Home › Openings › Nimzo-Indian Defense › Nimzo-Indian Defense: Classical Variation › Nimzo-Indian Defense: Classical Variation, Noa Variation Nimzo-Indian Defense: Classical Variation, Noa Variation, Botvinnik Variation ECO E36 · 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Nc6 Related variationsNimzo-Indian Defense: Classical Variation, Noa Variation, Main LineNimzo-Indian Defense: Classical Variation, Noa Variation, San Remo Variation Practice this opening · Play against the computer