Réti Opening: Advance Variation, Navara Gambit
ECO A09
Move order
1. Nf3 d5 2. c4 d4 3. b4 g5
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. The variation is defined by a short, recognizable move order. Use the diagram and SAN list to recognize the tabiya, then try the line against Maia to explore typical plans in practice.