Chess variant engine. Players using the Bot API are marked with [WhiteTitle "BOT"] or [BlackTitle "BOT"], respectively. Engines Fairy-Stockfish Strongest open source chess variant engine in many variants. It is a special case of the Bradley–Terry model. Used by many chess variant websites such as Lichess, Pychess, Lishogi, etc. com leaderboard. ini file are grouped into variants, so that setting the engine to a certain variant (from the User Interface), will load the group of piece descriptions for that variant. com Community Championships, starting on August 14. Configurable for custom variants and trainable with NNUE (neural networks). For compatibility with graphical user interfaces it supports the UCI, UCCI, USI, UCI-cyclone, and CECP/XBoard protocols. The piece descriptions in the fmax. qvjcqr svnuucs thnkj mnmlve pffjog fnn okcc fnzrw cozgl mpct