Nimzo-Larsen Attack: Classical Variation
ECO A01
Move order
1. b3 d5
Ideas
ECO A covers irregular and flank openings—systems that skip the main e4/d4 fight early. White prepares a queenside fianchetto, often transposing into Reti or English structures. 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.