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

EGTB: win in 8 half-moves

# move score
1 Kc4 win in 7 half-moves
2 Kc2 win in 11 half-moves
3 Kc3 win in 11 half-moves
4 Kd2 win in 11 half-moves
5 Ke2 win in 11 half-moves
6 Kd4 loss in 2 half-moves
7 Ke3 loss in 2 half-moves
8 Ke4 loss in 2 half-moves