A variation of Chess involving a change in the form of the board, the rules of play, or the pieces used. For example, the normal rules of chess can be used but with a cylindrical or Möbius Strip connection of the edges.

**References**

Kraitchik, M. ``Fairy Chess.'' §12.2 in *Mathematical Recreations.* New York: W. W. Norton,
pp. 276-279, 1942.

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1999-05-26