ECO E19: Queen's Indian Defense

ECO E19 is part of volume E — Indian Defenses. The Lichess chess-openings dataset files one named line under it. It is Queen's Indian Defense: Classical Variation, Traditional Variation, Main Line: 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3.

That position has come up in 58,404 Lichess games between players rated 1600 to 2500: White won 44.1%, 10.7% were drawn and Black won 45.2%.