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The Piececlopedia is intended as a scholarly reference concerning the history and naming conventions of pieces used in Chess variants. But it is not a set of standards concerning what you must call pieces in newly invented games.

## Historical notes

The Advancer was invented by David Howe for the game Rococo, a game he created with Peter Aronson that appeared on chessvariants.com in May, 2002. The Advancer was inspired by the Withdrawer, a piece from Robert Abott's 1962 classic Ultima. As with the Withdrawer, the Advancer's method of capturing is taken from the Malgasy game of Fanorona.

The Advancer is also used in Advancer Chess.

In Rococo, the Advancer is represented by a ram. I have used the ram for the diagrams below.

## Movement

The Advancer's method of movement and capture are different from each other.

The Advancer moves as a chess Queen - that is, the Advancer can move any number of squares in any direction, orthogonally or diagonally, as long as all the squares it passes over are unoccupied by other pieces. The Advancer can never move to a square occupied by a piece of either side.

To capture, the Advancer must move directly towards an opposing piece, and end its move on the square adjacent to that piece. Again, the Advancer can cross any number of unoccupied squares in any direction to make its capture. Note that if the Advancer moves directly towards a piece and lands adjacent to it, capturing that piece is not optional - the piece must be removed.

## Movement Diagrams

In the diagram on the left, the Advancer - represented by a ram - can move to any of the squares marked with a red circle.

In the diagram on the right, the White Advancer can capture the Black Queen by moving along the path of red circles and ending its move on the large red circle on c5. If it stops on one of the smaller red circles on d6 or e7, the Advancer will not capture the Queen. Note that if the Advancer does capture the Queen, it will not capture either Black Knight because it did not move directly towards them.

The Black Advancer can capture the White Pawn by following the path of circles to the large red circle on f2. In doing so, it will not, however, capture the White Bishop - the Advancer only captures the first piece it reaches. The Advancer can not capture the White Rook, since it is already adjacent to it, and therefore can not move towards it.

You can also see an animated demonstration of the Rococo pieces, including the Advancer, by clicking here.

## Remarks

The Advancer is a powerful piece, almost as strong as a chess Queen. It can attack pieces from far away, and since it does not capture by displacement, threatened pieces can not be protected by direct defense. Each piece potentially has eight locations where it is vulnerable to Advancer attack. The Advancer's biggest weakness is that it can not capture pieces on adjacent squares; if you have a piece threatened by an Advancer, often your best defense is to move it next to the Advancer.

Note that it is not possible for an Advancer to attack an another Advancer without being attacked back, unless that Advancer is pinned or immobilized.