Author: Robert Hyatt
Date: 06:05:26 05/25/98
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On May 25, 1998 at 08:43:33, Andreas Stabel wrote: >On May 23, 1998 at 16:11:07, Robert Hyatt wrote: > > >> >>talked with Tim last night, in fact... I converted to a more readable >>PV format several months ago, producing analysis that fits the PGN >>standard a little better.. and the "23. ... h3 etc" format that is >>correct for PGN is confusing winboard. This can be turned off with >>"display nomovenum" or by leaving off the "show thinking"... >> >>And Tim said 3.6.8beta will have better move parsing... soon... > >Just to clear up a misunderstanding, the correct PGN format for giving >the >move number of a black move is 23... h3, although the above should be >accepted >as an import format. actualy, it should be 23. ... h3. If you read the pgn standard, the move number should be followed by a period, which should be followed by a space. then, the "..." is used to indicate a missing white move. ie this is the exact move format needed by winboard/xboard, which can cause some confusion. > >I quote here the relevant text from the standard: >8.2.2.2: Export format move number indications > >There are two export format move number indication formats, one for use >appearing immediately before a white move element and one for use >appearing >immediately before a black move element. A white move number indication >is >formed from the integer giving the fullmove number with a single period >character appended. *** A black move number indication is formed from >the >integer giving the fullmove number with three period characters >appended. *** I believe that this is simply ambiguously written. IE the syntax "23... e4" has not been used anywhere that I have seen. And every chess publication seems to support the usual 23. ... e4 type notation. I'll ask Steven, but even a few epd tests I have seen give the same format for solution moves (as 23. ... e4). although in this case, it's a moot question since the "..." broke older winboards (up until tim's latest fix...) one other thing... back in the discussion about "move number" it clearly gives the format 23.<space> as required. Seems like this has a hole similar to a few of the ANSI C standard, which is not always pristine. :) > >All white move elements have a preceding move number indication. A >black move >element has a preceding move number indication only in two cases: first, >if >there is intervening annotation or commentary between the black move and >the >previous white move; and second, if there is no previous white move in >the >special case where a game starts from a position where Black is the >active >player. > >There are no other cases where move number indications appear in PGN >export >format. > >Regards >Andreas Stabel
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