World Federation for Chess Composition
Official WFCC site maintained by Julia Vysotska from May 2013
Category: Organization
Added by: Administrator (July 13th, 2023)
http://www.wfcc.ch/
Site Rating: 3.44

Rating Lists
Rating lists for solvers
Category: Solving
Added by: Administrator (May 7th, 2019)
http://solving.matplus.net/
Site Rating: 4.88

Chess Problem Database Server
This chess problem database has been developed and is maintained through volunteer work of a lot of benevolent contributors, who spent their time and energy in the interest of the chess problem community.
Category: Database
Added by: Administrator (July 13th, 2023)
http://pdb.dieschwalbe.de/index.jsp
Site Rating: 2.11

Yet another chess problem database
Yet another chess problem database, contains more than 330,000 problems currently.
Category: Database
Added by: Administrator (August 9th, 2017)
http://www.yacpdb.org/
Site Rating: 4.09

Composers' Names in Various Alphabets
The tables on the pages of this site contain writings of composers' names in their own alphabet using some standard transliterations and transcriptions in some widely used and/or large collections. In addition, you'll find : - his/her country (e.g. the country for which (s)he would contribute in the WCCT) as an ISO 3166-1 alpha-3 code; - his/her date of birth (if known) and date of death (with the obvious restrictions).
Category: Database
Added by: Administrator (April 8th, 2015)
http://database.wfcc.ch/index.php?-table=composers
Site Rating: (n/a)

Julia’s Fairies - dedicated to the world of Fairy Chess!
Informal & Thematic Tourneys for Fairy problems, Forum, News and much more. The owner and author Julia Vysotska.
Category: Personal
Added by: Administrator (January 31st, 2014)
http://juliasfairies.com/
Site Rating: (n/a)

SuperProblem
КОНСТРУКТИВНЫЙ ПОЗИТИВ - This site brought various novelties, the most popular being QCT's - not less than 100 during the first two years!
Category: Composing
Added by: Administrator (January 4th, 2019)
http://superproblem.ru/index.html
Site Rating: 4.71

Schweizerische Vereinigung der Kunstschachfreunde
Home page of The Swiss Chess Problem Association
Category: Organization
Added by: Administrator (January 31st, 2014)
http://www.kunstschach.ch/
Site Rating: (n/a)

OzProblems - Australian Chess Problem Composition
A site devoted to the chess problem art in Australia maintained by Peter Wong.
Category: Organization
Added by: Administrator (March 2nd, 2019)
http://www.ozproblems.com
Site Rating: 3.73

The Problemist
A presentation and some problems quoted from issues of the famous British review.
Category: Magazine
Added by: Administrator (March 2nd, 2019)
http://www.theproblemist.org/
Site Rating: 4.52

Hilmar Ebert's homepage
Very interesting and informative. Includes "Encyclopedia of Chess Language" - a rich and growing list of chess and chess problem terms.
Category: Personal
Added by: Administrator (November 14th, 2013)
http://www.hilmar-ebert.de/
Site Rating: 4.10

ChessProblem.Net Discussion Board
Another Forum dedicated to chess problems.
Category: Forum
Added by: Administrator (May 6th, 2008)
http://ChessProblem.net
Site Rating: (n/a)

Ján Golha - Chess Composition
Compositions tourneys, Chess magazines, Awards of tourneys, Photos, ...
Category: Personal
Added by: Administrator (May 10th, 2011)
http://www.goja.sk
Site Rating: 4.65

Vaclav Kotesovec's Pages
Home Page of Vaclav Kotesovec, "fairy chess composer and programmer"
Category: Personal
Added by: Administrator (May 16th, 2017)
http://www.kotesovec.cz
Site Rating: 4.48

Popeye - Chess Solving Program
Popeye is a free chess solving software and one of the best solving programs. By itself, Popeye has no graphical interface, but it can be used in DOS, Windows, Linux, MacOS... It can solve problems with many fairy pieces and conditions. (Olive is an interface for Popeye.)
Category: Software &Database
Added by: Administrator (August 3rd, 2019)
https://github.com/thomas-maeder/popeye/releases/
Site Rating: 4.43

Uralski Problemist
For Russian speakers (readers) mostly, but not only. Russian and international news, awards, contests.
Category: Magazine
Added by: Administrator (April 12th, 2018)
http://selivanov.world/
Site Rating: 4.33

Olive - GUI for Popeye composition chess software
Olive is a free open source cross-platform graphical front-end for Popeye chess software and more. Author is Dmitri Turevski
Category: Software &Database
Added by: Administrator (February 12th, 2016)
https://code.google.com/p/olive-gui/
Site Rating: 4.25

Harmonie Homepage
This German magazine features only helpmates, selfmates and fairies. Its site has an interesting page, dedicated to the awards status, where the awards are available in pdf form.
Category: Magazine
Added by: Eric Huber (March 2nd, 2019)
http://www.problemschach.de/harmonie/
Site Rating: 4.21

Chess Composition Microweb
Excellent chess problems page started in last Millenium and brilliantly maintained until now by Juraj Lorinc.
Category: Personal
Added by: Administrator (July 11th, 2014)
http://www.jurajlorinc.com/chess/chess.htm
Site Rating: 4.05

Die Schwalbe
The German Chess Problem Society and magazine website.
Category: Magazine
Added by: Darko Šaljić (October 21st, 2017)
http://www.dieschwalbe.de
Site Rating: 3.40