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Subject: Re: forward pruning for underpromotions

Author: James Robertson

Date: 17:00:07 09/20/99

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On September 20, 1999 at 19:05:56, Jeremiah Penery wrote:

>On September 20, 1999 at 16:15:46, James Robertson wrote:
>
>>My program only generates Queen and Knight promotions, as I have never seen a
>>position where a Bishop/Rook promotion was any good.... I have run across a few
>>nice Knight promotion positions, though.
>
>There are some positions where promoting to a Rook is the only winning move, as
>a Queen promotion would stalemate, and a Knight wouldn't be enough to be able to
>mate the opponent with.  Unfortunately, I don't have any examples. :(
>In any case, such positions are VERY rare.
>
>Jeremiah

I am aware of many positions like this, but I have yet to actually see one in a
game. That is what I meant by my comment.

James



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