An entry in the Encyclopedia of Chess Openings (ECO E12), reached after 9 half-moves: 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3.
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3
4 replies continue into sub-variations from this position. Click any to drill deeper.