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Subject: Re: Robert, Deep Blue Question

Author: Robert Hyatt

Date: 09:29:23 12/18/02

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On December 18, 2002 at 07:37:32, K. Burcham wrote:

>
>
>
>Is it possible for this to happen?
>
>Example:
>Chess engine is playing a game, game is on about move 30.
>Time control is 90/30.
>
>Chess engine has move "a" as best move at one minute.
>Chess engine has move "b" as best move at two minutes.
>Chess engine has move "c" as best move at three minutes.
>Chess engine has move "d" as fourth best move during all of this time.
>Chess engine has move "d" score as -6.
>
>Chess engine at four minutes sees move "a" is a mate in 12.
>Chess engine at five minutes sees move "b" is a mate in 16.
>Chess engine at six minutes sees move "c" is a mate in 18.
>Chess engine time control forces move at six minutes and plays "d" because
>   "d" has best score because a,b,c it sees are mates. "d" is also a mate but
>      program does not know this at six minutes.
>
>so question is. is this possible?
>
>kburcham


It certainly is.  That is one reason that tactical tests generally are not
good predictors of playing strength, as often the right move is played for the
wrong reason...



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