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Extended Position Description
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<p>Extended Position Description (EPD) is a standard for describing <a href="/facts/Chess_games/47ykvkHF">chess games</a> and chess positions and an extended set of structured attribute values using the <a href="/facts/ASCII/vGUI33Qu">ASCII</a> character set. EPD was developed by John Stanback and Steven J. Edwards. Its first implementation is in Stanback's chessplaying program Zarkov. It extends the <a href="/facts/Forsyth%E2%80%93Edwards_Notation/tF7fGcSg">Forsyth–Edwards Notation</a> (FEN) except for the halfmove clock and full move number which are not mandatory, but implemented as <i>operations</i> hmvc and fmvn. It is intended for data and command interchange among chessplaying computer programs. It is also intended to represent portable opening library repositories. </p>