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Subject: Re: Is the crafty approach to pondering the right one?+suggestion

Author: blass uri

Date: 14:30:09 05/24/00

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On May 24, 2000 at 17:20:29, Mike S. wrote:

>On May 24, 2000 at 15:36:55, blass uri wrote:
>
>>The program has no idea about the difference between the best move and the
>>second move.
>
>Really not? And how does it choose which is the best one to expect? Maybe I
>would have to be a programmer to understand this. I seem to have a too simple
>idea of a search tree...(?)
>
>Regards,
>M.Scheidl

You do not have to be a programmer in order to understand it.

I will give you an example.

Suppose the program see that 1.e4 gives 0.1 advantage for white and suppose that
it also see that 1.d4 d5 gives 0.09 pawns for white.

It does not have to analyze 1.d4 Nf6 in order to know that 1.e4 is better than
1.d4 (1.e4 gives 0.1 pawns for white and 1.d4 gives at most 0.09 pawns
advantage).

In order to save time it does not analyze 1.d4 Nf6

Suppose 1.d4 is the second best move.
It cannot know what is the evaluation of 1.d4 because it may be 0.09 pawns for
white if d5 is the best move for black and it may be 1 pawn for black if 1.d4
Nf6 gives 1 pawn advantage for black.

Uri



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