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

EGTB: win in 4 half-moves

# move score
1 Kd6 win in 3 half-moves
2 Kc6 draw
3 Kd7 draw
4 Kd8 draw
5 Kc8 loss in 46 half-moves
6 Kb6 loss in 38 half-moves
7 Kb7 loss in 38 half-moves
8 Kb8 loss in 32 half-moves