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

EGTB: win in 4 half-moves

# move score
1 Kc5 win in 3 half-moves
2 Kc6 draw
3 Kd5 loss in 48 half-moves
4 Kd7 loss in 40 half-moves
5 Ke5 loss in 40 half-moves
6 Ke6 loss in 40 half-moves
7 Ke7 loss in 40 half-moves
8 Kc7 loss in 38 half-moves