yet.  When I ran
>this, I got +3.5 or so.  On Rd1 my score gets significantly worse.  Which
>simply means that they probably searched the alternatives deeper than I did
>and found that they were bad also.

I rememeber that they admitted that Rd1 was result of a bug.
Their score for Rd1(-1.80) does not make sense
in every reasonable depth

They did not play Rd1 because they found
that the alternative is worse.

Uri



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