Instead of copying the centre, the reply comes from the side. Both kings come under fire early, so one slip decides it. Of the four central squares, pawns stand on d4 · e4. 1 pieces have left the board. Neither side has castled yet.
The position
Length
5 moves
To move
Black
Legal replies
23
Minor pieces out
White 0 · Black 0
Material
38 · 39
Castling rights left
KQkq
FEN
rnbqkbnr/pp1ppppp/8/8/3pP3/2P5/PP3PPP/RNBQKBNR b KQkq - 0 3
Move by move
Each move spelled out: which piece went from where to where.