Example image of eyePlorer eyePlorer map for 'Chess problem': Chess Chess piece Chess puzzle Chess composer Chess problem terminology Helpmate Selfmate Reflexmate Seriesmover Fairy chess Endgame study Chess endgame Castling Retrograde analysis En passant Knight's tour Eight queens puzzle Proof game Sam Loyd Vladimir Nabokov Promotion (chess) Zugzwang Pipe organ Grimshaw (chess) Permanent Commission of the FIDE for Chess Compositions Lacny Patrol chess World Chess Solving Championship FIDE titles Grandmaster (chess) André Chéron Comins Mansfield FIDE Album Genrikh Gasparyan International Judge of Chess Compositions Stephen L. Carter Michael Lipton Jeremy Morse John Nunn Albino (chess) Alexander Pituk Allumwandlung Alois Wotawa Arvid Kubbel Babson task Charles Masson Fox Composition school Die Schwalbe Domenico Lorenzo Ponziani Erich Zepler