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

EGTB: win in 4 half-moves

# move score
1 g5 win in 3 half-moves
2 Ke7 win in 5 half-moves
3 Kd8 draw
4 Ke6 draw
5 Ke8 draw
6 Kc6 loss in 2 half-moves
7 Kc7 loss in 2 half-moves
8 Kc8 loss in 2 half-moves
9 Kd6 loss in 2 half-moves