Seventh rank
The seventh rank is the rank where the opponent's pawns usually start, so a rook placed there attacks those pawns from the side and keeps the enemy king confined to its back rank.
Also called: rook on the seventh
For White the seventh rank is the line running a7 to h7; for Black it is the second rank. Most of the opponent's pawns begin the game on that line, and in many positions they are still there when the rooks come out. A rook that lands on the seventh therefore hits several pawns at once along the rank, and those pawns cannot easily defend each other against a rook.
The rook there also cuts off the enemy king. If the king is stuck on the back rank, the rook keeps it from stepping forward, and a second rook or a queen may produce mate. Even when no mate appears, the pressure ties the opponent's pieces to passive defense.
To get a rook to the seventh, first win control of an open or half-open file, then enter on the rank when the entry square is not covered. Two rooks on the seventh can be enough to force perpetual check or win material by themselves. To prevent it, challenge the file before the invasion or keep a rook ready to meet the intruder, and give your king luft so a rook on the seventh carries no mating threat.
Do not rush a rook to the seventh if it can be trapped or driven away, for example by a bishop or a pawn. Check that it has a safe route out before you go in.
It sits close to Active rook. An active rook controls open lines, attacks enemy pawns or the king from behind or the side, and cannot easily be attacked, which makes it far stronger than a rook that merely sits and defends.
Where "Seventh rank" fits your own play is easier to judge with a coach reading your games; the first lesson is a paid one-on-one review that ends in a written plan.
Related terms
The rook moves any number of squares along its rank or file, provided the path is clear, and it takes part in castling alongside the king.
An open file is a vertical column of the board with no pawns of either color on it, which gives rooks and queens a clear path to invade the opponent's position.
A half-open file is a file on which one side has no pawn while the opponent still does, giving the side without a pawn a line along which to attack the enemy pawn.
An active rook controls open lines, attacks enemy pawns or the king from behind or the side, and cannot easily be attacked, which makes it far stronger than a rook that merely sits and defends.
A rook endgame is an ending in which each side has a rook and some pawns and no other pieces, and it is the most common type of endgame, so its main ideas are worth learning early.
A rook lift is a maneuver in which a rook is raised from its back rank to the third, fourth or fifth rank, usually to swing across the board toward the opponent's king or a target on the other wing.
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