An entry in the Encyclopedia of Chess Openings (ECO E23), reached after 10 half-moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6.
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6
No further variations branch from this position in our database. To explore neighbouring ideas: