Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nf6/3. Nxe5/3...Nxe4/4. Qe2

Petrov's Defence
a b c d e f g h
8 a8 b8 c8 d8 e8 f8 g8 h8 8
7 a7 b7 c7 d7 e7 f7 g7 h7 7
6 a6 b6 c6 d6 e6 f6 g6 h6 6
5 a5 b5 c5 d5 e5 f5 g5 h5 5
4 a4 b4 c4 d4 e4 f4 g4 h4 4
3 a3 b3 c3 d3 e3 f3 g3 h3 3
2 a2 b2 c2 d2 e2 f2 g2 h2 2
1 a1 b1 c1 d1 e1 f1 g1 h1 1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4 4. Qe2

Petrov's Defence, Damiano VariationEdit

4. Qe2Edit

White threatens the black knight, but if the black knight moves immediately, black will lose material. For this reason, 4...Qe7 is the best reply.

This position is most common among beginners, but when played by strong players the line is an interesting pawn sacrifice (see the modest +/= evaluation given to the main line, 4.Qe2 Qe7 5.Qxe4 d6, in the theory table below).

Theory tableEdit

For explanation of theory tables, see theory table and for notation, see algebraic notation..

1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4 4. Qe2

4 5 6 7
Qe2
Qe7
Qxe4
d6
d4
dxe5
dxe5
Nc6
+/=
Qe2
d5






+/=
Qe2
d6
Qxe4
dxe5




=/∞
Qe2

4...Nf6??

Nc6+

Be7

Nxd8

Kxd8

+/-

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