Best response to the Catalan Opening: Closed, Main Line (E09)

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Qc2 c6 8. Nbd2 · Black to move

What is the best response to the Catalan Opening: Closed, Main Line (1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Qc2 c6 8. Nbd2)? Black to move. See the top replies ranked by opening theory and real-game results, starting with b6.

The main theoretical reply is b6, reaching the Catalan Opening: Closed Variation, Traditional Variation.