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

EGTB: win in 10 half-moves

# move score
1 Kd6 win in 9 half-moves
2 Kb7 win in 11 half-moves
3 Kd7 win in 11 half-moves
4 Kb8 win in 17 half-moves
5 Kc8 win in 17 half-moves
6 Kd8 win in 17 half-moves
7 Kb6 loss in 2 half-moves
8 Kc6 loss in 2 half-moves