B00-B99

The starting point for the most popular and complex response to 1.e4. It creates immediate asymmetry and offers chances for a win for both sides.

Includes aggressive gambits and flank attacks like the Grand Prix and Smith-Morra. These are designed to take the Sicilian player out of their deep opening theory.

A solid and positional alternative to the Open Sicilian. White prepares d4 with c3, leading to structures more reminiscent of the Ruy Lopez or French Defense.

White avoids opening the center and focuses on a slow kingside buildup. It is a strategic system where understanding of pawn structures is more vital than tactical memorization.

A further development of the Closed Sicilian featuring a kingside fianchetto. White aims for a kingside attack while Black usually expands on the queenside.

The theoretical main line of the Closed Sicilian. The game is a slow-motion race where both sides prepare breakthroughs on opposite wings.

A modern refinement of the Closed Sicilian using Be3. White aims to control the center and queenside squares more effectively before starting a kingside push.

Covers early sidelines for Black after 2.Nf3. These are often used to avoid main-line theory or to trap an unprepared White player.

An early a6 push by Black that keeps White guessing. It is a flexible wait-and-see move that can transpose into several different Sicilian systems.

Black challenges the knight on f3 immediately. It leads to highly unusual and tactical positions that are quite different from the typical Open Sicilian.