Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nf6/3. d4

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Petrov 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)

rnbqkb1r/pppp1ppp/5n2/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R

Petrov Defence[edit]

Now, Black has to choose between the two pawns which to capture : 3...exd4 or 3...Nxe4. Unless he wants to keep on playing a symmetrical game with 3...d5.

A transposition to Philidor's Defence is possible by the mean of 3...d6

Theory table[edit]

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

1. e4 e5 2. Nf3 Nf6 3. d4

3
...
exd4
=
...
Nxe4
=
...
d5
=

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References[edit]