Center Vanguard Pawn

In shogi, Center Vanguard Pawn (５筋位取り "go-suji kuraidori" or 中央位取り "chūō kuraidori") is a Static Rook opening used against a Ranging Rook opponent.
The term vanguard pawn (位取り "kuraidori") refers to a positioning of a pawn advanced to the middle rank supported by generals as a phalanx-like attacking formation.
This vanguard pawn is positioned up to the middle rank on the central (fifth) file.