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 Kb6 draw
4 Kb7 draw
5 Kc5 draw
6 Kd5 draw
7 Kd7 draw
8 Nb7 draw
9 Nc4 loss in 2 half-moves
10 Kc7 loss in 1 half-moves
11 Kd6 loss in 1 half-moves