An entry in the Encyclopedia of Chess Openings (ECO A15), reached after 7 half-moves: 1. c4 Nf6 2. Nc3 g6 3. Nf3 Bg7 4. e4.
1. c4 Nf6 2. Nc3 g6 3. Nf3 Bg7 4. e4
No further variations branch from this position in our database. To explore neighbouring ideas: