Chess Opening Theory/1. e4/1...e5/2. Nf3/2...d6/3. d4/3...Nd7/4. Bc4

Philidor 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 d6 3. d4 Nd7 4. Bc4

4.Bc4

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This tries to exploit f7. Now Black must be very cautious. There are tons of traps lurking. The natural Be7?, and Ngf6? all lose forcefully. The best move is 3..exd4 and then only followed by Ngf6, with a solid but passive position for black. Also, the awkward Ne7?? should be avoided. White is a bit better, but Black can still fight for everything.

Theory Table

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4 5 6 7 8 9
Hanham Variation ...
exd4
+/=
...
Ne7??
Ng5
d5
Qh5
Ng6
Bxd5
Bb4+
c3 +-
...
Be7?
dxe5
Nb6
Bb3
a5
a4
Be6
Bxe6
fxe6
Nd4 +/-
...
Ngf6?
dxe5
Nxe5
Nxe5
dxe5
Bxf7+
Ke7
Qxd8+
Kxd8
f3 +/-
...
c6
O-O
Be7
dxe5
dxe5
Ng5 +/-

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Bibliography

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