* Ankona - create diagrams, store and solve chess problems

* Brutalis - Chess / Skak

* Chess Archive - creating a personal database of chess compositions

* ChessExplorer

* Chess Problem Solver

* Chess Tactics Pro - Puzzles

* Chess Wizard

* Chest - ChestUCI (including database) - Ekkehard May´s Chessdiagrammer

* Euclide

* Fancy

* Freezer

* Goliath Mate UCI

* Guess the Move - User´s Guide

* Gustav for Windows 7

* MateMaster

* MaterUCI

* Matesolver (section "Programmieren in C")

* Natch (DOS commandline stand-alone application) - iNatch (Java graphical interface)

* Popeye - Franz Huber´s Program Projects - Olive (link "Shareware") - PyWinShell - Windows Popeye Shell

* Problemist for Palm Pilot / PC / Pocket PC

* Retractor

* Utilities and Programs by Martin Väth

* Schwalbe - Chess Problem Database Server - * Deutsche Vereinigung für Problemschach

* VKsach

* Wilhelm - Older Edition

* WinChloe and WinChloe Light

* Yatt - Yet Another Tactics Trainer - User´s Guide

* Abdelaziz Onkoud (French)

* Andrew Buchanan

* ArcaMax Publishing Inc

* ARVES - Alexander Rueb Vereniging voor SchaakEindspelStudie

* Association Neuchâteloise des Clubs d´Échecs, Switzerland (with comments in French)

* Berlinthema - Schachproblem und Problemschach (German)

* Brian Stephenson´s BDS Website

* British Chess Problem Society

* Bruno Berenguer´s checkmates / chess problems

* Chess Composition Microweb by Juraj Lörinc

* ChessdBase by Jaroslav Stun

* Chess Endgame Study Database Moldova

* Chess Problems by James Acres / Aaron Cronan / Dave Gertler / Shelley Knowlton / Adam Miller

* Chess Puzzles by GMs

* Chess Tempo - website dedicated to helping chess players improve their game

* Club d´Échecs de la Chaux de Fonds, Switzerland - problèmes (PDF) - solutions (PGN)

* Convekta - chess puzzles

* Dansk Skakproblem Klub - Danish Chess Problem Society

* DEJASCACCHI edited by Michele Deiana

* DHTML - a collection of tools like PGN viewer / opening and tactic training / chess puzzles

* El arte del mate en dos by Eduardo Sadier

* Glarean Magazin

* Greek Blogspot - chess problems

* harmonie-aktiv - Zeitschrift für Problemschach

* iChess - Chess Tactics

* Ideachess - chess tactics training

* Il Matto del Postino (Italian)

* Ján Golha´s Chess Composition

* John Bain´s Chess Puzzles

* Mastermove by Bert van der Marel

* Matthieu Leschemelle´s Problemist Collections - fichiers de problèmes à télécharger

* Österreichischer Schachbund (Chess Fedeartion from Austria)

* Peter Rösler´s Schachaufgaben (German)

* Peter Vogel - section Schach (German)

* Phénix - a French review (several editions) of chess problems

* ProbÉchecs including analysis and combinations (French)

* Probleemblad - Nederlandse bond van schaakprobleemvrienden, schaakproblemen etc.

* Problemas de Ajedrez (Spanish)

* Problèmes d´échecs by Étienne Depuis (French)

* Problemschach (German)

* Problemschachbuch.de - link "Nachrufe", an obituary for Dr. Werner Speckmann (German)

* Sachmatija, a website from Lithuhania

* Schachblätter by Stefan Kalhorn

* Schachclub Leinzell (German chess club) - link "Diagramme" (with date)

* Solving Tourneys Database - Belgian and Dutch competitons by Luc Palmans

* Studies and Problems - composed by J.T. Sanderse

* Suomen Tehtäväniekat - Finnish Chess Problem Society (website particulary in English)

* The Contest Center - Chess Puzzles

* Tim Krabbé´s Website "de problemen" - Chess Curiosities

* World Federation for Chess Composition - Official Website

* Yet Another Chess Problem Database by Dmitri Turevski

* Z-Chess 101