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

EGTB: win in 4 half-moves

# move score
1 Ke8 win in 3 half-moves
2 Ke7 draw
3 Kf7 draw
4 Kg7 draw
5 Ne7 loss in 2 half-moves
6 Nf6 loss in 2 half-moves
7 Nh6 loss in 2 half-moves