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 Ke8 loss in 26 half-moves
3 Kg7 loss in 16 half-moves
4 Kf8 loss in 14 half-moves
5 Kg6 loss in 14 half-moves
6 Kg8 loss in 14 half-moves
7 Ke6 loss in 2 half-moves
8 Kf6 loss in 2 half-moves