ECO E21: Nimzo-Indian Defense
ECO E21 is part of volume E — Indian Defenses.
The Lichess chess-openings dataset files 4 named lines under it.
The shortest is Nimzo-Indian Defense: Three Knights Variation:
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3.
That position has come up in 2,261,376 Lichess games between players rated 1600 to 2500: White won 48.3%, 5.2% were drawn and Black won 46.5%.
| Opening | Moves | Plies |
|---|---|---|
| Nimzo-Indian Defense: Three Knights Variation | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 |
7 |
| Nimzo-Indian Defense: Three Knights Variation, Korchnoi Variation | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. d5 |
9 |
| Nimzo-Indian Defense: Three Knights Variation, Euwe Variation | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. d5 Ne4 |
10 |
| Nimzo-Indian Defense: Three Knights Variation, Shocron Gambit | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nc3 c5 5. d5 b5 |
10 |