Home›Browse›Einstein-probleem🌐NederlandsEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsРусскийالعربية中文日本語EntityQ18204561· pop 13· linked from 184 articlesEinstein-probleemSign in to saveproblem in geometryWikidata factsInstance ofmathematical problemShow 1 more factfacet ofaperiodic tilingvia Wikidata · CC0Available in 14 languagesEspañolFrançaisDeutsch日本語РусскийPortuguêsItalianoBahasa IndonesiaCatalanHebrewNederlandsPolskiUkrainianvia Wikidata sitelinks · CC0