The Brigadier moves and captures like a Queen but can also capture an enemy if there is another piece (of either side) in between, and any interim squares are empty. Thus to capture it leaps over the intervening piece and lands on the enemy piece, like a cannonball (but it cannot jump without capturing). Note that the cannon movement is also performed on the diagonals. Otherwise, rules are the same as in standard chess, except for the possibility of pawn promotion to Brigadier. The Brigadier's value is Queen + light piece (Knight or Bishop).
The cannon movement derives from the Cannon in Chinese Chess (Xiangqi). However, in this game the cannon movement is also performed on the diagonals. The board type was conceived by Gustav III of Sweden (1746-92) for his own chess variant Gustav III's Chess, which has also been implemented in Zillions. The Gustavian board makes it possible to place additional pieces on the board without substantially increasing the board size. It also brings the advantage that the Knight and Bishop remain equal in value. Brigadier Chess can also be played with Kwaggas instead of knights. Brigadier Chess was invented by Mats Winther, August 2006. Brigadier Chess can also be played by email at http://play.chessvariants.org.
The Brigadier moves and captures like a queen, but can also jump
over the bishop on e5 and
capture the bishop on e8.