Historical notesThe BD is a `combination chess piece', used by Ralph Betza in his Chess with Different Armies.
MovementThe BD has the combined movement of the bishop and the dabbabah, i.e., it can move an arbitrary number of unobstructed squares diagonally, or it can jump exactly two squares horizontally or vertically, where the square passed by may be empty or occupied.
Movement diagramThe white circles mark the bishops-wise movement, the green circles those to which the BD can jump.
This is an item in the Piececlopedia: an overview of different (fairy) chess pieces.
Written by Hans Bodlaender.
WWW page created: February 19, 2001.