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 Kf7 draw
3 Kg7 draw
4 Nb6 draw
5 Ke8 loss in 6 half-moves
6 Kg8 loss in 6 half-moves
7 Nc7 loss in 4 half-moves