Sicilian Defence, Chekhover Variation to: Evgeni Vasiukov vs Loek van Wely, 2002 Mikhail Tal vs Robert Eugene Byrne, 1976 Sicilian Defence, Chekhover Variation The Sicilian Defence, Chekhover Variation (also sometimes called the Szily Variation or Hungarian Variation) is a chess opening named after Vitaly Chekhover, from the game Chekhover–Lisitsin, Leningrad 1938. It is defined by the moves: On move four White ignores the standard opening principle to not develop the queen too early in the game. Although the Chekhover Variation is somewhat rare at grandmaster level, it is not uncommon among amateurs. The "Encyclopaedia of Chess Openings" (ECO) assigns code B53 to this opening.
Roderigo Lopez Roderigo Lopez Roderigo Lopez (also called Ruy Lopes, Ruy Lopez or Roger Lopez; c. 1517 – 7 June 1594) served as physician-in-chief to Queen Elizabeth I of England from 1581 until his death by execution, having been found guilty of plotting to poison her. A Portuguese "converso" or New Christian of Jewish ancestry, he is the only royal doctor in English history to have been executed, and may have inspired the character of Shylock in Shakespeare's "The Merchant of Venice", which was written within four years of his death. The son of a Portuguese royal physician of Jewish descent, Lopez