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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb7 draw
3 Kb8 draw
4 Kc6 draw
5 Kc8 draw
6 Kd6 draw
7 Nb6 draw
8 Nb8 draw
9 Nc5 draw
10 Ne5 draw
11 Nf6 draw
12 Nf8 draw
13 Kd8 loss in 16 half-moves