English

Noun

fairy chess ‎(uncountable)

1. A class of board game very similar to chess but with variant rules and pieces
   • 2005, Gary Westfahl, The Greenwood encyclopedia of science fiction and fantasy: themes, works, and wonders, Volume 1, page 113

     Chess with alternative rules is called fairy chess; a notable science fiction example is the 3-D game played in episodes of Star Trek.