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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kb8 draw
3 Kc6 draw
4 Kc8 draw
5 Kd7 draw
6 Kd8 draw
7 Nd6 draw
8 Ng5 draw
9 Nh6 draw
10 Nd8 loss in 12 half-moves
11 Nh8 loss in 8 half-moves
12 Kb6 loss in 2 half-moves
13 Ne5 loss in 2 half-moves
14 Kd6 loss in 1 half-moves