Projekt Stockfish, ktor\u00fd je distribuovan\u00fd pod licenciou GPLv3, podal \u017ealobu na spolo\u010dnos\u0165 ChessBase a od\u0148al jej licenciu GPL na pou\u017e\u00edvanie svojho k\u00f3du. Stockfish je najsilnej\u0161\u00ed zo \u0161achov\u00fdch enginov, ktor\u00e9 sa pou\u017e\u00edvaj\u00fa na \u0161achov\u00fdch slu\u017eb\u00e1ch lichess.org a chess.com. \u017daloba bola podan\u00e1 v s\u00favislosti so za\u010dlenen\u00edm k\u00f3du Stockfish do propriet\u00e1rneho produktu bez spr\u00edstupnenia zdrojov\u00fdch k\u00f3dov derivovanej pr\u00e1ce. <\/p>\n
Spolo\u010dnos\u0165 ChessBase je zn\u00e1ma svoj\u00edm \u0161achov\u00fdm programom Fritz od 90. rokov. V roku 2019 uviedla engin Fat Fritz, zalo\u017een\u00fd na neur\u00f3novej sieti otvoren\u00e9ho enginu Leela Chess Zero, ktor\u00fd bol p\u00f4vodne zalo\u017een\u00fd na pr\u00e1cach projektu AlphaZero, otvoren\u00e9ho Google. Nebolo to poru\u0161en\u00edm \u017eiadneho legislat\u00edvneho predpisu, hoci v\u00fdvoj\u00e1ri Leely boli nespokojn\u00ed s t\u00fdm, \u017ee ChessBase prezentovala Fat Fritz ako samostatn\u00fd produkt, neprizn\u00e1vaj\u00fac z\u00e1sluhy t\u00edmov AlphaZero a LeelaZero. <\/p>\n
V roku 2020 spolo\u010dnos\u0165 ChessBase vydala produkt Fat Fritz 2.0, zalo\u017een\u00fd na eng\u00edne Stockfish 12, ktor\u00fd m\u00e1 vlastn\u00fa architekt\u00faru neur\u00f3novej siete NNUE (ƎU\u0418\u0418, Efficiently Updatable Neural Networks). T\u00edm Stockfish s pomocou pr\u00e1vnikov dok\u00e1zal dosiahnu\u0165 stiahnutie programu Fat Fritz 2.0 z maloobchodn\u00fdch siet\u00ed DVD v Nemecku, ale nespokojn\u00ed s v\u00fdsledkom vyhl\u00e1sili o stiahnut\u00ed licencie GPL na Stockfish od ChessBase a podali \u017ealobu. <\/p>\n
Toto nie je prv\u00e1 sez\u00f3na dr\u00e1my okolo k\u00f3du Stockfish, ktor\u00fd komer\u010dn\u00e9 enginy po\u017ei\u010dali s ignorovan\u00edm GPL. Napr\u00edklad predt\u00fdm sa stal incident s \u00fanikom zdrojov\u00fdch textov propriet\u00e1rneho enginu Houdini 6, na ktor\u00fdch sa uk\u00e1zalo, \u017ee je zalo\u017een\u00fd na k\u00f3de Stockfish. Houdini 5 sa z\u00fa\u010dastnil s\u00fa\u0165a\u017ee TCEC a dostal sa do superfin\u00e1le deviatej sez\u00f3ny, ale nakoniec prehral so Stockfishom. V roku 2017 \u010fal\u0161ia verzia Houdini 6 dok\u00e1zala porazi\u0165 Komodo v superfin\u00e1le TCEC desiatej sez\u00f3ny. \u00danikovan\u00e9 zdrojov\u00e9 k\u00f3dy z roku 2020 odhalili tento ne\u010destn\u00fd podvod, ktor\u00fd poru\u0161uje jeden z k\u013e\u00fa\u010dov\u00fdch kamenov FOSS — GPL. <\/p>\n
Pripom\u00edname, \u017ee licencia GPL predpoklad\u00e1 mo\u017enos\u0165 odvolania licencie u poru\u0161ovate\u013ea a zru\u0161enia v\u0161etk\u00fdch pr\u00e1v licenciata, ktor\u00e9 mu t\u00e1to licencia poskytla. V s\u00falade s pravidlami o ukon\u010den\u00ed licencie v GPLv3, ak sa poru\u0161enia zistili prv\u00fdkr\u00e1t a odstr\u00e1nili sa do 30 dn\u00ed od ozn\u00e1menia, pr\u00e1va na licenciu sa obnovuj\u00fa a licencia sa \u00faplne neodvol\u00e1va (zmluva zost\u00e1va nedotknut\u00e1). Pr\u00e1va sa vracaj\u00fa okam\u017eite aj v pr\u00edpade odstr\u00e1nenia poru\u0161en\u00ed, ak dr\u017eite\u013e pr\u00e1v neinformoval o poru\u0161en\u00ed do 60 dn\u00ed. Ak sa lehota prekro\u010d\u00ed, poru\u0161enie licencie je mo\u017en\u00e9 ch\u00e1pa\u0165 ako poru\u0161enie zmluvy, za ktor\u00e9 je mo\u017en\u00e9 u s\u00fadu po\u017eadova\u0165 finan\u010dn\u00e9 n\u00e1hrady. \u041f\u0440\u043e\u0435\u043a\u0442 Stockfish, \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u043c\u044b\u0439 \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 GPLv3, \u043f\u043e\u0434\u0430\u043b \u0432 \u0441\u0443\u0434 \u043d\u0430 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044e ChessBase, \u043e\u0442\u043e\u0437\u0432\u0430\u0432 \u0443 \u0442\u043e\u0439 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u044e GPL \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430. Stockfish \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0441\u043e\u0431\u043e\u0439 \u0441\u0438\u043b\u044c\u043d\u0435\u0439\u0448\u0438\u0439 \u0438\u0437 \u0448\u0430\u0445\u043c\u0430\u0442\u043d\u044b\u0445 \u0434\u0432\u0438\u0436\u043a\u043e\u0432, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0445\u0441\u044f \u043d\u0430 \u0448\u0430\u0445\u043c\u0430\u0442\u043d\u044b\u0445 \u0441\u0435\u0440\u0432\u0438\u0441\u0430\u0445 lichess.org \u0438 chess.com. \u0418\u0441\u043a \u043f\u043e\u0434\u0430\u043d \u0432 \u0441\u0432\u044f\u0437\u0438 \u0441 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c \u043a\u043e\u0434\u0430 Stockfish \u0432 \u043f\u0440\u043e\u043f\u0440\u0438\u0435\u0442\u0430\u0440\u043d\u044b\u0439 \u043f\u0440\u043e\u0434\u0443\u043a\u0442 \u0431\u0435\u0437 \u043e\u0442\u043a\u0440\u044b\u0442\u0438\u044f \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0445 \u0442\u0435\u043a\u0441\u0442\u043e\u0432 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b. \u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f ChessBase, \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u0430 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-100802","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Projekt Stockfish za\u017ealoval spolo\u010dnos\u0165 ChessBase a odvolal licenciu GPL | ProHoster","description":"Projekt Stockfish, \u0161\u00edren\u00fd pod licenciou GPLv3, za\u017ealoval spolo\u010dnos\u0165 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Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"