An entry in the Encyclopedia of Chess Openings (ECO D34), reached after 20 half-moves: 1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. Nf3 d5 5. cxd5 exd5 6. g3 Nc6 7. Bg2 Be7 8. O-O O-O 9. Bg5 Be6 10. Rc1 c4.
No further variations branch from this position in our database. To explore neighbouring ideas: