🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPortuguêsTürkçeРусскийفارسی한국어中文日本語EntityQ33041· pop 17· linked from 5 articlesThe Hardest Logic Puzzle Everlogic puzzle by George Boolos and Raymond SmullyanAvailable in 17 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoArmenianConnectionsGermanEntityRussianEntityCategoriesGames and sports introduced in 1996Logic puzzles