ECO E58: Nimzo-Indian Defense

ECO E58 is part of volume E — Indian Defenses. The Lichess chess-openings dataset files one named line under it. It is Nimzo-Indian Defense: Normal Variation, Bernstein Defense, Exchange Line: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3.

That position has come up in 30,686 Lichess games between players rated 1600 to 2500: White won 48.6%, 6.0% were drawn and Black won 45.4%.