Irregular chess opening

Irregular chess opening - infrequent and unorthodox chess opening. Article “Irregular chess opening” in English Wikipedia has 24.6 points for quality (as of July 1, 2025). The article contains 12 references and 8 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 2.73 points.

This article has the best quality in Polish Wikipedia. However, this article is the most popular in English version.

In June 2025 the article “Irregular chess opening” was edited by 1 authors in English Wikipedia and written by 3 authors in all languages.

Since the creation of article “Irregular chess opening”, its content was written by 71 registered users of English Wikipedia and edited by 293 registered Wikipedia users in all languages.

The article is cited 558 times in English Wikipedia and cited 2040 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #11783 in July 2016
• Global: #19001 in November 2002

The highest popularity rank from 2008:

• Local (English): #129547 in February 2023
• Global: #124172 in December 2020

There are 18 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	Polish (pl) Nieregularne otwarcie		48.9312
2	Greek (el) Ανορθόδοξο άνοιγμα		33.5805
3	Portuguese (pt) Movimentos não usuais das peças brancas		32.7464
4	French (fr) Ouverture d'échecs irrégulière		31.0731
5	German (de) Unregelmäßige Eröffnungen		28.0309
6	English (en) Irregular chess opening		24.5905
7	Serbian (sr) Неправилна шаховска отварања		23.7701
8	Swedish (sv) Oregelbundna schacköppningar		13.9045
9	Russian (ru) Неправильное начало		13.3471
10	Czech (cs) Nepravidelné zahájení		11.4386

More...

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

The most popular language versions of the article "Irregular chess opening" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Irregular chess opening		655 699
2	Russian (ru) Неправильное начало		162 822
3	Polish (pl) Nieregularne otwarcie		144 521
4	Spanish (es) Apertura irregular		111 005
5	French (fr) Ouverture d'échecs irrégulière		82 741
6	German (de) Unregelmäßige Eröffnungen		79 910
7	Italian (it) Aperture irregolari		25 552
8	Czech (cs) Nepravidelné zahájení		16 625
9	Finnish (fi) Epätavalliset shakkiavaukset		8 474
10	Hebrew (he) פתיחה נדירה		4 903

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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 "Irregular chess opening" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Irregular chess opening		3 253
2	Russian (ru) Неправильное начало		581
3	French (fr) Ouverture d'échecs irrégulière		372
4	Polish (pl) Nieregularne otwarcie		350
5	German (de) Unregelmäßige Eröffnungen		276
6	Spanish (es) Apertura irregular		126
7	Italian (it) Aperture irregolari		78
8	Czech (cs) Nepravidelné zahájení		44
9	Portuguese (pt) Movimentos não usuais das peças brancas		24
10	Swedish (sv) Oregelbundna schacköppningar		22

More...

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

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

#	Language	AI award	Relative AI
1	English (en) Irregular chess opening		71
2	German (de) Unregelmäßige Eröffnungen		58
3	Polish (pl) Nieregularne otwarcie		42
4	Italian (it) Aperture irregolari		25
5	French (fr) Ouverture d'échecs irrégulière		23
6	Russian (ru) Неправильное начало		18
7	Spanish (es) Apertura irregular		16
8	Czech (cs) Nepravidelné zahájení		7
9	Finnish (fi) Epätavalliset shakkiavaukset		7
10	Portuguese (pt) Movimentos não usuais das peças brancas		5

More...

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

Language versions of the article "Irregular chess opening" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	German (de) Unregelmäßige Eröffnungen		1
2	English (en) Irregular chess opening		1
3	Italian (it) Aperture irregolari		1
4	Catalan (ca) Obertura irregular		0
5	Czech (cs) Nepravidelné zahájení		0
6	Greek (el) Ανορθόδοξο άνοιγμα		0
7	Esperanto (eo) Neregula malfermo		0
8	Spanish (es) Apertura irregular		0
9	Finnish (fi) Epätavalliset shakkiavaukset		0
10	French (fr) Ouverture d'échecs irrégulière		0

More...

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

Language versions of the article "Irregular chess opening" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Irregular chess opening		558
2	French (fr) Ouverture d'échecs irrégulière		231
3	Esperanto (eo) Neregula malfermo		184
4	Italian (it) Aperture irregolari		152
5	Greek (el) Ανορθόδοξο άνοιγμα		128
6	Catalan (ca) Obertura irregular		117
7	Ukrainian (uk) Неправильний початок		104
8	Swedish (sv) Oregelbundna schacköppningar		94
9	Spanish (es) Apertura irregular		85
10	Russian (ru) Неправильное начало		83

More...

#	Language	Value
ca	Catalan Obertura irregular
cs	Czech Nepravidelné zahájení
de	German Unregelmäßige Eröffnungen
el	Greek Ανορθόδοξο άνοιγμα
en	English Irregular chess opening
eo	Esperanto Neregula malfermo
es	Spanish Apertura irregular
fi	Finnish Epätavalliset shakkiavaukset
fr	French Ouverture d'échecs irrégulière
he	Hebrew פתיחה נדירה
it	Italian Aperture irregolari
lt	Lithuanian Neįprasti šachmatų debiutai
pl	Polish Nieregularne otwarcie
pt	Portuguese Movimentos não usuais das peças brancas
ru	Russian Неправильное начало
sr	Serbian Неправилна шаховска отварања
sv	Swedish Oregelbundna schacköppningar
uk	Ukrainian Неправильний початок

Best Rank

English: #129547 02.2023

Global: #124172 12.2020

Best Rank

English: #11783 07.2016

Global: #19001 11.2002

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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