ECO A00
Amsterdam Attack
The position after 1.e3 e5 2.c4 d6 3.Nc3 Nc6 4.b3 Nf6.
Amsterdam Attack
8 half-moves in · no named continuation
8♜
♝
♛
♚
♝
♜
7♟
♟
♟
♟
♟
♟
6
♞
♟
♞
5
♟
4
♙
3
♙
♘
♙
2♙
♙
♙
♙
♙
a1♖
b
c♗
d♕
e♔
f♗
g♘
h♖
1. e3 e5 2. c4 d6 3. Nc3 Nc6 4. b3 Nf6
Amsterdam Attack is filed under ECO A00. It is the position after 1.e3 e5 2.c4 d6 3.Nc3 Nc6 4.b3 Nf6 — 8 half-moves in, with White to move. Named theory ends here; beyond this the position is yours to work out.