Catalan Opening: Closed, Main Line
ECO E09
Move order
1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Qc2 c6 8. Bf4 b6 9. Nbd2 Bb7 10. e4 dxe4 11. Nxe4 Nxe4 12. Qxe4
Ideas
ECO E covers Indian defenses and related systems where Black fianchettoes or pressures the center from the flanks. White builds a pawn center and keeps the position more closed than after 1. e4. 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.