Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 a2 win in 3 half-moves
2 Ke3 draw
3 Ke4 draw
4 Kf5 draw
5 Kg3 draw
6 Kg4 draw
7 Kg5 draw
8 Kf3 loss in 8 half-moves
9 Ke5 loss in 2 half-moves