Chess opening · ECO E11
Bogo-Indian Defense: Retreat Variation
8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3
Bogo-Indian Defense: Retreat Variation is catalogued under ECO code E11. It is reached after 6 moves (11 half-moves): 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3. After the last move it is Black to play. White opens 1. d4. It is a named variation of the Bogo-Indian Defense, which has 21 catalogued lines in total.