The Ruy López de Segura page (often written Ruy Lopez in English sources) honors the Spanish priest and chess pioneer who helped transform the game in the 16th century. Regarded as the first modern chess theorist, he gave his name to the Ruy López Opening, still central in elite chess today. His ideas flourished during Spain’s Siglo de Oro, when chess was viewed as a symbol of intellect and nobility.

Leonardo da Cutro and Ruy Lopez play chess at the Spanish Court
Luigi Mussini: Public domain (License: Public Domain Mark 1.0) via Wikimedia Commons (1871)

Born: c. 1530, Zafra, Spain
Died: c. 1580, Spain
Ruy Lopez was a priest and scholar who rose to fame at the royal court of Philip II. Known for his deep positional understanding, he was revered across Europe. In 1561, he published Libro de la invención liberal y arte del juego del ajedrez, one of the first structured chess manuals. There, he promoted systematic opening theory, rejected outdated views from writers like Damiano, and emphasized chess as a science of judgment.
In 1575, at the royal court in Madrid, López faced Giovanni Leonardo di Bona and Paolo Boi in what is widely regarded as the first international chess competition. Though defeated, his legacy endured. The Ruy López Opening—1.e4 e5 2.Nf3 Nc6 3.Bb5—remains a cornerstone of modern play.
Ruy Lopez’s 1561 treatise was a landmark in chess literature. He was the first to present chess openings in a structured and critical way, most notably through the Ruy Lopez Opening, marking the beginning of modern opening theory. His work was carried forward by Gioachino Greco in the 17th century and later developed by François-André Philidor in the 18th century, marking a continuous line of theoretical progress.
“Chess is a noble art, but also a weapon of intellect.” – Attributed to Ruy Lopez de Segura
During the Spanish Renaissance, chess was embraced in royal courts and salons as a reflection of power, discipline, and intellect. In this setting, Lopez’s dual role as priest and court scholar reinforced chess as a mark of intellectual prestige. Lopez thrived in this climate, earning royal patronage and international prestige. His matches in Madrid and Rome, and especially the 1575 Madrid competition, also symbolized a broader transition: from Spain’s golden era to Italy’s long-standing leadership in European chess. Even in defeat, his intellectual stature was unmatched.
Lopez’s legacy goes beyond the opening that bears his name. His treatise helped formalize theory and his ideas still echo in today’s pedagogy. While few original games survive, those reconstructed show a style both tactically resourceful and positionally sound.
One story tells of Lopez playing the Duke of Medina Sidonia, whose execution was delayed by their game—long enough for a royal pardon to arrive. Whether fact or legend, it captures Lopez’s near-mythic status.
Ruy Lopez de Segura, Spain
Books
The Art of the Game of Chess (2020)
Author: Ruy Lopez de Segura
Editor and Translator: Michael J. McGrath
Publisher: Catholic University of America Press
This edition is the first complete English translation of Ruy Lopez de Segura’s groundbreaking 1561 chess treatise. The book includes over 275 footnotes, historical context, and a foreword by Grandmaster Andrew Soltis.
The Classical Era of Modern Chess (2014)
Author: Peter J. Monté
Publisher: McFarland & Company
This scholarly study explores the development of chess from the late 15th to the mid-18th century, focusing on early masters such as Ruy Lopez and their influence on modern chess theory.
Quote Sources
General Sources
Photo Credits
Leonardo da Cutro and Ruy Lopez play chess at the Spanish Court
Luigi Mussini: Public domain (License: Public Domain Mark 1.0) via Wikimedia Commons (1871)
Title page of «Libro de la invención liberal y arte del juego del axedrez» (1561)
Ruy Lopez de Segura: Public domain (License: Public Domain Mark 1.0) via Wikimedia Commons
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