Verlag Chess-Base × Verlag Chess-Base Maurice Ashley × Mating PatternsFritztrainer: Interaktives Schachtraining mit VideofeedbackMaurice AshleyChess-BaseCD/DVD2014 Was Grossmeister übersehen Bd. 3: Resümee und TestSchach-VideotrainingMaurice AshleyChess-BaseCD/DVD2011 What Grandmasters don't see Vol. 2: Discovered AttackSchachtrainingsvideo mit fritztrainerMaurice AshleyChess-BaseCD/DVD2011 What Grandmaster don't see Vol 1Schach-VideotrainingMaurice AshleyChess-BaseCD/DVD2011 The Secret to ChessSchach-VideotrainingMaurice AshleyChess-BaseCD/DVD2010