ECO E14
Queen's Indian Defense, with e3, Bb4+ Line
The position after 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2 b6 5.e3 Bb7.
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 b6 5. e3 Bb7
Queen's Indian Defense, with e3, Bb4+ Line is filed under ECO E14, a variation of Queen's Indian Defense, with e3. It is the position after 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2 b6 5.e3 Bb7 — 10 half-moves in, with White to move. Named theory ends here; beyond this the position is yours to work out.