An entry in the Encyclopedia of Chess Openings (ECO B65), reached after 18 half-moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 Nxd4.
No further variations branch from this position in our database. To explore neighbouring ideas: