An entry in the Encyclopedia of Chess Openings (ECO B20), reached after 13 half-moves: 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. c4 Qe6 7. Bd3.
No further variations branch from this position in our database. To explore neighbouring ideas: