An entry in the Encyclopedia of Chess Openings (ECO E29), reached after 18 half-moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. a3 Bxc3+ 7. bxc3 O-O 8. Ne2 b6 9. e4 Ne8.
No further variations branch from this position in our database. To explore neighbouring ideas: