Example image of eyePlorer eyePlorer map for 'Chess theory': Chess Chess endgame Chess middlegame Chess opening Theory A History of Chess Game Harold James Ruthven Murray History Literature List of chess books List of chess periodicals Baruch Harold Wood David Vincent Hooper Ken Whyld Chess libraries Cleveland Public Library John G. White Computer Luis Ramirez de Lucena Bishop's Opening Damiano Defence Giuoco Piano Petrov's Defence Ruy Lopez Göttingen manuscript Philidor Defence Ponziani Opening Queen's Gambit Accepted Bird's Opening English Opening London System Apothecary Pedro Damiano Portugal Pawn (chess) Harry Golombek King's Gambit Queen's Gambit Sicilian Defence François-André Danican Philidor Gioachino Greco Giulio Cesare Polerio Joseph Bertin Ruy López de Segura Aaron Alexandre Carl Jaenisch Handbuch des Schachspiels Paul Rudolf von Bilguer Carl Schlechter