The Chess Variant Pages




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.

Piececlopedia: Edgehog

Historical notes

The Edgehog was invented in 1966 by John Driver. The name was come up with first, and then the piece was invented to fit. Actually, John Driver invented two types of Edgehog, one more limited than the other; I will refer to them as regular and limited Edgehogs.

A chess variant featuring the Edgehog has also been invented: Edgehog Chess.

Movement: Regular Edgehog

The regular Edgehog is a limited Queen. It moves an arbitrary number of squares in a horizontal, vertical, or diagonal direction, but may not jump over occupied squares, and must either begin or end on an edge square.

Regular Edgehogs take in the same way as they move without taking.

Movement diagram: Regular Edgehog









Note that a regular Edgehog on an edge square may move just like a Queen.

Movement: Limited Edgehog

The limited Edgehog is also a limited Queen. It moves an arbitrary number of squares in a horizontal, vertical, or diagonal direction, but may not jump over occupied squares, and if it begins the move on an edge square, must end the move on a non-edge square, and if it begins the move on a non-edge square, must end the move on an edge square.

Limited Edgehogs take in the same way as they move without taking.

Movement diagram: Limited Edgehog









A limited Edgehog on a non-edge square would move just like a regular Edgehog in the previous diagram.


This is an item in the Piececlopedia: an overview of different (fairy) chess pieces.
Written by Peter Aronson
WWW page created: August 30th, 2001.