Pertahanan Sicily

An opening family defined by 1.e4 c5, where Black contests the center with a flank pawn.

A family of Sicilian lines where White advances the pawn in front of the queen early and trades it for Black's c-pawn.

An Open Sicilian variation in which Black plays ...a6 to control b5 and preserve several possible central structures.

A system against the Najdorf beginning with Be3 and often followed by f3, Qd2, and a pawn attack against Black's king.

A Najdorf branch full of concrete threats in which Black's queen captures on b2 and accepts danger in return for a pawn.

An Open Sicilian variation in which Black plays ...g6 to develop the bishop through g7 onto the long diagonal.

An aggressive system against the Dragon in which White prepares to place the king on c1 and advance pawns toward Black's king.

An attack against the Dragon defined by 6.f4, with which White prepares e5 and a rapid pawn advance toward the black king.

A Sicilian variation that prepares ...Bg7 without first playing ...d6, aiming to free the center with ...d5 in one move.

A Sicilian move order in which Black plays 2...g6 to open a path for the f8-bishop toward g7.

An Open Sicilian variation in which Black develops both knights to f6 and c6 before committing the central pawn structure.

An aggressive system against the Classical Sicilian in which Bg5 pressures the f6-knight and helps White bring pieces into play quickly.

A Sicilian system in which White moves the bishop from f1 to c4 to pressure f7 and accelerate attacking play.

A highly aggressive Sozin continuation with Bc4, Be3, and Qe2, usually aimed at placing White's king on c1 and attacking Black's king.

A Sicilian system with black pawns on d6 and e6, a compact center, and counterplay on either wing.

A direct attack against the Scheveningen beginning with 6.g4 and preparing g5 to drive away the f6-knight.

A dynamic Sicilian system where Black plays an early ...e5, gains space, and accepts a lasting weakness on d5.

A Sicilian variation in which Black plays ...e5 before developing the knight from g8.

A flexible Sicilian system with ...e6 and ...Nc6, designed to develop pieces and prepare the freeing ...d5 break.

A flexible Sicilian variation where Black plays ...e6 and ...a6 before deciding how to place the knights.

A Sicilian line in which both sides develop both knights quickly while preserving several choices for their central pawns.

A variation in which White recaptures on d4 with the queen instead of the knight and avoids many main branches.

A family of positions beginning with 2.Nc3 where White usually delays d4 and builds the position more gradually.

An aggressive anti-Sicilian plan where White plays f4 to gain space and prepare an attack on the king.

An anti-Sicilian system where White plays c3 to prepare a strong pawn center with d4.

A response to 2...Nc6 where White develops the bishop to b5 and postpones opening the center with d4.

A Sicilian system where White gives an early check with the bishop beside the king before opening the center.

A gambit against the Sicilian where White offers a pawn for rapid development and open central lines.

A gambit in which White offers 2.b4 to deflect the c5-pawn and build a broad center with d4.

A Sicilian line defined by 2...a6, a flexible move that controls b5 and prepares expansion on the queen's side.