While this is something I would expect from a small random company, ChessBase is pretty big in the chess world. For them to promote this "new" engine on their

While this is something I would expect from a small random company, ChessBase is pretty big in the chess world. For them to promote this "new" engine on their shop[0] feels wrong, I would expect them to meet certain quality threshold. Lichess does mention this in the bottom of the post, which has the same feeling: > Everyone is permitted and encouraged to modify and improve code from Stockfish/Leela while giving credit; that is the intent of open-source software. Everyone is allowed to copy Stockfish/Leela and sell them, provided the terms of the Stockfish/Leela license are met. But don’t pretend that the product being sold is something it isn’t. [0] https://shop.chessbase.com/en/ https://shop.chessbase.com/en/