In shogi, Center Vanguard Pawn (5çÂÂä½ÂÃ¥ÂÂã go-suji kuraidori or ä¸Â央ä½ÂÃ¥ÂÂã chà «à  kuraidori) is a Static Rook opening used against a Ranging Rook opponent.
The term vanguard pawn (ä½ÂÃ¥ÂÂã 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.