Related Openings
Nimzo-Indian - Classical, Noa Variation , Main line	d4, Nf6, c4, e6, Nc3, Bb4, Qc2, d5, a3, Bxc3+, Qxc3, Ne4
Nimzo-Indian - Classical, Noa Variation , 5.a3	d4, Nf6, c4, e6, Nc3, Bb4, Qc2, d5, a3