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Subject: Re: u2600 - rook sac from Lambchop-Grok

Author: James Swafford

Date: 09:38:41 04/30/99

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On April 30, 1999 at 10:18:25, blass uri wrote:

>
>On April 29, 1999 at 20:14:55, James Swafford wrote:
>
>>On April 27, 1999 at 16:08:59, Peter Kappler wrote:
>>
>>>On April 27, 1999 at 15:35:06, Will Singleton wrote:
>>>
>>>>
>>>>Amateur doesn't find the move after 2 minutes and 9 ply, liking Be7 with +3.  I
>>>>better get busy and try out the single-reply extension.  Problem is, I use
>>>>psuedo-legal moves, so I'm not sure how to tell when I only have one reply!
>>>>
>>>>Will
>>>
>>>
>>>I have the same problem with Grok, and it's making it difficult for me to
>>>implement this extension efficiently.
>>>
>>>--Peter
>>
>>You don't have to generate legal moves for every position
>>to implement this, just nodes in which you are in check.
>
>
>You need to generate legal moves for every position to implement single-reply
>extension
>
>You do not need tp do it for every position if you do only single reply to check
>extension.
>
>Uri


You're right, if you want to argue semantics.
I've never heard of anybody extending on a single-reply
that isn't a check, but I suppose it could be done.

--
James



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