Embassy chess

Embassy chess is a chess variant created in 2005 by Kevin Hill. It borrows the opening setup from Grand Chess by Christian Freeling and adapts it to the 10×8 board. Embassy chess is a non-commercial Capablanca random chess variant that is played on a 10×8 board with two additional pawns per side and two fairy chess pieces: the "marshall" and the "cardinal".
The castling in this chess variant is done by king moving 3 spaces in rook direction; see diagram at right. All other rules, such as "en passant", are the same as in chess.
Computer implementation.
There are multiple chess engines, that may play Embassy chess: