An entry in the Encyclopedia of Chess Openings (ECO D33), reached after 13 half-moves: 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 c4 7. e4.
No further variations branch from this position in our database. To explore neighbouring ideas: