Copyleft ensures that Free Software remains Free. Stockfish filed a lawsuit when ChessBase distributed parts of #Stockfish work under a proprietary license, violating #GNU GPL obligations.
Checkmate! #Copyleft won. Stockfish secured numerous concessions from ChessBase to respect the GPL.
https://fsfe.org/news/2022/news-20221212-01.html
Checkmate! #Copyleft won. Stockfish secured numerous concessions from ChessBase to respect the GPL.
https://fsfe.org/news/2022/news-20221212-01.html
Copyleft-licensed chess engine wins legal case against proprietary counterpart - FSFE
Copyleft ensures that Free Software remains Free. Stockfish filed a lawsuit when ChessBase distributed parts of Stockfish work under a proprietary license,...FSFE - Free Software Foundation Europe
Nicco Kunzmann
in reply to Free Software Foundation Europe • • •I understand that the current modifications despite including GPL code will not be published to the buyers.
Why is that?
Is it because a buyer would need to make the case? Is it because they had a resolution this way?
Free Software Foundation Europe
in reply to Nicco Kunzmann • • •If it is violating the GPL, then it is technically not software that was developed legally, and therefore does not have permission from Stockfish to be 1) developed using their code in the first place, and 2) released/published.