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

EGTB: win in 4 half-moves

# move score
1 Ke6 win in 3 half-moves
2 Kc5 draw
3 Kc6 draw
4 Kd5 draw
5 Kd7 draw
6 Ke5 draw
7 Ke7 draw
8 Kc7 loss in 54 half-moves