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

EGTB: win in 4 half-moves

# move score
1 Kf4 win in 3 half-moves
2 Kd5 draw
3 Kf5 draw
4 Kf6 draw
5 Ke6 loss in 56 half-moves
6 Kd6 loss in 52 half-moves
7 Kd4 loss in 2 half-moves
8 Ke4 loss in 2 half-moves