In chess, doubled pawns are two pawns of the same player residing on the same file. They are usually considered a weakness, especially when they are also isolated. In this diagram, the pawns on the b file are doubled. The pawns on the e file are doubled and isolated. (Also see isolated pawn and backward pawn.) This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... From left, a white king, black rook and queen, white pawn, black knight, and white bishop in Staunton chess pieces. ... This page explains commonly used terms in chess in alphabetical order. ... In chess, an isolated pawn is a pawn for which there is no friendly pawn on an adjacent file. ... This page explains commonly used terms in chess in alphabetical order. ... In chess, an isolated pawn is a pawn for which there is no friendly pawn on an adjacent file. ... In chess, a backward pawn is a pawn that is behind the pawns of the same color on the adjacent files and that cannot easily be advanced. ...
Doubledpawns themselves are really more serious than this generally, but when your pawns are doubled you automatically get an extra half-open file for your rooks (or queen, but the queen can also use diagonals).
The next category of “bad” doubledpawns is the backward doubledpawn, which I define as a doubledpawn whose neighbors are at least as advanced as the front twin.
Even the normal backward doubledpawn is a more serious liability than a normal backward pawn, because its backwardness generally cannot be remedied by advance due to the obstruction of the front twin.
Pawns are differentiated by the files in which they currently stand, for example one speaks of "white's f-pawn".
The pawn is immediately (before the opposing player's next move) replaced by a queen, rook, bishop, or knight of the same color.
Doubledpawns are substantially weaker than pawns which are side by side, because they can't defend each other, and the front pawn blocks the advance of the back one.