Pawn storm

A pawn storm is a chess tactic in which several pawns are moved in rapid succession toward the opponent's defenses.A pawn storm usually involves adjacent pawns on one side of the board—the queenside (a, b, and c files) or the kingside (f, g, and h files). The diagram at right is taken from a game in which Tigran Petrosian was playing the black pieces against Bobby Fischer. Over the next fourteen moves, Petrosian storms his a and b pawns down the a and b files, forcing Fischer to resign.
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