Last modified on 4 March 2011, at 19:00

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

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 DefenceEdit

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 tableEdit

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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ReferencesEdit