The Ruy Lopez is an incredibly popular opening at all levels of chess; this is perhaps unsurprising given that it's recognized by most experts as White's greatest chance of obtaining a lasting advantage after the moves 1 e4 e5. Also known as the Spanish Opening, the Lopez is steeped in rich tradition, having provided the battleground for countless clashes between World Champions of past and present: Kasparov, Fischer, Karpov, Topalov, Kramnik, Anand - the list is endless! .