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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kb6 win in 3 half-moves
3 Nc7 win in 3 half-moves
4 Kc5 draw
5 Kc7 draw
6 Kd6 draw
7 Kd7 draw
8 Nb6 draw
9 Ne7 draw
10 Nf4 draw
11 Kb7 loss in 2 half-moves
12 Nb4 loss in 2 half-moves
13 Nc3 loss in 2 half-moves
14 Ne3 loss in 2 half-moves
15 Nf6 loss in 2 half-moves