All ECO Codes
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E20
Nimzo-Indian Defence
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
E20
Nimzo-Indian Defence
Kmoch Variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3
E20
Nimzo-Indian Defence
Mikenas Attack
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qd3
E20
Nimzo-Indian Defence
Romanishin-Kasparov (Steiner) System
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.g3