ECO C42
Petrov's Defense
The position after 1.e4 e5 2.Nf3 Nf6.
Petrov's Defense
4 half-moves in · 3 named continuations
8♜
♞
♝
♛
♚
♝
♜
7♟
♟
♟
♟
♟
♟
♟
6
♞
5
♟
4
♙
3
♘
2♙
♙
♙
♙
♙
♙
♙
a1♖
b♘
c♗
d♕
e♔
f♗
g
h♖
1. e4 e5 2. Nf3 Nf6
Variations of Petrov's Defense
6 namedPetrov's Defense is filed under ECO C42. It is the position after 1.e4 e5 2.Nf3 Nf6 — 4 half-moves in, with White to move. From here theory names 3 continuations: d4, Nc3, Bc4.