Check out Chess with Different Armies, our featured variant for July, 2024.

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: Mushroom

Historical notes

The mushroom was invented by Ralph Betza in 1996. The original publication of Betza on the Mushroom piece can be found on this website. The code, in Betza's piece notation is: fbNfsLbF.


A mushroom can jump either

Mushrooms take in the same way as they move without taking.

Movement diagram


The Mushroom cannot inflict checkmate on a rectangular board with only assistance of its own King, and is thus a minor piece. A pair of Mushrooms can force checkmate on a bare King. Try it!

This is an item in the Piececlopedia: an overview of different (fairy) chess pieces.
Written by Hans Bodlaender.
WWW page created: February 9, 2001.