Chess Opening Theory/1. e4/1...e5/2. Nf3/2...d6/3. d4/3...Nd7/4. Bc4/4...Be7/5. dxe5

Philidor Defence
	a b c d e f g h 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 a b c d e f g h
	Position in Forsyth-Edwards Notation (FEN) r1bqk1nr/pppnbppp/3p4/4P3/2B1P3/5N2/PPP2PPP/RNBQK2R b
	Moves: 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 Be7 5. dxe5

5.dxe5

This move looks illogical, trading the d-pawn for white's passive d6-pawn. However, it is necessary to prelude White's winning idea.

Philidor Defence
a b c d e f g h 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 a b c d e f g h
Position in Forsyth-Edwards Notation (FEN) r1bqk1nr/pppnbppp/3p4/4P3/2B1P3/5N2/PPP2PPP/RNBQK2R b
Moves: 1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 Be7 5. dxe5