Chess Problem Database Server (by Gerd Wilts)

Yet Another Chess Problem Database (by Dmitri Turevski)

WFCC - World Federation for Chess Compositions

FIDE - World Chess Federation

Russian Chess Federation

Russian-language FORUM about chess composition

British Chess Problem Society

Finnish Chess Problem Society

Dutch Chess Problem Society

Die Schwalbe

Mat Plus


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The Ural's Problemist

Chess Fonts

Chess Programs and Utilities