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==Description==
===Nomenclature===
With the exception of the [[Knight (chess)|knight]], each piece is abbreviated as the first letter of its name: K for [[King (chess)|king]], Q for [[Queen (chess)|queen]], R for [[Rook (chess)|rook]], B for [[Bishop (chess)|bishop]], and P for [[Pawn (chess)|pawn]]. As ''knight'' begins with the same letter as ''king'', it is abbreviated as either N, Kt or
[[Image:English Descriptive Chess Notation.svg|thumb|360px|Names of the squares in English descriptive notation]]
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Typically, the full designation for a piece or a file is shortened to just the last part (indicating type of piece) whenever this does not produce ambiguity. For example, the move KP–K4 would always be written '''P–K4''' since only one pawn can move to K4 without capturing; the move Q–QB4 would be written '''Q–B4''' whenever Q–KB4 is not a legal move. A pawn capturing a pawn may be shown as '''P×P''' if it is the only one possible, or as '''BP×P''' if only one of the player's bishop's pawns can capture a pawn, or as '''QBP×P''', '''P×RP(R6)''' or '''P×QBP''' or other such variations.
Disambiguation of pieces using notations like QBP and KR becomes awkward once the pieces have left their starting positions (or for pawns, left their starting files), and is impossible for pieces created by promotion (such as a second queen). So as an alternative, moves may also be disambiguated by giving the starting square or the square of a capture, delimited by parentheses or a slash, e.g. '''B×N/QB6''' or '''R(QR3)–Q3'''. Sometimes only the rank or file is indicated, e.g. '''R(6)
When listing the moves of a game, first the move number is written, then the move by White followed by the move by Black. If there is no appropriate move by White to use (e.g. if the moves are interrupted by commentary) then an ellipsis ("…") is used in its place.
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==Comparison to algebraic notation==
[[File:Score sheets - DPLA - 0a590328ede519d75918cbcfe22acc2e (page 9).jpg|thumb|Game in descriptive notation from 1931. This player uses "KT" for knight, and "sq" for the first rank.]]
While descriptive notation is largely regarded as obsolete, it does have a few minor advantages over algebraic notation. By identifying each square with reference to the player on move, descriptive notation better reflects the symmetry of the game's starting position (e.g. "both players opened with P–QB4 and planned to play B–KN2 as soon as possible"). Generic descriptions which refer to all four sectors of the board are also possible, e.g. "all four bishops were developed on N2." Maxims such as "a pawn on the seventh is worth two on the fifth" make sense from both players' perspectives. Because the type of each captured piece is specified, it is easier to visualize the material balance at any point in the game when skimming over a {{chessgloss|game score}}.
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