In chess, "doubled pawns" refer to two pawns of the same color that occupy the same file. This situation typically arises when one pawn captures an opponent's piece and moves forward, landing on the same column as another pawn. Doubled pawns can weaken a player's position because they cannot support each other and may become targets for the opponent. Doubled pawns can also affect pawn structure and mobility. While they may provide some advantages, such as controlling key squares, they often lead to a less flexible position. Players must carefully consider the implications of having doubled pawns in their strategy, as seen in many famous games involving chess masters.