An entry in the Encyclopedia of Chess Openings (ECO B20), reached after 7 half-moves: 1. e4 c5 2. d3 Nc6 3. c3 d6 4. f4.
1. e4 c5 2. d3 Nc6 3. c3 d6 4. f4
No further variations branch from this position in our database. To explore neighbouring ideas: