Quality:

Check-mate system - ship identification protocol used by the Royal Navy in World War II. Article “Check-mate system” in English Wikipedia has 24.3 points for quality (as of July 1, 2025).
The article contains 6 references and 3 sections.
Since the creation of article “Check-mate system”, its content was written by 10 registered users of English Wikipedia and edited by 10 registered Wikipedia users in all languages.
The article is cited 2 times in English Wikipedia and cited 2 times in all languages.
The highest Authors Interest rank from 2001:
- Local (English): #209006 in April 2016
- Global: #374132 in December 2005
The highest popularity rank from 2008:
- Local (English): #589790 in March 2008
- Global: #957525 in March 2008
There is 1 language version 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).