Home›1966 introductions›moving sofa problem🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsTürkçeРусскийالعربيةفارسی한국어中文日本語EntityQ2635526· pop 20· linked from 14 articlesmoving sofa problemAlso known as sofa problemmathematical problem about moving the largest possible shape around a 90° cornerWikidata factsShow 1 more factCommons categoryMoving sofa problemSources (2)en.wikipedia.orgwikidata.orgvia Wikidata · CC0Available in 19 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةCatalanConnectionsQ118398Entitylist of unsolved problems in mathematicsEntityCategories1966 introductionsCouchesDiscrete geometryRecreational mathematicsUnsolved problems in geometry