Exact cover

Exact cover - disjoint family of sets, drawn from a larger collection, with the same union as the whole collection. Article “Exact cover” in English Wikipedia has 50.9 points for quality (as of July 1, 2025). The article contains 13 references and 17 sections.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that (English) language version.

In June 2025 the article “Exact cover” was edited by 2 authors in English Wikipedia and written by 2 authors in all languages.

Since the creation of article “Exact cover”, its content was written by 65 registered users of English Wikipedia and edited by 142 registered Wikipedia users in all languages.

The article is cited 26 times in English Wikipedia and cited 84 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #61169 in July 2006
• Global: #95053 in November 2005

The highest popularity rank from 2008:

• Local (English): #235459 in September 2013
• Global: #233701 in September 2013

There are 6 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	English (en) Exact cover		50.9119
2	Chinese (zh) 精确覆盖问题		33.5503
3	French (fr) Problème de la couverture exacte		28.4177
4	Dutch (nl) Exacte overdekking		20.6768
5	Portuguese (pt) Cobertura exata		15.8984
6	German (de) Problem der exakten Überdeckung		5.2361

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "Exact cover" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Exact cover		483 252
2	German (de) Problem der exakten Überdeckung		36 394
3	French (fr) Problème de la couverture exacte		25 807
4	Chinese (zh) 精确覆盖问题		22 010
5	Portuguese (pt) Cobertura exata		2 970
6	Dutch (nl) Exacte overdekking		1 849

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The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "Exact cover" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Exact cover		2 382
2	French (fr) Problème de la couverture exacte		90
3	Chinese (zh) 精确覆盖问题		68
4	German (de) Problem der exakten Überdeckung		58
5	Dutch (nl) Exacte overdekking		24
6	Portuguese (pt) Cobertura exata		23

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The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "Exact cover" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Exact cover		65
2	French (fr) Problème de la couverture exacte		41
3	German (de) Problem der exakten Überdeckung		17
4	Portuguese (pt) Cobertura exata		8
5	Chinese (zh) 精确覆盖问题		8
6	Dutch (nl) Exacte overdekking		3

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The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "Exact cover" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	English (en) Exact cover		2
2	German (de) Problem der exakten Überdeckung		0
3	French (fr) Problème de la couverture exacte		0
4	Dutch (nl) Exacte overdekking		0
5	Portuguese (pt) Cobertura exata		0
6	Chinese (zh) 精确覆盖问题		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "Exact cover" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Exact cover		26
2	French (fr) Problème de la couverture exacte		24
3	German (de) Problem der exakten Überdeckung		20
4	Portuguese (pt) Cobertura exata		5
5	Chinese (zh) 精确覆盖问题		5
6	Dutch (nl) Exacte overdekking		4

More...

#	Language	Value
de	German Problem der exakten Überdeckung
en	English Exact cover
fr	French Problème de la couverture exacte
nl	Dutch Exacte overdekking
pt	Portuguese Cobertura exata
zh	Chinese 精确覆盖问题

Best Rank

English: #235459 09.2013

Global: #233701 09.2013

Best Rank

English: #61169 07.2006

Global: #95053 11.2005

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In English Wikipedia the most popular articles on that day were: Ajit Pawar, Border 2, Sharad Pawar, Killing of Alex Pretti, Ilhan Omar, Sunetra Pawar, Todd Monken, Kristi Noem, Wonder Man (miniseries), Gregory Bovino.

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information