An entry in the Encyclopedia of Chess Openings (ECO A00), reached after 9 half-moves: 1. g3 e5 2. a3 d5 3. Nf3 e4 4. Nh4 Be7 5. d3.
1. g3 e5 2. a3 d5 3. Nf3 e4 4. Nh4 Be7 5. d3
No further variations branch from this position in our database. To explore neighbouring ideas: