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

EGTB: win in 4 half-moves

# move score
1 Kd5 win in 3 half-moves
2 Kd3 win in 9 half-moves
3 Ke3 win in 9 half-moves
4 Ke4 win in 9 half-moves
5 Kc5 win in 11 half-moves
6 Kc3 win in 13 half-moves
7 Kc4 win in 13 half-moves
8 Nc1 win in 13 half-moves
9 Nb4 loss in 4 half-moves
10 Nc3 loss in 4 half-moves
11 Ke5 loss in 2 half-moves