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

EGTB: win in 4 half-moves

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