An entry in the Encyclopedia of Chess Openings (ECO B03), reached after 9 half-moves: 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. c5.
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. c5
2 replies continue into sub-variations from this position. Click any to drill deeper.