Is there a chess engine for the chess variant Duck Chess? If not, is there a known plan of development of such an engine?

4 Answers 4


Edit on 18.01.2023:

Fairy-Stockfish released the duck-chess variant. You can reach it from their github.


I also investigated this topic and I created an experimental engine of my own: https://github.com/OndrejKincl/DuckChess.jl

From this experience, I would say it will not be very difficult to prune possible duck moves but main obstacle is that there is currently not much theory or data to test against.


AI on pychess.org

pychess.org added Duck Chess as a variant on 2022-12-26, and also included an AI. You can play against it by choosing PLAY WITH AI on the main page, then selecting the DUCK variant.

Duck Chess

  • Do you know which engine it uses? or is it just a simple AI?
    – Minot
    Dec 30, 2022 at 17:36
  • @Minot No clue, just saw it on IM Rosens stream yesterday and then remembered this question.
    – MaxD
    Dec 30, 2022 at 17:39
  • 1
    It is Fairy-Stockfish, or more precisely exactly using the branch the accepted answer is pointing to as well. Dec 30, 2022 at 17:48

On this link you can find developpers programming a Duck Chess engine, available here. This engine is named Quack.

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