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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kd6 win in 5 half-moves
3 Kd7 win in 7 half-moves
4 Kc8 win in 9 half-moves
5 Kd8 win in 9 half-moves
6 Kb8 win in 15 half-moves
7 Kb6 loss in 2 half-moves
8 Kc6 loss in 2 half-moves