The Sicilian Defence begins the moment Black responds to 1.e4 with 1...c5, signaling an immediate shift from quiet play to combat. This opening has carried that message for more than four centuries, declaring to every opponent that a draw holds no interest. The earliest serious analysis came from Italian manuscripts starting in 1594, when Giulio Polerio first examined the concept. The name itself arrived much later, fixed in English by Jacob Henry Sarratt in 1813 after he consulted an old Italian manuscript referring to il gioco siciliano.

Early champions did not embrace the opening with enthusiasm. Philidor dismissed it in 1777 as absolutely defensive and far from best, though he recognized its value for gauging unfamiliar opponents. The opening gained traction through the nineteenth century, appearing in La Bourdonnais's matches against McDonnell and in competitions at London and other major venues. The tide turned decisively against it after Paul Morphy and Wilhelm Steinitz rejected it in favor of other approaches, and by the early twentieth century, Capablanca called Black's position fundamentally flawed.

The Sicilian lay dormant for decades. At St. Petersburg in 1914, not a single game among 75 began with it. At New York in 1924, it appeared only six times in 110 games. The Soviet school of the 1940s and 1950s single-handedly revived the opening, with Botvinnik, Boleslavsky, Kotov, and Bronstein transforming it into a formidable weapon. Miguel Najdorf's contribution of 5...a6 became legendary, stopping White's bishop and preparing Black's counterattack.

The opening generated a menagerie of colorfully named variations. Fyodor Dus-Chotimirsky named the Dragon in 1901 after the constellation suggested by Black's pawn configuration. The Sveshnikov emerged from the work of Evgeny Sveshnikov and Gennadi Timoshchenko in the 1970s, though it had previously carried the name Lasker-Pelikan.

Two world champions claimed the Sicilian as their personal domain. Bobby Fischer employed it almost exclusively as Black against 1.e4, filling his book My 60 Memorable Games with 22 Sicilians and popularizing the Poisoned Pawn variation. Garry Kasparov followed suit, and the 8...d5 line in the 1985 world championship became known as the Kasparov Gambit.

Statistics confirm the opening's dominance in modern chess. Modern Chess Openings declared it the most played and most analyzed opening at club and master level in 1990. The Encyclopaedia of Chess Openings devotes codes B20 through B99 to it, more space than any other opening receives. Around 80 percent of master games with 1.e4 c5 continue with 2.Nf3, and even Deep Blue selected the Alapin variation in its 1996 match against Kasparov. An opening written off as inferior has become essential knowledge for every serious player.