Sicilian Defense: Smith-Morra Gambit Accepted, Pin Defense

1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Bb4

ECO B21

The Sicilian Defense: Smith-Morra Gambit Accepted, Pin Defense is a chess opening line in the Sicilian Defense complex, reached after 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Bb4.

It is catalogued under code B21 in the Encyclopaedia of Chess Openings (ECO).

The defining move Bb4 is chosen by Black on move 6.

The Sicilian Defense: Smith-Morra Gambit Accepted, Pin Defense is a line of the Sicilian Defense. The Sicilian Defense is a chess opening that begins 1.e4 c5. Read the complete Sicilian Defense guide: what it is, how to reach it, its main variations, how to play against it, and its history.

More ECO B21 openings

• Bird Opening — 1.f4

Study this line with a grandmaster

This position is covered in the Smith-Morra Gambit course: a GM-authored repertoire you study move by move, then practice against a human-like AI opponent.

Every chess term used here is defined in the chess terms glossary. Browse all opening courses or the full ECO code index.