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

EGTB: win in 4 half-moves

# move score
1 Kg7 win in 3 half-moves
2 Kg8 win in 3 half-moves
3 Kh7 win in 5 half-moves
4 Nf6 loss in 2 half-moves
5 Ng3 loss in 2 half-moves
6 Ng7 loss in 2 half-moves
7 Nf4 loss in 1 half-moves