Chess opening · ECO E10
Blumenfeld Countergambit
8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5
Blumenfeld Countergambit is catalogued under ECO code E10. It is reached after 4 moves (8 half-moves): 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5. After the last move it is White to play. White opens 1. d4. It is the defining line of the Blumenfeld Countergambit family, which has 3 catalogued lines in total. 1 deeper line continue from here, listed below.