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Piececlopedia: Crab

Historical notes

The Crab is a kind of `restricted knight', introduced by Ralph Betza in 1996. The name is 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.

Movement diagram

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.