Zukertort Opening: Pachman Gambit
ECO A06
Move order
1. Nf3 d5 2. e3 c5 3. c4 dxc4 4. b3
Ideas
ECO A covers irregular and flank openings—systems that skip the main e4/d4 fight early. White develops a knight and keeps flexible transpositions into d4 or c4 setups. 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.