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

EGTB: win in 6 half-moves

# move score
1 Ke6 win in 5 half-moves
2 Kf4 loss in 10 half-moves
3 Kd4 loss in 8 half-moves
4 Kd5 loss in 8 half-moves
5 Ke4 loss in 8 half-moves
6 Kf5 loss in 8 half-moves
7 Kd6 loss in 2 half-moves
8 Kf6 loss in 2 half-moves