E20 — Nimzo-Indian Defense
Indian Defences (E00–E99)
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
Full page: Nimzo-Indian Defense →ECO E20 covers Nimzo-Indian Defense and related lines (Nimzo-Indian Defense, Nimzo-Indian Defense: Dilworth Gambit, Nimzo-Indian Defense: Kmoch Variation, Nimzo-Indian Defense: Mikenas Attack). Main line 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 with variations, statistics, and the best responses.
7 lines under E20
Nimzo-Indian Defense
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
Nimzo-Indian Defense: Dilworth Gambit
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e4
Nimzo-Indian Defense: Kmoch Variation
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3
Nimzo-Indian Defense: Mikenas Attack
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qd3
Nimzo-Indian Defense: Romanishin Variation
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. g3
Nimzo-Indian Defense: Romanishin Variation
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. g3 O-O 6. Bg2
Nimzo-Indian Defense: Romanishin Variation, English Hybrid
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. g3 cxd4 6. Nxd4 O-O 7. Bg2 d5 8. cxd5 Nxd5