ECO E48 · Nimzo-Indian Defense
Nimzo-Indian Defense: Normal Variation, Classical Defense
The position after 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5.
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5
Nimzo-Indian Defense: Normal Variation, Classical Defense is filed under ECO E48, a variation of Nimzo-Indian Defense: Normal Variation. It is the position after 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 — 10 half-moves in, with White to move. Named theory ends here; beyond this the position is yours to work out.