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Subject: Re: Question for Bob: Crafty opening book

Author: Edward Screven

Date: 01:32:20 06/09/98

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On June 08, 1998 at 21:02:36, Robert Hyatt wrote:

>>what i was proposing is that the output would be
>>
>>    [Result-Summary "1/1/0"]
>>    1. e4 e5 *
>>
>>    [Result-Summary "1/0/1"]
>>    1. e4 d6 *
>>
>>  - edward
>
>
>aha... you are thinking of producing one game for *each* alternative
>in the book?  I'm looking at doing something much shorter, as I did in
>Cray Blitz...   your idea will certainly work, but it will produce a
>really large pgn file I'm afraid...  the CB format was more of a "tree"
>type format without having 1. e4 in the file thousands of times...

if you don't repeat e4, is it really going to "remain standard
PGN", as you originally described?  if not, then why worry about
PGN compatibility at all?

i suppose you could use deeply nested recusive variations.  is
that your intent?

  - edward

ps: "really large" depends on your perspective.  much larger
than a compact non-PGN tree representation, definitely.  but also
certainly smaller than the original pgn file.  at a minimum
all trailing moves not played three times would be stripped,
and a significant number of games would be merged.






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