An entry in the Encyclopedia of Chess Openings (ECO E21), reached after 10 half-moves: 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nc3 c5 5. d5 b5.
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nc3 c5 5. d5 b5
No further variations branch from this position in our database. To explore neighbouring ideas: