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Subject: Re: Crafty-Fritz

Author: Robert Hyatt

Date: 19:25:41 10/28/97

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On October 28, 1997 at 19:46:57, Robert Hyatt wrote:

>On October 28, 1997 at 19:42:37, Willie Wood wrote:
>
>>Bob,
>>
>>Congrats on your standing after round 5.
>>
>>Did you happen to look at 35 Bd8 in round 2?  A couple programs I have
>>show Be3 as the move.  Was there some time pressure?
>>
>>WW
>
>
>I just started crafty to "annotating" round 2.  I will look at it
>shortly.  My opinion is that had Frans done the endgame database probes
>"right" he would have won.  He does 'em at the root, which let crafty
>search to a drawn position and force it on him.  I suspect he will
>change this by next year.  :)
>
>More info after I look at the games...
>
>Been very "lucky" so far I think.  Luck will only take you so far before
>it fails...


looked at the first 4 rounds.  I think Crafty was pretty lucky, as it
showed at least two evaluation "problems" that need attention.  In the
Fritz
game it allowed the bishop to get trapped rather than losing one of
those
passed, connected queen-side pawns.  Fortunately it knew that KRN vs KR
is
almost always drawn, and with the databases it knew *exactly* when this
was
true.

In round 3 (I think) it was also somewhat lucky, as it gave up a pawn to
prevent the opponent from castling.  This might be ok, but it had to
trade
queens to close the deal, and simply ended up a pawn down in an endgame.
 It
managed to outplay the opponent, but this could have easily been a draw
or a
loss.  It seemed to understand advanced passed pawns much better than
the
opponent however and sort of swindled a win.  I'm going to look at this
and
hope it doesn't happen again, since there is no way to get code changes
to
Jason because the tournament hall has *no* outside connection.

It hasn't played its best game yet, I predict.  I hope it has played its
worst already, however.  :)




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