A backward pawn is a pawn in chess that is behind its neighboring pawns and cannot advance without being captured. This situation often arises when a pawn is unable to move forward due to the presence of opposing pieces. Backward pawns can become weaknesses in a player's position, as they are often targets for attack. In many cases, backward pawns are located on open files, making them vulnerable to enemy rooks or queens. Players must be cautious when managing backward pawns, as they can hinder overall pawn structure and limit mobility. Properly defending or advancing these pawns is crucial for maintaining a strong position in the game.