An entry in the Encyclopedia of Chess Openings (ECO C77), reached after 9 half-moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3.
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3
No further variations branch from this position in our database. To explore neighbouring ideas: