Complex sentence: The Ruy Lopez named after 16th-century Spanish priest Ruy López de Segura is one of the most popular openings, with such a vast number of variations that in the Encyclopaedia of Chess Openings all codes from C60 to C99 are assigned to them.
Split into simpler sentences: The Ruy Lopez is named after 16th-century Spanish priest Ruy López de Segura. It is one of the most popular openings, with such a vast number of variations that in the Encyclopaedia of Chess Openings all codes from C60 to C99 are assigned to them.