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

EGTB: win in 4 half-moves

# move score
1 Kd8 win in 3 half-moves
2 Kc6 loss in 48 half-moves
3 Kb6 loss in 46 half-moves
4 Kc8 loss in 46 half-moves
5 Kb7 loss in 44 half-moves
6 Kb8 loss in 44 half-moves
7 Kd6 loss in 2 half-moves
8 Kd7 loss in 2 half-moves