Caro-Kann Defense: Advance Variation, Van der Wiel Attack, Dreyev Defense
ECO B12
Move order
1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 Qb6
Ideas
ECO B covers semi-open games after 1. e4 where Black does not reply …e5. White stakes a claim in the center and opens lines for the bishop and queen. This entry tracks a longer branch in the opening tree. Use the diagram and SAN list to recognize the tabiya, then try the line against Maia to explore typical plans in practice.