An entry in the Encyclopedia of Chess Openings (ECO E33), reached after 8 half-moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6.
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6
No further variations branch from this position in our database. To explore neighbouring ideas: