In shogi, Sleeve Rook (袖飛車 sodebisha, also translated as Right Third File Rook, Sideways Rook or Sidestepped Rook) is a Static Rook opening in which the rook is moved to the third file if played by Black or the seventh file if played by White.
The Sleeve Rook opening is one of the oldest shogi openings appearing around the same time as the Black's Static Rook vs White's Traditional Ranging Rook type of openings and the Wrong Diagonal Bishop (thus predating other old openings such as Fortress, etc).
[1] The adjacent diagram shows a game from 1614 between Sansa Hon'inbō (Black) and Sōkei Ōhashi I [ja] (White), the first Meijin.
Hon'inbō is playing a Sleeve Rook position against Ōhashi's Static Rook.
[2] This shogi-related article is a stub.