Duras Gambit
ECO B00
Move order
1. e4 f5
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 names the opening after the first moves. Use the diagram and SAN list to recognize the tabiya, then try the line against Maia to explore typical plans in practice.