Computer Chess Club Archives




Subject: Re: What approach do you use to handle castling/en passant for repetition?

Author: Tom Kerrigan

Date: 00:25:09 02/28/00

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On February 27, 2000 at 18:00:32, Robert Hyatt wrote:

>I don't believe this can be safely overlooked, because the wrong repetition
>value is a tiny part of a much bigger problem, that of not correctly hashing
>positions...  the former may not happen often.  The latter happens thousands
>of times every search.  Often enough that it will _definitely_ affect the
>root score enough to make a difference.

I would like to see some numbers to back up your argument.


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