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a dedicated chess computer project developed and maintained by [[Jean-Francois Romang]], followed by [[Shivkumar Shivaji]] and more recently by [[Jürgen Précour]] <ref>[http://picochess.com/overview/ Overview - PicoChess] by [[Jürgen Précour|LocutusOfPenguin]]</ref> . The computer is based on the [[Raspberry Pi]] or similar [[ARM11|ARM]] boards, the [[Stockfish]] engine, and the [[DGT Board]] and DGT clock. Further, PicoChess also targets [[x86]] based [[IBM PC|destop PCs]], to run not only Stockfish but any [[UCI]] compliant [[:Category:UCI Engines|engine]]. PicoChess is [https://en.wikipedia.org/wiki/Free_software Free software] licensed under the [[Free Software Foundation#GPL|GPLv3]], and uses [[python-chess]] by [[Niklas Fiekas]] <ref>[https://github.com/niklasf/python-chess niklasf/python-chess · GitHub]</ref> to handle chess rules, [[Opening Book|opening books]], and [[Portable Game Notation|PGN]] files <ref>[http://docs.picochess.org/en/latest/source.html#project-licence-and-philosophy Free Software — PicoChess 0.24 documentation]</ref> . The display of the digital chess clock acts as output device of a [[CLI|command line interface]].