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 Ke7 draw
3 Kf6 draw
4 Kf8 draw
5 Kg6 draw
6 Kg7 draw
7 Kg8 draw
8 Ke8 loss in 4 half-moves
9 Na7 loss in 2 half-moves
10 Nb6 loss in 2 half-moves
11 Nd6 loss in 2 half-moves
12 Ne7 loss in 2 half-moves