Fairy-Max (which ships with the XBoard package) can play variant chess. Is there any other XBoard-compatible engine that also plays variant chess (and runs on Linux or *BSD)?

  • Sorry, I don't have idea what the question is about. Can you rephrase? Do you mean if fairymax can play anything other than the standard chess?
    – SmallChess
    May 21, 2015 at 23:46
  • No, I was asking about an alternative to Fairymax.
    – fauve
    May 22, 2015 at 0:42
  • This is easy. Xboard supports every chess engine that uses its protocol. Crafty can be used on xboard.
    – SmallChess
    May 22, 2015 at 0:46
  • But I am only interested by chess variant engine. Crafty, as I know, only support standard chess. I’m wrong?
    – fauve
    May 22, 2015 at 2:40
  • 2
    fairy chess” is the standard name used by chess gamer to talk about a kind of chess variant. I use the correct words.
    – fauve
    Jul 4, 2016 at 5:45

2 Answers 2


The XBoard Alien GUI is reputedly better suited to playing chess variants than the standard XBoard is, but that's just an observation. There are many engines that play only a few variants.
     Here's a list of engines (other than Fairy-Max) that have been noted as playing a large selection of variants and working with XBoard (Linux environment being implicit):


add Fairy Stockfish to that list... a recent development

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