An entry in the Encyclopedia of Chess Openings (ECO B20), reached after 9 half-moves: 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Bb2.
1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Bb2
No further variations branch from this position in our database. To explore neighbouring ideas: