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Subject: Re: Another Alpha-Beta algorithm question

Author: Tom Kerrigan

Date: 10:35:18 02/18/00

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On February 18, 2000 at 12:09:35, Jeff Anderson wrote:

>Hi, I am still trying to learn about the Alpha-Beta algorithm.  I have one more
>question.  Thanks to all the people that helped me before:
>
>With the Alpha-Beta algorithm does the program generate the entire tree and then
>score the remaining positions when there has been a cut-off, or when there is a
>cut-off does it not generate unnecessary positions at all?
>
>
>Thanks,
>Jeff

The alpha-beta algorithm is typically a recursive tree search. This means that
the tree is being traversed, and not generated. Only one position is examined at
a time. So if a cutoff occurs, it is pretty easy to "back up" and traverse the
next part of the tree.

-Tom



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