An entry in the Encyclopedia of Chess Openings (ECO A38), reached after 13 half-moves: 1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. b3.
No further variations branch from this position in our database. To explore neighbouring ideas: