Editing Chess notation (section)

===Notation systems for computers===
The following are commonly used for chess-related computer systems (in addition to Coordinate and Smith notation, which are described above):
*'''[[Portable Game Notation]]''' (PGN). This is a text-based file format in which chess moves are recorded with standard English algebraic notation with a small amount of markup to record the players and circumstances of the game. Most chess software is configured to process PGN files.<ref name="InternetChessClubPGNSpec">{{cite web
 |title       = ICC Help: PGN spec
 |url         = http://www.chessclub.com/help/PGN-spec
 |author      = Members of the Internet newsgroup rec.games.chess
 |editor      = Edwards, S.J.
 |publisher   = The Internet Chess Club
 |url-status     = live
 |archive-url  = https://web.archive.org/web/20040807112541/http://www.chessclub.com/help/PGN-spec
 |archive-date = 2004-08-07
}}</ref>
*'''Steno-Chess'''. This is another format suitable for computer processing. It sacrifices the ability to play through games (by a human) for conciseness, which minimises the number of characters required to store a game.<ref>{{cite web|url=http://www.chessvariants.com/problems.dir/steno-chess.html|title=Steno-Chess|first=Éric|last=Angelini|website=www.chessvariants.com|access-date=4 May 2018|url-status=live|archive-url=https://web.archive.org/web/20180110114830/http://www.chessvariants.com/problems.dir/steno-chess.html|archive-date=10 January 2018}}</ref> 
*'''[[Forsyth–Edwards Notation]]''' (FEN).  A single line format which gives the current positions of pieces on a board, to enable generation of a board in something other than the initial array of pieces.  It also contains other information such as castling rights, move number, and color on move.  It is incorporated into the PGN standard as a Tag Pair in conjunction with the SetUp tag.
*'''[[Extended Position Description]]''' (EPD). Another format which gives the current positions of a board, with an extended set of structured attribute values using the ASCII character set. It is intended for data and command interchange among chess playing programs. It is also intended for the representation of portable opening library repositories.<ref>{{cite web |url=http://www.thechessdrum.net/PGN_Reference.txt |title=Archived copy |access-date=2007-06-25 |url-status=live |archive-url=https://web.archive.org/web/20070822185456/http://www.thechessdrum.net/PGN_Reference.txt |archive-date=2007-08-22 }}</ref> It is better than FEN for certain [[chess variant]]s, such as [[Chess960]].