ECO E11 · Bogo-Indian Defense
Bogo-Indian Defense: Grünfeld Variation
The position after 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2.
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2
Bogo-Indian Defense: Grünfeld Variation is filed under ECO E11, a variation of Bogo-Indian Defense. It is the position after 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2 — 7 half-moves in, with Black to move. Named theory ends here; beyond this the position is yours to work out.