An entry in the Encyclopedia of Chess Openings (ECO D38), reached after 9 half-moves: 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+.
1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+
No further variations branch from this position in our database. To explore neighbouring ideas: