王车易位分短长
[pgn]
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ChessCat "CHESSCAT 1.0"]
[FEN "r3k2r/ppp2ppp/3p4/4p3/4P3/3P4/PPP2PPP/R3K2R w KQkq - 0 1"]
[PlyCount "2"]
[Setup "1"]

1. O-O ( 1. O-O-O O-O-O ) 1... O-O *

[/pgn]
在五种情况下不能王车易位(略)