🌐EnglishEnglishDeutschFrançaisРусский中文日本語EntityQ3115494· pop 5· linked from 17 articlesGrötzsch graphAlso known as Mycielski–Grötzsch graphtriangle-free graph requiring four colorsWikidata factsImageGroetzsch-graph.svgSources (1)en.wikipedia.orgvia Wikidata · CC0Available in 4 languagesFrançaisРусскийUkrainianvia Wikidata sitelinks · CC0ConnectionsgirthEntitymathematicsEntityCategoriesIndividual graphs