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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.
The Crab is a kind of `restricted knight', introduced by Ralph Betza in 1996. The name
clear from the diagram: the squares the crab can go to are like the pincers of a crab.
The crab moves like a knight, jumping across squares, but only in some directions: it can go either two squares
vertically forwards and one square horizontally, or one square vertically backwards and two squares horizontally.
The crab can jump to all the squares marked with a circle.
This is an item in the Piececlopedia: an overview of
different (fairy) chess pieces.
Written by Hans Bodlaender.
WWW page created: March 20, 2001.