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Subject: Re: Interesting mate test for hashing (with EPD)

Author: David Eppstein

Date: 23:35:47 09/10/99

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On September 10, 1999 at 09:44:57, Robert Hyatt wrote:

>On September 10, 1999 at 02:27:21, Richard A. Fowell (fowell@netcom.com) wrote:
>
>>As Dan points out later, this is "White being crushed" and the EPD is:
>>8/p7/P5p1/7p/7P/4kpK1/8/8 w - -
>>(I put the "with EPD" in the hopes to save folks the trouble Dan and I
>> went through).
>>
>
>what kind of trouble?  I posted both epd and an ascii board in my original
>post...
>
>aha.. I bet you mean the lack of /8/, etc? The _original_ Forsythe notation
>did not require that each rank be padded to 8 squares.  That happened later
>and (IMHO) is a silly limitation in FEN, because if each rank needs 8 squares,
>then the / characters are redundant.  the original Forsythe notation was more
>compact which was why it was developed in the first place.

It may be a silly limitation, but some software (e.g. Exachess) won't parse it
without 8 things on each line, so users of that software (e.g. me) can't view
the position without carefully tweaking the EPD by hand.  Wouldn't it be easy
enough to make the program you copied this from produce correct EPD?



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