Instead of copying the centre, the reply comes from the side. The plan points straight at the enemy king. Of the four central squares, pawns stand on d4. Nothing has been captured yet. Neither side has castled yet.
The position
Length
6 moves
To move
White
Legal replies
31
Minor pieces out
White 0 · Black 1
Material
level
Castling rights left
KQkq
FEN
rnbqkb1r/ppppp2p/5np1/5p2/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq - 0 4
Move by move
Each move spelled out: which piece went from where to where.