ECO A00
Grob Opening
The position after 1.g4.
Grob Opening
1 half-moves in · 2 named continuations
8♜
♞
♝
♛
♚
♝
♞
♜
7♟
♟
♟
♟
♟
♟
♟
♟
6
5
4
♙
3
2♙
♙
♙
♙
♙
♙
♙
a1♖
b♘
c♗
d♕
e♔
f♗
g♘
h♖
1. g4
Grob Opening is filed under ECO A00. It is the position after 1.g4 — 1 half-moves in, with Black to move. From here theory names 2 continuations: f5, g5.