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Subject: Re: PRUNING?

Author: blass uri

Date: 09:51:21 04/13/00

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On April 13, 2000 at 12:21:31, William H Rogers wrote:

>My program generates say 30 possible moves at ply one and half of them return a
>negative score. Would it be likely to prune those moves out of the tree and thus
>speed up the program?
>I must mention that I evaluate each move as it is made.
>Thanks
>Bill

No

The evaluation is often wrong and there are many cases when the evaluation is
negative at ply one but positive after search.

Test suites are full with moves like this and in games one mistake because of
pruning a good move can cost you the game.

Uri



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