An entry in the Encyclopedia of Chess Openings (ECO D24), reached after 9 half-moves: 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 a6 5. e4.
1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 a6 5. e4
No further variations branch from this position in our database. To explore neighbouring ideas: