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ECO E39: Nimzo-Indian Defense

ECO E39 is part of volume E — Indian Defenses. The Lichess chess-openings dataset files 2 named lines under it. The shortest is Nimzo-Indian Defense: Classical Variation, Berlin Variation, Pirc Variation: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O.

That position has come up in 36,531 Lichess games between players rated 1600 to 2500: White won 47.0%, 8.3% were drawn and Black won 44.7%.

OpeningMovesPlies
Nimzo-Indian Defense: Classical Variation, Berlin Variation, Pirc Variation 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 10
Nimzo-Indian Defense: Classical Variation, Berlin Variation, Macieja System 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. a3 Bxc5 7. Nf3 b6 14