In July of 2021 we reported that authorized proceedings had begun between the builders of Stockfish, the world’s strongest chess engine, and Chessbase GmbH, builders of varied in style chess software program. After greater than a 12 months of wrangling, that lawsuit has now come to an finish with the events agreeing to a settlement.
Per the settlement, Chessbase concedes they used Stockfish in violation of its license in two of their merchandise, Fat Fritz 2 and Houdini 6. They had beforehand asserted for years that Houdini was an unique creation. They can be prevented from distributing Stockfish in modified or unmodified type for a interval of 1 12 months, excluding re-downloads of already bought merchandise. This would appear to imply that their massive holiday-season product ChessBase 17, which can be launched in on November twenty third, is not going to come packaged with the strongest chess engine obtainable, nor will it comprise any of the Stockfish-derived engines that ChessBase has bought prior to now.
Furthermore, ChessBase agrees that any future public comparisons they make between their engines and Stockfish can be truthful and use the strongest model of Stockfish. Chessbase had beforehand revealed comparisons between Fat Fritz 2, utilizing the most recent model of Stockfish, in opposition to an older model of Stockfish to attempt to reveal that Fat Fritz was stronger.
Chessbase may even be required to submit notices on all internet pages related to Fat Fritz 2 or Houdini 6 making clear that these merchandise come from Stockfish. The YouTube interview the place Fat Fritz 2 “head coach” Albert Silver talks about creating Fat Fritz “almost from scratch” now awkwardly incorporates a discover mentioning the usage of Stockfish and its license with the feedback part closed. A ChessBase weblog selling that video has now apparently been deleted.
The settlement additionally contains the need to rent a Free Software Compliance Officer to guarantee that additional violations don’t happen. Critically, the settlement contains no monetary compensation for the Stockfish crew, not even authorized charges. There are fines for violating the settlement, however they might be paid to the Free Software Foundation Europe and never the Stockfish crew.