Sicilian Defense: Dragon Variation, Classical Variation, Grigoriev Variation

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 g6 7.Be3 Bg7 8.Qd2 O-O 9.O-O-O

ECO B72

The Sicilian Defense: Dragon Variation, Classical Variation, Grigoriev Variation is a chess opening line in the Sicilian Defense complex, reached after 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 g6 7.Be3 Bg7 8.Qd2 O-O 9.O-O-O.

It is catalogued under code B72 in the Encyclopaedia of Chess Openings (ECO).

The defining move O-O-O is chosen by White on move 9.

Study this line with a grandmaster

This position is covered in the Beat the Sveshnikov Sicilian 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.