ECO A40
Kangaroo Defense
The position after 1.d4 e6 2.c4 Bb4+.
Kangaroo Defense
4 half-moves in · 1 named continuation
8♜
♞
♝
♛
♚
♞
♜
7♟
♟
♟
♟
♟
♟
♟
6
♟
5
4
♝
♙
♙
3
2♙
♙
♙
♙
♙
♙
a1♖
b♘
c♗
d♕
e♔
f♗
g♘
h♖
1. d4 e6 2. c4 Bb4+
Kangaroo Defense is filed under ECO A40. It is the position after 1.d4 e6 2.c4 Bb4+ — 4 half-moves in, with White to move. From here theory names one continuation, Nc3.