Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit

1.e4 c5 2.Nf3 Nc6 3.Bb5 Na5 4.b4

ECO B30

The Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit is a chess opening line in the Sicilian Defense complex, reached after 1.e4 c5 2.Nf3 Nc6 3.Bb5 Na5 4.b4.

It is catalogued under code B30 in the Encyclopaedia of Chess Openings (ECO).

The defining move b4 is chosen by White on move 4.

The Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit 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.

Study this line with a grandmaster

This position is covered in the The Rossolimo 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.