Chess Opening Theory/1. e4/1...e5/2. d4/2...d6

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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)

rnbqkbnr/ppp2ppp/3p4/4p3/3PP3/8/PPP2PPP/RNBQKBNR


2...d6[edit]

This is an inferior way to enter a Philidor. This is refuted by dxe5 dxe5 Qxd8+ Kxd8 Bc4, with an uncomfortable endgame for black. Black would lose the right to castle, and White would have a lead in development. According to chess365, after 5.Bc4, white wins 42.1%, 32.5% end in a draw, and 25.1% end in a black victory.

Of course, White can always enter the main line Philidor with the lesser 3.Nf3.

Theory table[edit]

3 4 5
dxe5

dxe5

Qxd8+

Kxd8

Bc4 +/-
Nf3 =