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

EGTB: win in 8 half-moves

# move score
1 Kb4 win in 7 half-moves
2 Ka5 loss in 6 half-moves
3 Ka4 loss in 4 half-moves
4 Ka6 loss in 4 half-moves
5 Kb6 loss in 2 half-moves
6 Kc4 loss in 2 half-moves
7 Kc5 loss in 2 half-moves
8 Nb3 loss in 2 half-moves
9 Nc2 loss in 2 half-moves
10 Kc6 loss in 1 half-moves