Chess opening · ECO A40
Borg Defense: Borg Gambit
8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
1. d4 g5
Borg Defense: Borg Gambit is catalogued under ECO code A40. It is reached after 1 move (2 half-moves): 1. d4 g5. After the last move it is White to play. White opens 1. d4. It is a named variation of the Borg Defense, which has 5 catalogued lines in total.