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Subject: Re: A question about underpromotion danger

Author: Bruce Moreland

Date: 11:09:18 08/04/99

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On August 04, 1999 at 12:16:52, Dann Corbit wrote:

>As a 'for instance':
>
>Suppose that on promotion, a program sees that it can promote to a knight
>instead of a queen, and get a king fork, taking a bishop, followed by a queen
>fork, taking the other bishop.  In such a case, it might evaluate:
>   -pawn+knight+bishop+bishop+two_bishop_bonus+(minor positional goo)
>verses
>   -pawn+queen
>and get something a fraction more valuable than a queen.  But down the road I
>would rather have the queen than a knight and remove the two bishops.
>
>How do programs deal with this?

You are really saying you'd rather have a queen against two bishops than be a
knight up, right?

bruce

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