Author: José Carlos
Date: 12:09:55 12/27/03
Go up one level in this thread
On December 27, 2003 at 14:48:11, Roger Brown wrote: >On December 27, 2003 at 14:27:18, José Carlos wrote: > >> Hi, is there any tool out there that removes duplicate games (ignoring the >>header, I'm only interested in the moves) from a big PGN? I think I recall >>someone saying that SCID can do that, but I can't find any menu option there to >>do it. >> Thanks in advance. >> >> José C. > > >Hello Jose Carlos, > >Indeed Scid removes duplicates and the larger the pgn file the better. > >(1) Create a new Scid database. It will be empty until you dump the pgn file >into it. Scid treates PGN as read only for now. Then follow the instructions >in (2) below. There several other tools out there but I love Scid... > >(2) Deleting twin games >The [File: Maintenance] menu has a command [Delete twin games...] for detecting >extra copies (twins) of games in the database. This command finds all pairs of >games that are twins and, for each pair, flags the shorter game deleted leaving >the longer game undeleted. Two games are considered to be twins if their players >(and any other tags that you can optionally specify) match exactly. > >If you specify the "same moves" option, each pair of games must have the same >actual moves up to the length of the shorter game (or up to move 60, whichever >comes first) to be twins. > >When you have deleted twins, it is a good idea to check that each game deleted >really is a copy of another game. You can do this easily if you selected the >"Set filter to all deleted games" option in the delete twins dialog box. The >filter will now contain all deleted games. You can browse through them (using >the p and n keys) with the twins checker window (available from the maintenance >menu, or the shortcut key Ctrl+Shift+T) to verify that each game is deleted >because it actually is a twin of another game. > > >(3) Export the cleaned file to pgn Tools > Export to Pgn > > >I hope this helps you. > > >Later. Thanks, it did it really fast! I must agree to love SCID too. José C.
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