An entry in the Encyclopedia of Chess Openings (ECO A65), reached after 13 half-moves: 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bg5 c5 7. d5.
No further variations branch from this position in our database. To explore neighbouring ideas: