Doubled pawns
In
chess, doubled pawns are two
pawns of the same color residing on the same file. Pawns can become doubled only when one pawn captures onto a file on which another friendly pawn resides. In the diagram, the pawns on the b file and e file are doubled. The pawns on the e file are doubled and
isolated.
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Pions doublés
doubled pawns
Doubled pawns
Two pawns of the same colour on the same file, put there by a capture. These pawns are generally considered to be weak, but they can control valuable squares and create open or half-open files.
doubled pawns
Two pawns of the same color on the same file. Generally considered a disadvantage because the pawns cannot defend each other.