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

EGTB: win in 4 half-moves

# move score
1 Nb3 win in 3 half-moves
2 Kb5 draw
3 Kb7 draw
4 Kc7 draw
5 Kd7 draw
6 Nb7 draw
7 Kd5 loss in 2 half-moves
8 Kd6 loss in 2 half-moves
9 Nc4 loss in 2 half-moves
10 Kb6 loss in 1 half-moves
11 Kc5 loss in 1 half-moves