Opening Repertoire: The Ruy Lopez - Joshua DoknjasOpening Repertoire: The Ruy Lopez by Joshua Doknjas The Ruy Lopez is perhaps the most classical of all chess openings. It dates back to the 16th century and has featured in the opening repertoire of every modern world champion. It is a highly flexible variation: Bobby Fischer used it to create numerous powerful strategic masterpieces. In the hands of Anatoly Karpov it led to many of his trademark positional squeezes, whereas Garry Kasparov often used